understanding the health of operational personnel … · 2019-11-27 · richard galeano asm master...
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UNDERSTANDING THE HEALTH OF
OPERATIONAL PERSONNEL IN AN
AMBULANCE SERVICE: A MIXED
METHODS STUDY
Richard Galeano ASM Master of Public Health
Bachelor of Business (Distinction)
Submitted in fulfilment of the requirements for the degree of
Doctor of Philosophy
School of Public Health and Social Work
Faculty of Health
Queensland University of Technology
2019
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Keywords
Keywords
Ambulance Absenteeism
Benefit Finding Culture
Diet Emergency Medical Services
Emergency Medical Dispatcher Emergency Medical Technician
Fatalities Fatigue
Health Health Awareness
Health Status Help Seeking Behaviour
Injury Ill Health
Occupational Health and Safety Mental Health
Nutrition Paramedic
Physical Fitness Physical Health
Presenteeism Pre-hospital
Resilience Risk Factors
Safety Satisfaction
Sleep Stress
Spirituality Violence
Workplace Wellness Occupational Health and Safety
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Abstract
Abstract
Prehospital care is an important element of the health care system in Australia.
Those ambulance operational personnel (AOP) who provide frontline services
including paramedics, emergency medical dispatchers (EMDs) and operational
supervisors, are principally shift workers and experience relatively high occupational
injury rates; primarily musculoskeletal (MSK) but also psychological injury. A
systematic review of the literature showed evidence that paramedics are susceptible to
higher rates of injuries, mental health issues, low health status, musculoskeletal
disorders, poor sleep and high rates of fatigue as a result of general and ambulance
specific stressors. EMDs were also shown to have high rates of psychological distress,
obesity and alcohol consumption. Occupational violence was shown to be increasing
whilst shift work and extended work hours were implicated in fatigue, sleep and
depression. Health improvement strategies have previously focused on mental health
issues. The more complex relationships between the nature of the work, organisational
and work environment and the evidence base supporting interventions are not well
understood. Subsequently, these shortcomings have been a catalyst for this research
program. It was hypothesised that the health of AOP is worse than that of the general
population, which is the result of the interplay between the nature of ambulance work,
the working and the organisational environment.
The overarching aim of this research was to explore the health status of AOP
and to develop a conceptual understanding that may inform policy development,
management and future research. The research objectives were:
1. To describe the health status of ambulance operational personnel.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
2. To identify the individual, organisational and environmental factors that
impact on health status.
3. To develop a conceptual framework for understanding the relationships
between causative factors and health outcomes.
4. To identify strategies that may lead to the improvement of health.
The research question seeks to add to the body of knowledge on AOP health
status, risk factors and how they may be mitigated in the future. This explanatory
mixed methods research included a systematic literature review, a qualitative analysis
of data taken from a survey of 663 AOP and a qualitative analysis of data gathered
from semi-structured interviews of ambulance personnel with a variety of working
backgrounds, to determine those strategies that may lead to improvement in the health
of AOP.
This research developed a more comprehensive understanding of the health of
AOP. In addition, it provided measurable knowledge of the negative influence,
associations and impacts of risk factors, work-related health culture, stressors and
personal interests on work and health status. Additionally, the literature review has
related poor health status and risk factors associated with AOP, organisation of the
work and work culture to the safety of operational personnel. Consequently, the health
status of operational personnel in an ambulance service has been shown to be worse
than the Australian population. This contributes to higher levels of workplace related
injury and illness, chronic disease, obesity, fatigue, ill-health and absenteeism. This is
further evidenced by the outcomes of this research that found, asthma and
cardiovascular disease to be 2.5 times that of the Australian population. In addition,
central adiposity rates were 10% higher than the Australian population and those with
three or more chronic diseases were twice that of the Australian population. This
research has the potential to impact on AOP health and organisational performance
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and subsequently, patient safety and outcomes, if not addressed. Findings from this
research are useful in increasing understanding about the complex link between the
AOP health and work-life balance in a far-reaching context.
Significant differences were found in the thematic analysis of interviews and
showed understanding of the health of ambulance operational personnel (AOP) was
limited to mental health. The associations and modelling presented to interviewees
were regarded with uncertainty. There was a lack of an evidence base associated with
actions to improve that health.
This is the first research that has raised the spectre in such a broad manner, about
the inadequate health of AOP. It has provided further evidence that AOP need an
extended health improvement approach that focuses on all aspects of health, not just
those that are related to mental well-being. Whose responsibility this is remains
unclear, however this research suggests ambulance services need to take a lead role in
improving the organisation of the work and the working and organisational
environment that leads to health improvement of AOP. Careful consideration needs to
be given to how these work-related elements can be mitigated to improve the health of
ambulance operational personnel. Whilst mental health has been shown to be affected
by the work of AOP, this research creates an understanding of the implications for
AOP and ambulance organisations if a holistic approach to health status is not
implemented. As an example, the chain of predictors in Figure 5.3, shows a
complexity in relation to mental health disorders that has not previously been
understood.
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Table of Contents
Table of Contents
Keywords ............................................................................................................................. 3
Abstract ............................................................................................................................... 4
Table of Contents ................................................................................................................ 7
Table of Figures ................................................................................................................. 12
Table of Tables .................................................................................................................. 14
Abbreviations .................................................................................................................... 19
Acknowledgements ........................................................................................................... 21
1 Introduction .......................................................................................................... 22
1.1 Background .............................................................................................................. 22
1.2 Context .............................................................................................................. 23
1.3 Significance, Scope and Definitions ......................................................................... 24
1.4 Aim and Purpose ...................................................................................................... 25
1.5 Hypotheses .............................................................................................................. 26
1.6 Phases of the Research Program ............................................................................. 27
2 Literature Review .................................................................................................. 30
2.1 Introduction ............................................................................................................. 30
2.2 Health Status ........................................................................................................... 34
2.2.1 Occupational Health and Safety ..................................................................... 34
2.2.2 Physical and Mental Health............................................................................ 45
2.2.3 Psychological Stress ....................................................................................... 49
2.2.4 Resilience and Benefit Finding ....................................................................... 61
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Table of Contents
2.3 Measures of Health Status ....................................................................................... 67
2.4 Factors Influencing Health and Wellbeing of AOP .................................................... 73
2.4.1 Individual Factors ............................................................................................ 74
2.4.2 Pre‐Employment testing ................................................................................. 77
2.4.3 Education and Training ................................................................................... 79
2.4.4 The Nature of Ambulance Work ..................................................................... 80
2.4.5 Occupational Violence .................................................................................... 81
2.4.6 The Nature of the Working Environment ....................................................... 84
2.4.7 The Organisational Environment .................................................................... 92
2.5 Health Improvement Strategies ................................................................................ 94
2.6 Conclusion................................................................................................................. 98
3 Research Design .................................................................................................. 101
3.1 Quantitative Methods ............................................................................................ 104
3.1.1 Determining Sample Size .............................................................................. 107
3.1.2 Quantitative Data Input ................................................................................ 108
3.1.3 Quantitative Data Analysis ............................................................................ 110
3.2 Qualitative Methods ............................................................................................... 113
3.2.1 Qualitative Data Collection ........................................................................... 116
3.2.2 Qualitative Data Analysis .............................................................................. 117
3.3 Reliability and Validity of the Survey Instrument ............................................... 120
3.3.1 Validity .......................................................................................................... 120
3.3.2 Reliability ...................................................................................................... 122
3.3.3 Administration of the Survey .................................................................. 124
3.4 Ethical Considerations ............................................................................................ 125
3.5 Conclusion............................................................................................................... 127
4 Results ................................................................................................................ 128
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
4.1 Introduction ........................................................................................................... 128
4.2 Stage One – Demographic and Descriptive Analysis ............................................. 130
4.2.1 Health Status of Individual Workers ............................................................ 135
4.2.2 Work Status .................................................................................................. 146
4.2.3 Risk Factors .................................................................................................. 149
4.2.4 Organisational Symptomology ..................................................................... 163
4.2.5 Personal Interests / Caring for Self .............................................................. 174
4.3 Stage Two ‐ Regression Modelling ............................................................... 179
4.3.1 Health Status ................................................................................................ 181
4.3.2 Chronic Disease ............................................................................................ 185
4.3.3 Organisational Symptomology ..................................................................... 190
4.3.4 Caring for Self ............................................................................................... 195
4.3.5 Risk Factors .................................................................................................. 200
4.3.6 Conclusion .................................................................................................... 212
4.4 Stage Three ‐ Thematic Analysis ............................................................................ 213
4.4.1 Step One: Becoming familiar with the data ................................................. 213
4.4.2 Step 2: Generating Codes ............................................................................. 214
4.4.3 Step three: Searching for themes ................................................................ 216
4.4.4 Step 4: Review themes ................................................................................. 217
4.4.5 Step 5: Defining themes ............................................................................... 227
4.5 Conclusion .............................................................................................................. 233
5 Discussion ........................................................................................................... 234
5.1 Introduction ........................................................................................................... 234
5.2 The Health of AOP ................................................................................................. 235
5.2.1 Occupational Health and Safety ................................................................... 237
5.2.2 Chronic Diseases .......................................................................................... 240
5.2.3 Factors Influencing the Health of AOP ......................................................... 252
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Table of Contents
5.2.4 The Working Environment ............................................................................ 265
5.3 Strategies to Improve AOP Health Status ............................................................... 281
5.3.1 Improving the Health and Safety of AOP ...................................................... 284
5.3.2 Improving Shift Work .................................................................................... 288
5.3.3 Worksite Wellness Programs ........................................................................ 290
5.4 A Conceptual Framework of Understanding .......................................................... 296
6 Conclusions ......................................................................................................... 305
6.1 Implications for Policy Makers ................................................................................ 306
6.2 Strengths and Limitations ....................................................................................... 320
6.2.1 Strengths ....................................................................................................... 320
6.2.2 Limitations .................................................................................................... 322
6.3 Recommendations for Future Research .................................................................. 325
6.3.1 Recommendation One .................................................................................. 326
6.3.2 Recommendation Two .................................................................................. 327
6.3.3 Recommendation Three ............................................................................... 327
6.3.4 Recommendation Four ................................................................................. 327
6.3.5 Recommendation Five .................................................................................. 328
6.3.6 Summary ....................................................................................................... 328
7 Bibliography ........................................................................................................ 331
8 Appendices ......................................................................................................... 368
8.1 Appendix A: Ethics Approval, Recruitment Information and Survey ....................... 368
8.1.1 Information Sheet for Participants ............................................................... 372
8.1.2 Ambulance Health Survey (AHS) 2015 .......................................................... 378
8.1.3 Consent Form for the AHS 2015 ................................................................... 380
8.2 Appendix B: Literature Review Synopsis ................................................................. 412
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
8.3 Appendix C Associations, Effects and Odds Ratio Tables ....................................... 431
8.4 Appendix D: Regression Plan ................................................................................. 443
8.5 Appendix E: Semi‐Structured Interview ................................................................. 453
8.6 Appendix F: Category of Variables ......................................................................... 458
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Table of Figures
Table of Figures
Figure 2-1. Systematic Review of the Literature .................................................................. 32
Figure 2-2. Overall and LTI Rates (QAS, 2016b) ................................................................ 38
Figure 2-3. Ratio of Near Misses to Injuries from Three Models ........................................ 43
Figure 2-4. Prevalence of Mental Health Disorders in Paramedics ..................................... 52
Figure 2-5. Conceptual Model – Obesity Relationships with AOP ..................................... 59
Figure 2-6. Influencers on Effective Worksite Wellness Programs ..................................... 66
Figure 2-7. Whole of Working Life Approach to Health Surveillance. ............................... 78
Figure 2-8. Occupational Violence Rates in the Ambulance Service. ................................. 82
Figure 3-1. Sequential Explanatory Strategy ...................................................................... 102
Figure 4-1. Age: Respondents vs. Ambulance Service. ..................................................... 130
Figure 4-2. Employee Categories: Respondents vs. Ambulance Service. .......................... 135
Figure 4-3. Asthma: Age and Gender - Ambulance Service vs. Australian Population
..................................................................................................................... 142
Figure 4-4. Respondents who do other Work ..................................................................... 148
Figure 4-5. Sleep Hours: 2003 vs. 2015 ............................................................................. 161
Figure 4-6. Sleep Hours vs. Shift Pattern ........................................................................... 162
Figure 4-7. Reasons for Considering Leaving the Ambulance Service ............................. 164
Figure 4-8. Male Job Satisfaction vs. Age Grouped .......................................................... 167
Figure 4-9. Female Job Satisfaction vs. Age Grouped ....................................................... 167
Figure 4-10. Fatigue Changes Throughout the Shift Cycle. ............................................... 172
Figure 4-11. Diagrammatic Approach to a Structural Connectedness Model .................... 179
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Figure 4-12. Proportion of Categories ............................................................................... 216
Figure 4-13. Initial Thematic Map - Four Draft Themes ................................................... 217
Figure 4-14. Final Thematic Map – Five Themes.............................................................. 232
Figure 5-1. The AOP Fatigue Quandary. ........................................................................... 271
Figure 5-2. The Modified AOP Fatigue Quandary. ........................................................... 272
Figure 5-3. An Interconnectedness Model for Mental Health Disorders ........................... 287
Figure 5-4. Improving Health Related Risk Factors and Safety ........................................ 295
Figure 5-5. A Conceptual Model of Understanding the Health of AOP. ........................... 302
Figure 5-6. A Conceptual Framework for Health Improvement of AOP .......................... 303
Figure 6-1. A six point policy map .................................................................................... 306
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Table of Tables
Table of Tables
Table 1.4-1 Objectives ......................................................................................................... 26
Table 2.2-1 EMS Injury Rates .............................................................................................. 39
Table 2.2-2 Effects of Physical Activity on Depression and Dementia ............................... 48
Table 2.2-3 General and Ambulance Specific Stressors ...................................................... 53
Table 2.2-4 Acute and Chronic Stressors in Ambulance ..................................................... 54
Table 2.4-1 Potential Negative and Positive Effects of Extended Shift Hours .................... 87
Table 2.5-1 Elements and Effectiveness of Workplace Physical Activity Programs
in Relation to Cardio Respiratory Fitness ...................................................... 98
Table 3.1-1 Examples of Different Data/Variable Types Collected .................................. 110
Table 3.1-2 Regression Analysis – Dependent Variables .................................................. 112
Table 3.2-1 Stages of the Thematic Analysis ..................................................................... 118
Table 3.2-2 Strategies used for Enhancing the Credibility of the Qualitative Research
..................................................................................................................... 119
Table 3.3-1 Face Validity Questions .................................................................................. 121
Table 3.3-2 Cronbach’s Alpha and Mean Inter-Item Correlations - AHS 2015 ................ 123
Table 4.2-1 Highest Qualification by Age ........................................................................ 132
Table 4.2-2 Highest Qualification by Employment Type .................................................. 132
Table 4.2-3 Qualifications .................................................................................................. 132
Table 4.2-4 Respondent Location by Station Classification .............................................. 133
Table 4.2-5 Respondent Employment Categories .............................................................. 134
Table 4.2-6 Self-Reported Health: Respondents vs. Other Sources ................................... 136
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Table 4.2-7 Kessler Psychological Distress Score: Respondents vs. Australian
Population .................................................................................................... 137
Table 4.2-8 Leading causes of Ill Health: Australian vs. Respondent Population ............. 140
Table 4.2-9 Arthritis ........................................................................................................... 141
Table 4.2-10 CVD Diagnosis: Age - Respondents vs. Australian Population ................... 144
Table 4.2-11 Diabetes: Age & Gender, Respondents vs. Australian Population ............... 145
Table 4.2-12 Other Diabetes Associations ......................................................................... 145
Table 4.2-13 Experience -Years of Service ....................................................................... 147
Table 4.2-14 Overweightness: Respondents & Other Sources .......................................... 150
Table 4.2-15 Self-Measured Overweightness & Health Status Indicators ......................... 151
Table 4.2-16 Central Adiposity of Respondents ................................................................ 152
Table 4.2-17 Hypertension & Health Status Indicators ..................................................... 154
Table 4.2-18 Exercise Hours - Respondents ...................................................................... 155
Table 4.2-19 Mean Sitting Hours - Respondents ............................................................... 156
Table 4.2-20 Male Respondents with One or More Stressors ........................................... 160
Table 4.2-21 Work Related Health Culture ....................................................................... 165
Table 4.2-22 Job Satisfaction in an Ambulance Service .................................................... 166
Table 4.2-23 Fatigue Experience in the Ambulance Service ............................................. 171
Table 4.2-24 Shift Cycle Fatigue and a Positive Job Satisfaction Score ........................... 173
Table 4.2-25 Why Respondents Don’t Take Rest Breaks? ................................................ 175
Table 4.2-26 Major Barriers to Exercise ............................................................................ 176
Table 4.2-27 Hours Worked .............................................................................................. 178
Table 4.2-28 Hours Worked vs. Age ................................................................................. 178
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Table of Tables
Table 4.3-1 Regression Modelling – Dependant Variables by Category ........................... 180
Table 4.3-2 Predictors of Self-Reported Health ................................................................. 181
Table 4.3-3 Predictors of MHD .......................................................................................... 182
Table 4.3-4 Predictors of Psychological Distress ............................................................... 183
Table 4.3-5 Predictors of Disability ................................................................................... 184
Table 4.3-6 Predictors of Long Term Conditions .............................................................. 185
Table 4.3-7 Predictors of Asthma ....................................................................................... 186
Table 4.3-8 Predictors of Cardiovascular Disease ............................................................. 186
Table 4.3-9 Predictors of Cancer ........................................................................................ 187
Table 4.3-10 Predictors of Diabetes ................................................................................... 188
Table 4.3-11 Predictors of Arthritis ................................................................................... 188
Table 4.3-12 Predictors of Three or more Chronic Diseases ............................................. 189
Table 4.3-13 Predictors of Job Satisfaction ........................................................................ 191
Table 4.3-14 Predictors of Work-Related Health Culture .................................................. 192
Table 4.3-15 Predictors of Thoughts of Leaving ................................................................ 193
Table 4.3-16 Predictors of Rest Breaks .............................................................................. 194
Table 4.3-17 Predictors of Fatigue ..................................................................................... 195
Table 4.3-18 Predictors of Sleep Hours ............................................................................. 196
Table 4.3-19 Predictors of Lack of Time ........................................................................... 198
Table 4.3-20 Predictors of Lack of Energy ........................................................................ 199
Table 4.3-21 Hours Worked ............................................................................................... 199
Table 4.3-22 Predictors of Anxiety .................................................................................... 200
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Table 4.3-23 Predictors of Back Injury .............................................................................. 201
Table 4.3-24 Predictors of Obesity - BMI ......................................................................... 202
Table 4.3-25 Predictors of Central Adiposity – Waist-Hip ................................................ 204
Table 4.3-26 Predictors of Systolic Blood Pressure .......................................................... 204
Table 4.3-27 Predictors of Diastolic Blood Pressure ......................................................... 206
Table 4.3-28 Predictors of Blood Pressure (SBP/DBP) ..................................................... 207
Table 4.3-29 Predictors of Exercise Hours ........................................................................ 208
Table 4.3-30 Predictors of Sedentary Behaviour ............................................................... 209
Table 4.3-31 Predictors of Vegetable Consumption .......................................................... 210
Table 4.3-32 Predictors of Fruit Consumption .................................................................. 211
Table 4.3-33 Age as a Predictor Variable for Dependent Variables .................................. 212
Table 4.4-1 Frequency and Proportion of Categories ........................................................ 214
Table 4.4-2 Coding Tree - Words, Phrases, Categories and Codes ................................... 215
Table 5.2-1 Characteristics of Respondents by Employment Category............................. 236
Table 8.3-1 Station Classification ...................................................................................... 431
Table 8.3-2 Other Associations with Decreasing Self-Reported Health ............................ 431
Table 8.3-3 Mental Health Conditions vs. Job Satisfaction ............................................... 432
Table 8.3-4 Personal and Family Stressors ................................................................... 432
Table 8.3-5 Disability vs. Employment Type .................................................................... 433
Table 8.3-6 Types of Cardiovascular Disease - Respondents ............................................ 433
Table 8.3-7 Self-Reported Overweightness & Health Status Indicators ............................ 434
Table 8.3-8 Fruit & Vegetable Consumption - Respondents ............................................. 434
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Table of Tables
Table 8.3-9 Fruit & Vegetables vs. Health & Works Status Indicators ............................. 435
Table 8.3-10 Alcohol Consumption – Respondents ........................................................... 436
Table 8.3-11 Sleep & Other Statistically Significant Associations .................................... 436
Table 8.3-12 Work-Related Health Culture Responses ..................................................... 437
Table 8.3-13 Job Satisfaction Scale & Responses .............................................................. 438
Table 8.3-14 Job Satisfaction vs. Increased Alcohol Consumption ................................... 439
Table 8.3-15 Job Satisfaction vs. Bodily Pain .................................................................... 439
Table 8.3-16 Job Satisfaction vs. Disability ....................................................................... 440
Table 8.3-17 Regular Rest Breaks and Positive Job Satisfaction Associations ................. 441
Table 8.3-18 Irregular Rest Breaks & Negative Associations............................................ 441
Table 8.3-19 Lack of Time or Energy – Associations ........................................................ 442
Table 8.3-20 Workplace Wellness Programs Associations ................................................ 442
Table 8.6-1 Variables Categorised ..................................................................................... 458
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Abbreviations
Abbreviations
Amb = Ambulance AP = Australian population AOP = Ambulance operational personnel APSC = Australian Public Service Commission BFRSS = Behavioural Risk Factor Surveillance System BORRTI = The Bell Object Relations & Reality Testing Scale c/s = Cross sectional Č = With CCP = Critical care paramedic CIS = Critical incident stress EHMP = Employee health management programs EMDs = Emergency medical dispatchers EMS = Emergency medical system EMT = Emergency medical technician Env = Environmental FCE = Functional capacity evaluation GP = General population GWP = General working population HADS = Hospital Anxiety and Depression Scale IES = Impact of Events Scale IES-R = Impact of Events Scale-Revised JSQ = Job Strain Questionnaire JSS = Job Stress Survey LEADS = Longitudinal EMT Attributes and Demographics Scale MSK = Musculoskeletal NASS = Norwegian Ambulance Stress Survey NGSE = New General Self-Efficacy Scale PDHS = Police Daily Hassles Scale PDS = Post-Traumatic Diagnostic Scale Pop = Population PTG = Post-traumatic growth PTSD = Post-traumatic stress disorder PTSS = Post-traumatic stress symptomology PWBS = Well-Being Psychological Support Scale QAS = Queensland Ambulance Service QAO = Queensland Audit Office QEAW = Questionnaire on the Experience & Assessment of Work QoL = Quality of life Sig = Significant SIMP = Single Item Measure of Personality SPS = Perceptions of Social Support Scale SSS = Social Support Scale SWY = Shift work years T2DM = Type 2 Diabetes Mellitus WHP = Workplace-based health promotion WMSD = Workplace musculoskeletal disorder YIA = Years in ambulance
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Acknowledgement
Statement of Original Authorship
The work contained in this thesis has not been previously submitted to meet
requirements for an award at this or any other higher education institution. To the best
of my knowledge and belief, the thesis contains no material previously published or
written by another person except where due reference is made.
Signature: QUT Verified Signature
Date: 29 October 2019
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Acknowledgements
I would like to extend my appreciation to the following people who have helped
with this demanding journey. Foremost, I would like to express my sincere gratitude
to my Principal Supervisor Professor Gerard FitzGerald, Associate Supervisors,
Emeritus Professor Tony Parker and Doctor Adem Sav for supporting and tolerating
my frequent absences from academia. Their patience, commitment, advice and
enthusiasm have been a constant source of support throughout this long process. This
research would not have been possible without their help and that of 663 ambulance
operational personnel who unselfishly provided me with their health data. The
Queensland Ambulance Service supported this research from the start and continued
to support it with access to ambulance operational personnel data, without which there
would have been no research.
I would also like to acknowledge the support of the KJ McPherson (KJM)
Education and Research Foundation, without which this research would have been
significantly more difficult to conduct. They provided me with a funding grant that
supported all the incidental components of the research.
Finally, I’d like to thank my wife Barbara who has patiently watched, supported
and encouraged me through a lifelong journey of learning, change and continuing
challenge.
Thank you all.
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Introduction
1 Introduction
1.1 Background
Prehospital care is an important adjunct of the health care system in Australia,
and ambulance services are a subset of prehospital care. Ambulance services include
a large range of professional and support staff. Those operational personnel who
provide this service can be classified in terms of paramedics, emergency medical
dispatchers (EMDs) and supervisors and are primarily shift workers. Paramedics
experience high levels of work related psychological (Bentley, Crawford, Wilkins,
Fernandez, & Studnek, 2013; Pyper & Paterson, 2016; Petrie et al., 2018) and physical
injury (primarily musculoskeletal) (Maguire, B.J., O'Meara, Brightwell, O'Neill, &
Fitzgerald, 2014). These problems are exacerbated by high occupational violence rates
(Maguire, 2018a; Maguire, 2018b), poor sleep patterns (Sofianopoulos, Williams, &
Archer, 2012) and working in a high demand and low control work environment
(Regehr, C. M., D, 2007). EMDs have also been reported to have high levels of obesity
and physical health complaints that may be a result of psychopathology (Lilly, London,
& Mercer, 2016) and post-traumatic stress disorder (Pierce & Lilly, 2012).
Organisational and environmental factors associated with ambulance work have
the potential to adversely affect the health and wellbeing of ambulance operational
personnel (AOP) as a consequence of the combined influence of the nature of the work
involving:
Exposure to risk factors such as assault, infectious diseases and psychologically
distressing human suffering.
Sedentary activities, high speed travel and unpredictable locations.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Work scheduling with long 24/7 periods of shift work.
1.2 Context
To meet high ambulance service demand, paramedics often work twenty-four-
hour shift patterns, have an intermittent pattern of work and function in an
unsupervised and highly stressful environment (Asbury et al., 2018). They may need
to deal with patients who are critically ill as well as those with less severe illnesses or
injuries. The circumstances in which they operate include medical, surgical and
traumatic incidents and situations in which individuals are in a high state of distress
and increasingly affected by drugs or alcohol (Maguire, Brian J, O'meara, O'neill, &
Brightwell, 2018). They also work under the intense scrutiny of distressed relatives
and bystanders often in inconvenient and unfamiliar environments. Paramedics may
be subjected to complaints, verbal and physical violence, irregular eating, long shifts
without rest breaks and with little autonomy in the work that they are assigned to
(Crowe et al., 2018).
Increasingly they operate in an environment of growing workload, injuries,
fatigue and high demand for clinical accuracy and an uncontrolled safety environment
(Weaver, Wang, Fairbanks, & Patterson, 2012; Courtney, James A., Francis, & Paxton,
2013; Roberts, Sim, Black, & Smith, 2015). Although paramedic employment is
regarded as physically active, they may also be exposed to periods of sedentary activity
(Coffey, Macphee, Socha, & Fischer, 2016).
EMDs are shift workers who receive calls for assistance, make critical decisions
about the level of care required and despatch appropriate resources. They can be
overweight, experience alcohol abuse, post-traumatic stress disorder (PTSD) and
depression (Pierce & Lilly, 2012; Lilly et al., 2016). Additionally, they experience
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Introduction
high call volumes and can be exposed to verbal abuse and distressed callers (Coxon et
al., 2016).
1.3 Significance, Scope and Definitions
The research that focuses on paramedicine has been developing exponentially
over the last 12 years in conjunction with the development and professionalism of
AOP. In addition, paramedics now require university clinical qualifications (Brooks,
I. A., Cooke, Spencer, & Archer, 2016; Brooks, I. A., Grantham, Spencer, & Archer,
2018). However, research that focuses on the health-related issues for operational and
support staff within ambulance services has remained minimal and, in some instances,
non-existent. For example, supervisors and managers in ambulance services were little
discussed within the literature, even though they are a critical element in providing
ambulance services. Supervisors and managers can have multiple functions that
encompass clinical, operational, personnel support and managerial work.
This research is critically important for the health of AOP and the performance
of ambulance organisations. It is the only known research that is a substantial review
of AOP (paramedics, EMDs, and supervisor/managers) and combines issues of health
status, the relationship to the organisational and working environment, work and
personal factors and presenting results to ambulance service representatives seeking
opinion and advice on improving that health. This research will link evidence from the
literature, AOP and ambulance representatives (through semi-structured interviews
and a thematic analysis) to develop a conceptual framework of understanding and a
theoretical framework for health improvement and future research on this subject. The
health of operational personnel must be considered in the context of mental, physical
and psychosocial health and lead to ambulance services in Australia acting to improve
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
the health of AOP. It will show that the well-being of AOP is no longer about mental
health, which has for so long been related to the work of AOP, with little understanding
of the actual associations and impacts. Whilst causes will not been determined by this
research, the mental health of AOP will be related to their physical health, the
organisation of the work and the working and organisational environment. This
research will show there is little evidence for current policies that have the health of
AOP as their priority.
Definitions
LTIFR - is the number of lost time injuries in a given period per million hours
worked. A lost-time injury is an incident that results in a fatality, permanent
disability or time lost from work which may be as little as one day or shift.
Overweightness - BMI ≥ 25 ≤ 30.
Obesity - BMI > 30.
Central adiposity - Waist-Hip ♂ > .91, ♀ > .81.
1.4 Aim and Purpose
The goal of this research was to investigate the health status of AOP and the
influence of demographic, organisational and environmental factors on the health
outcomes, across the three operational groups. These include paramedics, EMDs and
supervisor/managers. The objectives of this research are described in Table 1.4-1.
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Introduction
Table 1.4-1 Objectives
Detailed Objectives
To describe the health status of ambulance operational personnel.
To identify the individual, organisational and environmental factors that impact
on health status.
To develop a conceptual framework for understanding the relationships between
causative factors and health outcomes.
To identify strategies that may lead to the improvement of health.
This research also seeks to add to the body of knowledge on AOP health status,
risk factors and how that may be mitigated in the future. Within this aim, the research
seeks to answer the following questions:
What are the characteristics of the physical and mental health of ambulance
operational personnel?
What are the individual and work-related factors that influence this health?
What strategies may lead to the improvement of health?
1.5 Hypotheses
Primary: The health of operational personnel in an ambulance service is worse than
that of the general population.
Secondary: This poor health is the result of the interplay between the nature of
ambulance work, the working and the organisational environment.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
1.6 Phases of the Research Program
These will be addressed in the following chapters of the thesis:
2. Literature review: This was a systematic review of the literature which informed
the current physical and mental health status of paramedics and to a lesser extent,
(as there was limited literature) EMDs. Apart from the impact leadership style
(Ghorbanian, Bahadori, & Nejati, 2012) has on the health of paramedics, there was
no evidence in relation to supervisor/managers. In addition, the literature review
provided the basis for understanding the individual and work-related factors that
influence health, and variable evidence on strategies that may improve the health
of this sub-population.
3. Research design: Chapter three described the development of a mixed methods
study, including a quantitative/qualitative design and the development of a survey
tool (The Ambulance Health Survey 2015 [AHS 2015]) designed to provide
information on the health status of different categories of AOP. The AHS 2015
was also designed with recognition of the multiple factors influencing health status
and their relationship and impact on short and longer-term health outcomes to
inform the qualitative component of the research. The research design included a
methodology for statistical analysis, determining face and content validity of the
AHS 2015, ethical considerations, a semi-structured interview approach to sharing
these results and the thematic analysis of these conversations.
4. Results: This was described in three stages.
Stage One: The AHS 2015 was released in April 2015 and returns closed in
August 2015. Returns totalled 663 and provided an overview of the demographics,
health, work and risk factors, personal interests and caring for self. Multiple
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Introduction
important associations were discovered between organisational, individual and
environment factors and how they impacted on the health of operational personnel
in the three categories.
Stage Two: Effect size and contextual inclusion of independent variables using
ordinal and binary logistic regression analysis was used to develop multiple
predictive models.
Stage Three: Nine semi-structured interviews were conducted and transcribed
in 2017. The semi-structured interviews were difficult to schedule based on the
availability of the participants and the work commitments of the researcher who
was working in remote locations for seven months of 2017. These interviews were
analysed using a thematic approach to assist in developing health and wellbeing
proposals that would inform policy development. The thematic analysis was
conducted in early 2018.
5. Discussion: This chapter integrates the findings of AHS 2015 and the outcomes
of key stakeholder interviews with the current evidence. The context explores how
the findings of this research may extend the grasp of these issues and inform the
development of a conceptual framework of understanding and a model for health
improvement. It seeks to identify similarities between these findings and what was
previously known, identify new knowledge, theoretical models and explore
options for practical application.
6. Conclusions: This chapter discussed the implications of the research for policy
makers in relation to the health improvement of AOP in an ambulance service.
Strengths and limitations were outlined, and five recommendations were made in
consideration of future research.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
7. Bibliography: This is an alphabetical list of all references.
8. Appendices: These include:
a. Appendix A: Ethical Approval and AHS 2015 Survey Documentation.
b. Appendix B: Overview of the Literature Review.
c. Appendix C: Associations, Effects and Odds Ratio Tables.
d. Appendix D: Regression Plan.
e. Appendix E: Ethical Approval and Semi-Structured Interview
Documents.
f. Appendix F: Variable Categorisation.
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Literature review
2 Literature Review
2.1 Introduction
Chapter two explores what is known about the health status of AOP and the
influence of organisational, environmental, personal, lifestyle factors, education and
training in developing and sustaining a healthy workforce able to match the physical
and mental demands of the work. This research was conducted at a time of significant
change in each of these domains and increasing demand for emergency services
globally and in Australia, along with changes in population demographics with an
ageing population and longer life expectancy. These changes, together with the
introduction of new technologies and therapeutic practices contribute to new and
emerging challenges in providing cost effective ambulance services. This will require
a new and comprehensive approach to identification of potential health hazards and
risks and systems for organisations and individuals to ensure effective risk control
solutions.
Efficacious prehospital care systems provide immediate medical care as well as
responsive and effective access to ongoing care and are thus a critical component of
the continuum of modern health care systems. Effective ambulance services require
paramedics, EMDs and operational leaders to communicate effectively with each other
within regulatory and organisational systems and subject to quality improvement
strategies. The unpredictable nature of the work, increasing demand for services and a
challenging clinical environment presents a need for those delivering ambulance
services to have the physiological and psychological capacity to match these demands
(Pyper & Paterson, 2016; Varker et al., 2017; Petrie, Milligan-Saville, et al., 2018).
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Therefore, an organisational structure which recognises the need for effective health
and safety systems and procedures to develop and sustain a healthy workforce is
essential in achieving this goal.
The aim of this review was to examine the literature and provide evidence-based
information necessary to evaluate the health status of AOP and identify the
organisational, environmental, personal and educational factors that influence AOP
health and wellbeing. The specific objectives of this review were:
To identify AOP health priorities and their impact on ambulance services.
To identify the current knowledge in relation to the health status of AOP and
prioritise the health issues.
To identify the health risk factors, opportunities and strategies for effective
organisational and individual risk control solutions in the ambulance service
context.
A broad range of electronic databases were searched including: EBSCOhost,
Library Press, ProQuest dissertations, Theses Global, Science Direct, Web of Science,
PubMed, Google Scholar, Cochrane Library, Informit, Safe Work Australia, Australian
Bureau of Statistics, Australian Institute of Health, National Electronic Injury Surveillance
System (NEISS) in the United States (U.S.), Trove and QUT eprints using key word
criteria such as ‘paramedic’. Each of the key words were cross referenced against ‘other
search words’ such as ‘fatigue’ and secondary key words, such as ‘nurses’, were used as
necessary. Key words are described on page three of this thesis.
A modified ‘Preferred Reporting Items for Systematic Reviews and Meta-Analysis’
(PRISMA) (Moher et al., 2009) methodology was used to identify a total of 1078
references. All papers, reports and records were examined, and in some instances, new
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Literature review
terms were discovered that required the search to be re-run. For instance, in the Australian
context the term ‘Paramedic’ was used, but in the United States (U.S.) context the term
‘Emergency Medical Technician’ or ‘Paramedic’ can be used. Older papers that had
limitations in the currency and quality of the evidence were considered and, in some
instances, included. For instance, (Boreham, Gamble, Wallace, Cran, & Stevens, 1994)
was one of five papers, and the oldest, that were found on the health status of paramedics.
This process is described in Figure 2.1.
Figure 2-1. Systematic Review of the Literature
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
An evidence map of the major papers was developed to identify gaps in the
knowledge base for AOP health and was categorised relative to research design,
demographics, methods and key outcomes (Appendix B). Only two of the studies were
randomised control trials and these had no relationship with prehospital care. The
remainder were cross sectional (n = 22), longitudinal (n = 59) and case studies,
prospective surveys, retrospective reviews of data sets, reports, data sets, theses, meta-
analyses and systematic reviews. When an area of interest had limited relevant
literature on ambulance, this discussion was drawn from other like professions or those
who work in similar environments (e.g. fire fighters and police). The primary likeness
for this inclusion emanates from being a first responder in an emergency. Additionally,
those who do have a direct clinical care responsibility and work shift work in a patient
care environment were also included (e.g. nurses). General literature on an issue (e.g.
shift work), was also considered to bring context to the review.
Three dominant themes emerge from the analysis of the literature: 1)
descriptions of the health status of AOP, 2) identification and analysis of the factors
that influence the health status and 3) identification of remedial strategies. The
following is structured around these three themes.
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Literature review
2.2 Health Status
2.2.1 Occupational Health and Safety
The Occupational Health and Safety (OHS) risks associated with the conduct of
ambulance services are likely to exceed those of most other professions (Maguire, B.J.
et al., 2014). Paramedics are exposed to some of the most traumatic experiences and
work in uncontrollable and unpredictable environments, involving public places and
people’s homes (Roberts et al., 2015). They provide services on a 24-hour basis,
leading to disrupted patterns of sleep, eating and limited positive social interactions.
They are also reported to have worse health than the general population (Studnek, J.
R., Bentley, et al., 2010).
Fatalities
In the U.S., fatalities occur regularly, and ambulance personnel have a higher
rate of fatal accidents and a higher standardised mortality than the general population
and other health occupations (Sterud et al., 2006; Maguire, Brian J. & Smith, 2013).
For example, between 1992 and 1997, 114 fatalities occurred in the US representing a
fatality rate of 12.7 per 100,000 EMS workers. This was 2.5 times the national average
for all workers (Maguire, B. J., Hunting, Smith, & Levick, 2002; Reichard, Marsh, &
Moore, 2011). An examination of the U.S. National Electronic Injury Surveillance
System from 2003 through to 2007 identified 65 ambulance employee fatalities, most
of which were transport related accidents (45% motor vehicle, 31% aircraft) (Reichard
et al, 2011). This was a fatality rate of 7.2 fatalities per 100,000 paramedics which was
1.4 times the national average (Reichard et al., 2011).
In contrast to the U.S. experience, a review of paramedic fatalities in Australia
during the period 2000 - 2010 (Maguire, B.J. et al., 2014), indicated a fatality rate of
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
approximately six times the national average; with an average of one paramedic killed
every two years in a transport related accident.
Injuries
In addition to fatalities, paramedics also have higher injury rates than the general
population or other health professions. A retrospective examination of occupational
health records from 1998 through to July 2002, of two urban EMS agencies in the U.S.
(Maguire, B. J., Hunting, Guidotti, & Smith, 2005) identified the relative risk for EMS
workers of a work-related injury as 1.5 compared to the general population. The injury
and lost time injury (LTI) rates were 34.6/100 and 19.6/100 full time equivalent (FTE)
workers respectively, with 57% of injuries resulting in lost workdays. These injury
rates were the highest reported by the Department of Labour for any industry in the
U.S.
An analysis of lost time injury data from the Longitudinal Emergency Medical
Technician Attributes and Demographics (LEADS) study in the U.S. (Studnek, J. R.,
Ferketich, & Crawford, 2007), indicated a lost time injury rate of 8.1/100 FTE for EMS
workers. These results may be underreported due to different data collection methods
(incident records versus self-reported data), small sample sizes, non-representative
samples and lack of comparison with matched samples (Sterud et al., 2006). In an
analysis of 1,295 workers compensation claims from public safety providers in one
urban population in the U.S. over 29 months, 36% were from EMS providers who had
the highest rates of lost time and medical evaluations in comparison to police and
firefighters (Suyama, Rittenberger, Patterson, & Hostler, 2009).
Despite these findings, the source of the data provides confusing and
occasionally contradictory findings. A review of data from the U.S. National
Electronic Injury Surveillance System – Occupational Supplement (NEISS-Work), a
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Literature review
work based data collection, found injury rates amongst EMS workers of 4.9/100;
significantly lower than the lost time injury rate of 34.6/100 described by Reichard &
Jackson, (2010) and Maguire, Brian J. & Smith, (2013). This difference reflects that
only 34% of all worker injuries were treated in emergency departments (ED) where
the NEISS-Work data was collected (Reichard & Jackson, 2010). Thus, reliance on
routine work based injury data may underestimate the actual injury rate, as injured
paramedics do not necessarily go to an emergency department (Reichard, Marsh,
Tonozzi, Konda, & Gormley, 2017). Non-reporting is a recognised problem. Rates
from an on-line survey of EMS personnel in the U.S. (Heick, 2009) were very different
from those derived from analysis of U.S. national data (Cutter & Jordan, 2004). Cutter
and Jordan (2004) reported that of all respondents, 29% experienced an injury in the
previous year and 64% reported multiple injuries; with only 32.4% of the 145
respondents not reporting an injury.
Injury rates
Injury rates also vary by gender. In a review of work-related musculoskeletal
disorders in Swedish ambulance personnel (Aasa, Barnekow-Bergkvist, Angquist, &
Brulin, 2005), females reported a higher incidence of lower back disorders (30%) than
males (10%). It was proposed that this higher incidence of musculoskeletal injuries in
females was related to ambulance vehicles being designed for males, and insufficient
arm muscle strength in females to match the physical demands of work tasks (Aasa,
Barnekow-Bergkvist, et al., 2005; Fairbanks, Caplan, Bishop, Marks, & Shah, 2007).
These differences in injury rates by gender may also relate to underreporting by men,
as masculinity has been shown to negatively impact mental health and acts as a barrier
to health seeking behaviour (Hoy, 2012).
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
In an analysis of workers compensation claims from nurses and ambulance officers
in all states of Australia (Gray & Collie, 2016) from 2008 through to 2014, it was reported
that ambulance officers have an accepted claim rate of 17.2/100 workers. This claim rate
was seven times that of all other workers, while the nurse accepted claim rate (2.5/100
workers) was the same as all other workers. Data obtained from the ambulance service
shows a similar pattern. Overall injury rates were 27.1/100 workers with females recording
higher injury rates in all but one age group (16-24) (QAS, 2016b). The overall lost time
injury rate was 9.7/100 workers with females scoring higher rates of lost time injuries in
all age groups and overall (10.8 for females vs. 8.8 for males). Higher reporting rates
amongst females were disproportionate to the overall male/female employee ratio (63.7
vs 32.3%) (QAS, 2016). For paramedics, the most common body regions for injuries are
the back 37% followed by the shoulder 9%, abdomen and pelvic area 4%, wrist 5% each,
knees 6%, and ankles 3%. Overall injury rates and lost time injury rates for the ambulance
service (QAS, 2016b) are shown in Figure 2.2. The peak for female injury rates occurs in
the 45-54 age group and may be related to a number of factors such as body composition
(obesity and muscle mass) and bone mineral density (Tirosh et al., 2015; Lloyd et al.,
2016). This increased rate for females compared to males needs to be investigated further,
as male injury rates decline as ambulance workers age.
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Literature review
Abbreviations: IR = Injury rate, LTI = Lost time injury rate
Figure 2-2. Overall and LTI Rates (QAS, 2016b)
Reported injury rates for EMS workers from several studies and public documents
are summarised in Table 4.2-1 (Aasa, Barnekow-Bergkvist, Angquist, & Brulin, 2005;
Maguire, B. J., Hunting, Guidotti, & Smith, 2005; Reichard & Jackson, 2010; Studnek,
Jonathan R., Crawford, Wilkins, & Pennell, 2010; Reichard, Marsh, Tonozzi, Konda, &
Gormley, 2017). The types of injury reported by AOP were also variable and the self-
reported and derived data discussion focuses more on physical injuries as these were more
overt and measurable. However, there was also considerable concern for psychological
injury derived from the nature of ambulance work. Additionally, there was growing
evidence to indicate an association between physical and mental health (Correll et al.,
2017; McMahon et al., 2017; Stubbs et al., 2017).
0
10
20
30
40
50
60
16‐24 25‐34 35‐44 45‐54 55‐64 Total
Rate/100FTE
Age in years grouped
Male IR
Females IR
Overall IR
Male LTI
Female LTI
Overall LTI
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Table 2.2-1 EMS Injury Rates
Outcome variable Injury rate/100
FTE
LTIFR Location Potential Causation
Factors
Overall1 34 97.8 U.S. Not reported
Overall2 253 39.8 Aus. Not reported
Average4 N/R 7 Aus. Not reported
Back5 30 Fem/10 Male U.S. Psychological demands
Worry about work
Awkward postures
Heavy lifting
Neck/Shoulder6 33 Fem/7 Male U.S.
Lower back or leg
pain7
Overall 50
31 Fem/59 Male
U.S. JS
Prior back problems
Poor/fair health
Back8 18 U.S. JS
Poor/fair health
≥ 30 years
Overall9 4.9 U.S. Physical demands
LTI rate10 8.1 U.S. call volume
Urban
Hx. of back
ED treated IR11 8.6 U.S. Body motion
Harmful substances
Injury rate12 8.0 Aus. Muscular stress
Abbreviations: JS = Job satisfaction, Hx = history, N/R = not recorded, Inj. = injury, Fem = female, ↑= increase, U.S. = United States, Aus = Australia, ≥ = greater than & equal to, IR = injury rate, LTI = lost time injury.
1 (Maguire, B. J. et al., 2005) 2 Work Cover Qld 2013 3 This injury rate is calculated using the QAS Injury and Incident surveillance system (LTI & non-LTI). This includes all personnel in the QAS as at April 2013. It is estimated that if the Injury rate was calculated for operational personnel only it would be approximately 29/100. 4 SWA 5 (Aasa, Barnekow-Bergkvist, et al., 2005) 6 (Aasa, Barnekow-Bergkvist, et al., 2005) 7 (Aasa, Barnekow-Bergkvist, et al., 2005) 8 (Studnek, J. R., Bentley, et al., 2010) 9 (Reichard & Jackson, 2010) 10 (Studnek, J. R. et al., 2007) 11 (Reichard et al., 2017) 12 (Maguire, B.J. et al., 2014)
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Literature review
Work related musculoskeletal disorders
In a retrospective analysis of patients with chronic lower back pain (CLBP)
matched by age, gender and location compared to others without CLPB; those with
CLPB had a higher co-morbidity including depression (13.0% vs. 6.1%), anxiety
(8.0% vs. 3.4%) and sleep disorders (10% vs.3.4%) (Gore, Sadosky, Stacey, Tai, &
Leslie, 2012). Findings from an analysis of both male and female ambulance officers
in Sweden indicated that psychological issues were associated with neck/shoulder and
lower back complaints of females (Aasa, Brulin, Angquist, & Barnekow-Bergkvist,
2005). In males, all musculoskeletal disorders were significantly associated with
psychological issues and lack of social support (Aasa, Barnekow-Bergkvist, Angquist,
& Brulin, 2005). This is a very important issue and data was sought in the Ambulance
Health Survey 2015 (AHS 2015) in relation to back injuries, psychological issues,
mental health disorders and sleep that could substantiate these results. It adds
momentum to the theory that a reactive OHS system is inadequate for AOP.
Work-related musculoskeletal disorders for paramedics have been identified in
Melbourne, Australia as the costliest OHS problem. In a study of six organisations
including one ambulance service and two hospitals, using a Physical Hazards Scale
and the Work Assessment Organisation Questionnaire, psychosocial hazards were
identified as a significant contributor to work-related musculoskeletal injuries
(WRMI) (Oakman & Chan, 2015). This was supported by another study in Victoria,
Australia of workers’ compensation claims from 2003 to 2012 amongst paramedics
and nurses. Paramedics were identified as having an incidence of lower back injuries
and mental health disorders 13 times greater than nurses. Although this research did
not link musculoskeletal injuries to mental health, it did describe the incidence of
musculoskeletal injuries and mental health disorders as higher than any other health
care workers (Roberts et al., 2015).
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Injuries and the working environment
It is well established that the work environment influences the rate and pattern
of injuries (Dembe, Erickson, Delbos, & Banks, 2005; Crowe et al., 2018). However,
the type of injury and the causes of those injuries differ in a national context.
According to Cutter and Jordan (2004), physical assaults were the most common
reported injury in health care professions in the U.S. at 12.9%. However, Reichard and
Jackson (2010) described the physical demands of emergency responders (police, fire
and ambulance) in the U.S. as the leading cause of injuries in this group of workers. A
telephone survey of previously injured EMS workers in the U.S. identified lifting,
carrying or transferring as the most common causes of an injury (Reichard et al., 2017).
In an examination of work-related injuries of EMS workers in Turkey, motor vehicle
accidents (31.9%), needle stick injuries (16.0%), ocular exposure to bodily fluids
(15.4%) and other sharp injuries (9.8%) were identified as the common sources of
injury (Yilmaz, Serinken, Dal, Yaylacı, and Karcioglu, 2016).
Transportation related injuries remain common and were often associated with
emergency driving conditions. In a retrospective study of ambulance crashes over 11
years, using data from the U.S. National Health and Transport Safety System (NHTSS)
(1987 to 1997), Kahn, Pirrallo, and Kuhn (2001) described the rate of injuries for every
100,000 miles driven as nearly 15 times higher for ambulances driving under lights
and sirens than those without lights and sirens. Despite no benefit to patient outcomes
being shown, there is continued use of a lights and sirens protocol in ambulance
services throughout the world, causing risks to workers and patients (Murray, B. &
Kue, 2017). In two Australian studies, almost half of paramedic respondents admitted
to falling asleep whilst driving (Sofianopoulos et al., 2012) and 10% feeling
dangerously sleepy (Archer, 2012). It was also reported by paramedics that seat belts
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Literature review
were used approximately 50% of the time in the rear of ambulance vehicles in the U.S.
(Johnson, Lindholm, & Dowd, 2006).
The patterns and rates of fatalities and injuries underestimate the extent of the
problem and subsequently, analysis of incidents that may not result in injury could
provide a more comprehensive overview of the risk profile. Heinrich, Petersen, Roos,
Brown, and Hazlett (1980) described the accident ratio triangle as a relationship
between near misses and injury accidents. In addition, a survey of 6,700 safety
professionals by Bird and Germain (2004), produced a more detailed version of this
relationship triangle. Data was retrieved from the ambulance service OHS database
from 1 July 2012 until 16 April 2013. The relationships between (Heinrich, Petersen,
Roos, Brown, & Hazlett, 1980; Bird, F. & Germain, 2004) and ambulance service data
are described in Figure 2.3. The data has been adjusted so that each hierarchy has a
common denominator of 300 near misses. However, a problem in comparing these
relationships is the definition of what is a minor and major injury. Consequently, there
may be some variances because of the researcher’s understanding of this issue. There
were zero fatalities in 2012-13 in the ambulance service. Figure 2.3 describes an
increased risk of equipment damage and injuries in an ambulance service compared to
previous modelling (Heinrich et al., 1980; Bird, F. & Germain, 2004).
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Figure 2-3. Ratio of Near Misses to Injuries from Three Models
The causes of fatalities, injuries and near-miss incidents are complex and no one
model can be universally applicable (Reason, J, Hollnagel, & Paries, 2006). Whilst
never intended as a model for accident analysis, the Swiss Cheese Model (SCM)
proposes five potential causes of workplace accidents (Reason, James, 1990). These
include poor line management defences and decisions, psychological precursors of
unsafe acts, unsafe acts and inadequate defence (Reason, James, 1990). The causes of
injury-accidents may be different from those that involve fatalities. Similarly, the
‘injury-accidents’ may differ from ‘near misses’. A comprehensive approach to
analysis of causation should also include analysis of near miss incidents as it is not
known which incidents have the potential to become injury or even fatality accidents
(Anderson, M. & Denkl, 2010; Reason, James, 2016). This is a critical issue, as the
collection of near miss incidents is haphazard in an ambulance service especially in a
busy urban environment. However, it remains to be seen how any organisation can
encourage more reporting of near miss incidents whilst the influence of safety culture
is not understood (Goh, Y. M., 2017; Layne, Nemeth, Mueller, & Martin, 2019).
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Literature review
Influence of safety culture
This section shows a more complex interaction of safety culture, assistance, near
miss reporting and organisational support. Focussing on near miss incidents allows an
organisation to adopt a more proactive approach to identifying potential weaknesses
in the safety management systems before an injury occurs (Patterson, Huang, et al.,
2010; Gnoni & Saleh, 2017). However, an analysis of causation in all incidents
including ‘near misses’ depends on a culture of safety within the organisation.
Safety culture includes beliefs, values and attitudes to the importance of safety
within a workplace (Queensland, 2013). It is sometimes known as ‘the way we do
things around here’ and is implicit in all aspects of safety, including health (Kirwan,
Reader, & Parand, 2018). In a cross-sectional survey to determine the association
between EMS workplace safety culture and provider or patient safety outcomes,
Weaver et al. (2012) showed 11 to 32% of occupational injuries and accidents in the
Emergency Medical Services were not reported. The Emergency Medical Services
Safety Attitudes Questionnaire (EMS-SAQ) was administered across 61 agencies in
North America and found the OHS culture varied from service to service, from
position to position and with the levels of demand (Patterson, Huang, et al., 2010).
Additionally, Guldenmund (2007) reported that the value of OHS in the
organisation was largely determined at the organisational level. That is, if the leaders
exhibit safe and healthy behaviours and attitudes at an organisational and personal
level, this behaviour will encourage common boundaries between workers and
management. However, safety does depend on the daily experiences of the worker as
was shown by Weaver et al. (2012), who demonstrated EMS workers experience fewer
injuries when organisations take health and safety seriously. In addition, when the
vision of safety was unreliable or not sustained by leaders, the OHS climate was
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
regarded as being ineffective (AbuAlRub, Gharaibeh, & Bashayreh, 2012; Chew
Abdullah, 2013).
OHS in the ambulance service has always been considered of improving safety
culture and in a reactive sense of assisting AOP after they were injured. This creates
doubt about the efficacy of the reactive approach to OHS and suggests a more complex
interaction that may predispose AOP to injuries and is shown in the next section to
have a relationship with mental and physical health. In addition, it suggests a more
proactive approach is needed, that includes preemployment testing, psychological
interventions, worker wellbeing and leadership improvements (Leitao Alexandre,
2015; Bayram, Ünğan, & Ardıç, 2017)
2.2.2 Physical and Mental Health
Despite considerable anecdotal speculation as to the likely impact of the nature
and context of ambulance work on mental and physical health and wellbeing, there
was limited evidence to support this perception. Any such impacts were likely to be
socially, culturally and organisationally determined and thus, difficult to generalise.
For example, a cross sectional study of Danish ambulance personnel and fire-fighters
(Hansen, Rasmussen, Kyed, Nielsen, & Andersen, 2012), identified paramedics as
having half the prevalence of poor self-rated health of the general population (5% vs.
10%) but a higher proportion (42% vs. 29%) of musculoskeletal pain. These results
are consistent with a Norwegian study on ambulance personnel where depression and
anxiety were described as less than the general population (Sterud, Hem, Ekeberg, &
Lau, 2008a).
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Literature review
Other occupations
There is evidence of an association between physical and mental health drawn
from other occupational environments (Goh, J., Pfeffer, Zenios, & Rajpal, 2015;
Pohling, Buruck, Jungbauer, & Leiter, 2016). In a review of the association between
mental disorders and subsequent chronic health conditions across 17 countries, mental
disorders were associated with an increased risk of a wide range of physical and
chronic conditions including heart disease, stroke, cancer, diabetes, hypertension,
asthma, chronic obstructive pulmonary disease (COPD), peptic ulcers, arthritis and
chronic neck or back pain (Scott, Lim, Al-Hamzawi, & et al., 2016). Early onset of
CVD (Scott et al., 2013), metabolic syndrome (Mitchell et al., 2011) and reduced life
expectancy (Wahlbeck, Westman, Nordentoft, Gissler, & Laursen, 2011) have also
been associated with mental health disorders. Whilst there are no known studies on the
relationship between mental and physical health in AOP, a cross sectional survey of
Lithuanian nurses (n = 748) provided some insight into the health of other health care
professionals. Low self-reported health was associated with mental distress, low
physical activity and a low sense of coherence (it may not work out as well as
expected) (Malinauskiene, Leisyte, Romualdas, & Kirtiklyte, 2011). These outcomes
have relevance for AOP, given the reported high rates of psychological distress and
mental health disorders in other emergency service workers (Petrie et al., 2018).
Factors that contribute to poor physical and mental health
In a systematic review of factors that contribute to depression in the general
population, two protective factors (physical activity and quality of social interactions)
were reported (Pemberton & Tyszkiewicz, 2016). In addition, increased social
networks and relationships have been hypothesised as improving physical health
(Cohen, S. & Janicki-Deverts, 2009). Conversely, negative associations with social
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
relationships, including social loss and loneliness, have been shown to have
detrimental effects on physical health (Stroebe, Schut, & Stroebe, 2007). Some of the
key pathways to improving social relationships included achieving life goals, feelings
of control, optimism, purpose, trust and self-esteem (Cohen, S., 2004; Cohen, S. &
Lemay, 2007; Cohen, S. & Janicki-Deverts, 2009). Exercise and social relationships
have relevance for the nature of ambulance work, due to the reported low rates of
physical activity in AOP (Courtney, J. A., 2010; Courtney, J. A. et al., 2013) and the
known affects on social interactions in shift workers. Shariat, Bahri Mohd Tamrin,
Daneshjoo, and Sadeghi (2015) in a systematic review of the literature on the effect of
physical activity in the general population (Dinas, Koutedakis, and Flouris, 2011)
reported beneficial outcomes as effective as that of anti-depressant medications.
Analysis of data from the National Comorbidity Study in the U.S. (Goodwin, 2003),
showed an inverse relationship between the level of physical exercise and depression
(OR = 0.75) and anxiety disorders (OR = 0.64 – 0.78). Additionally, a longitudinal
study of British public servants showed that regular physical exercise was associated
with a reduced likelihood of depressive symptoms (Silva et al., 2012). There was also
evidence indicating that low to moderate and high levels of physical activity were
significantly associated with a protective effect for cognitive decline in patients with
dementia (Sofi et al., 2011). Consequently, it is not unreasonable to theorise that
increased levels of physical exercise in AOP would improve cognitive, physical and
mental health.
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Mood adjustment has also been linked to physical activity which can enhance
positive moods with higher levels of interest, excitement, enthusiasm, and alertness
when compared to people with low levels of physical activity (Pasco et al., 2011).
Regular low intensity aerobic exercise, 30 - 35 minutes, 3 - 5 days per week for 10 -
12 weeks, resulted in moderate increases of positive activated affect, which is
substantially energisation and pleasant moods (Reed, J. & Buck, 2009). Whilst
physical activity can improve cognitive functioning throughout life, being sedentary
(sitting whilst eating, working, during transport, watching television) has implications
for health outcomes such as all cause cardiovascular mortality, obesity, metabolic
disorders, cancer and psychosocial problems (Spruit, Assink, van Vugt, van der Put,
& Stams, 2016). The associations described above, between exercise and mental
health, are shown in Table 2.2-2.
Table 2.2-2 Effects of Physical Activity on Depression and Dementia
Disease Mechanism Exercise Type Depression ↑ self-efficacy Aerobic Improved locus of control Resistance ↓Anxiety ↑ self-esteem ↑ social engagement ↓ medication ↓ obesity & ↑ image Dementia ↑ cerebral blood flow Aerobic ↑ neurotropic factors ↑ neuron generation
Adapted from Fiatarone Singh (2012)
Physical exercise
Physical exercise and reduced sedentary behaviour are also associated with
improved quality of life (Kolt et al., 2017). In a randomised controlled trial of 430
postmenopausal women randomised to a non-exercise group (n = 92) and three
exercise groups, Martin, Church, Thompson, Earnest, and Blair (2009) concluded that
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
higher doses of exercise were associated with greater improvements in all aspects of
mental and physical quality of life (QoL). As research continues into the benefits of
exercise prescription for those with different chronic diseases e.g. heart failure, cancer
and multiple sclerosis, it has also been recognised that the ‘one size fits all approach’
may be deficient (Tsiga, Panagopoulou, & Niakas, 2015). Subsequently, this
prescription should vary with the level of comorbidity and exercise capacity, which
needs to be assessed and delivered by an accredited exercise physiologist (Gillam,
2015) via a referral from a general or specialist medical practitioner, who may not be
sufficiently trained to prescribe the right level of exercise. Support and encouragement
to exercise may be a useful approach to improve AOP health. However, this focus on
one area of an issue (such as physical exercise), may improving functioning, but
potentially ignores the factors (e.g. mental health, regular rest breaks, fatigue and
sleep) that lead to a reduction in physical exercise by AOP. The issue of physical
exercise for paramedics is a complex issue that requires consideration of location,
individual needs and the availability of appropriate support (Hunter, MacQuarrie,
Sheridan, High, & Waite, 2019).
2.2.3 Psychological Stress
Psychological stress is often cited as a significant cause of poor health and
wellbeing amongst ambulance personnel (Asbury et al., 2018; Varker et al., 2018).
However, despite the nature of ambulance work, there was variable evidence related
to the rate and nature of psychological stress and its impact on health status. Whilst
depression and anxiety are often linked when there was an associated physical event,
such as acute coronary syndrome (Huffman, Celano, & Januzzi, 2010), there was no
evidence that this relationship exists in AOP. On the other hand, Courtney, J. A. (2010)
showed that fatigue had the greatest link with mental health and sleep in both
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Literature review
metropolitan and rural paramedics in Victoria, Australia. This difficult and complex
relationship between stressors, health and wellbeing is explored further in the
following sections.
Mental health and psychological distress
An online survey of paramedics in a United Kingdom (U.K.) ambulance service
using the Post-Traumatic Diagnostic Scale showed that 22% of paramedics were
assessed as having PTSD, and 10 and 22% had clinical levels of depression and anxiety
respectively. The prevalence of PTSD in males (23%) was higher than females (15%)
(Bennett, Williams, Page, Hood, & Woollard, 2004) which is considerably higher than
the prevalence 4.4% (12 months) and 7.2% (lifetime) in the Australian population
(Cooper, Metcalf, & Phelps, 2014). In Australian workers the rate of PTSD is 11%
(SWA, 2013). These rates can vary up to 50% prevalence after exposure to
interpersonal trauma (Cooper et al., 2014). A study of 86 Canadian paramedics using
demographic questions, the Social Provision Scale (levels of social support) and the
Beck Depression Inventory, demonstrated that 25.5% of workers were in the high
range of post-traumatic symptoms and 8.1% were suffering moderate to high levels of
depression (Regehr, C., Goldberg, Glancy, & Knott, 2002). In a study of Polish
paramedics using the Impact of Events Scale-Revised, the rate of PTSD was found to
be 40% (females 64.3% and males 36.1%) (Rybojad, Aftyka, Baran, & Rzońca, 2016).
A systematic review of the global literature on EMS and other related populations e.g.
police and firefighters, concerning stress related occupational risk factors such as
alcohol and drug use, PTSD, types of stressors, social support, personal resources and
social characteristics, identified rates of PTSD as high as 20% in these emergency
service occupations (Donnelly, E. & Siebert, 2009). Additionally, a systematic review
into the mental health impact of first responders in Australia (including paramedics)
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
suggested ambulance personnel may be at high risk, and estimated prevalence rates of
11% for PTSD, 15% for depression, 15% for anxiety and 27% for psychological
distress (Petrie et al., 2018). Figure 2.2-3 describes the known prevalence of mental
health disorders in paramedics from a number of sources. While the rates of mental
health disorders vary, especially with PTSD there may be some anecdotal evidence as
to why. The ambulance service in this study has one of the most comprehensive
psychological support programs in the world (Scully, 2011; Shakespeare-Finch, J. E.,
Wehr, Kaiplinger, & Daley, 2014) and the developers of this program have travelled
extensively, helping national and international ambulance services introduce these
programs. Recent changes in this ambulance service may have helped in reducing the
development of PTSD by focusing on post traumatic growth rather than a reactive
approach once AOP develop symptoms of PTSD (Shakespeare-Finch, J. E. et al.,
2014; Shakespeare-Finch, J., Rees, & Armstrong, 2015; Guerrero, 2017; Shakespeare-
Finch, J. & Daley, 2017; Varker et al., 2017). In terms of AOP, stress reactions are
often perceived as related to exposure to critical incident stress. However, the evidence
suggests a more complex causation, including organisational and contextual issues.
For instance the high rates of PTSD exhibited in Figure 2-4 may be due to the lack of
training in managing ambulance stressors, poor hazard and risk controls, selecting the
right employee who may have greater resilience or the lack of support services that are
staffed by appropriately trained and understanding peers and professional mental
health workers (Shakespeare-Finch, J. E. et al., 2014; Shakespeare-Finch, J. et al.,
2015; Shakespeare-Finch, J. & Daley, 2017; Varker et al., 2017).
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Literature review
Abbreviations: QAS = Queensland Ambulance service; UK = United Kingdom; USA = United States of America; Aus GP = Australia general population; Neth = Netherlands; Ger = Germany; Pol = Poland. Adapted from: (Baumeister & Härter, 2007), QAS EAP database, (Bennett et al., 2004; ABS, 2009; Rybojad et al., 2016), (Kessler et al., 1994), SR = systematic review, (Petrie et al., 2018).
Figure 2-4. Prevalence of Mental Health Disorders in Paramedics
Ambulance related stressors
The results of an on-line survey using the Post Traumatic Disorder Checklist, the
EMS Chronic Stress Scales and the Critical Incident Stress Inventory for a Canadian
EMS service, identified stress being associated with the operational and organisational
elements experienced by ambulance personnel (Donnelly, E. A., Bradford, Davis,
Hedges, & Klingel, 2016). In a study of Norwegian ambulance personnel (n = 1180)
(Sterud, Hem, Lau, & Ekeberg, 2011), a broad range of survey tools were used to
identify the most common elements associated with mental stress. These stressors
included work demands, lack of control over work and poor support from managers,
(Sterud, Hem, Ekeberg, & Lau, 2008b).
0
5
10
15
20
25
30
35
40
45
Depression PTSD Anxiety
Prevalence of Mental Health Disorders
Aus GP QAS UK Ger Neth Pol U.S U.S2 U.S. SR
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Table 2.2-3 General and Ambulance Specific Stressors
General Organisational Stressors Ambulance Specific Stressors
Inadequate salary Hide feelings towards patients and relatives
Lack of opportunity for advancement
Insufficient personnel
Not being able to express opinions to
patients or relatives
Inadequate support by supervisor High job demands
Lack of recognition for good work Low job control
Fellow workers not doing their job Medical responsibility
Lack of participation in policy decisions Constant dealing with chronically ill people
Dealing with crisis situations Uncertainty about the scene
Negative attitude towards the organisation Incidents involving children
Personal insult from customer/colleague Incident with friend or relatives
Difficulty getting along with supervisor Occupational violence
Poorly motivated co-workers Heavy and awkward lifting
Noisy work area Working under difficult conditions
Frequent interruptions Working in bent or twisted conditions
Inadequate or poor-quality equipment Driving under difficult conditions
Excessive paperwork Shift work
Assignment of disagreeable duties Involuntary overtime
Meeting deadlines Lack of down time/rest breaks
Conflict with other departments Social isolation/desychronisation
Poor or inadequate decisions
Competition for advancement
Critical on-the-spot decisions
Assignment of increased responsibility
Assignment of new or unfamiliar duties
Covering work for another employee
Frequent changes & boring/demanding
activities
Working overtime
Periods of inactivity
Performing tasks not in job description
Insufficient personnel time
Collated from (van der Ploeg & Kleber, 2003; Sterud et al., 2008b; Arial, Gonik, Wild, & Danuser, 2010; Sterud et al., 2011)
The results indicated that job satisfaction was predicted by general work-related
stressors and health complaints were predicted by both general and ambulance specific
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Literature review
stressors. Arial, Wild, Benoit, Chouaniere, and Danuser (2011), in a survey of 333
ambulance service personnel from French speaking Switzerland related poor mental
health to over commitment and how well supervisors value their employee’s work.
These general and ambulance specific stressors are detailed in Table 2.2-3.
Table 2.2-4 Acute and Chronic Stressors in Ambulance
Acute Chronic
Dead children Operational
Medical emergencies Shift work
Severe accidents or injuries Risk of injury or illness
Acts of violence or threats Managing social life outside of work
Lack of support post a critical incident Poor nutrition
False or misleading information Fatigue
Suicide attempts Lack of understanding from family/friends
about work
Making friends outside the job
Negative comments from the public
Feeling like you were always on the job
Friends/family feel the effects of the stigma
associated with your job
Organisational
Feeling like different rules apply to different
people
Feeling like you always must prove yourself
to the organisation
Constant changes in policy/procedures
Poor communication
Staff shortages
Bureaucratic red tape
Lack of training on new equipment
Dealing with supervisors
Lack of resources
Leaders overemphasis the negatives
Collated from (van der Ploeg & Kleber, 2003; Sterud et al., 2008b; Sterud et al., 2011)
A longitudinal study of ambulance personnel in the Netherlands indicated that
acute and chronic workplace stressors and risk factors such as the social aspects of the
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
work environment, lack of support from supervisors and poor communication were
inversely related to long term employment in ambulance services (van der Ploeg &
Kleber, 2003). These stressors are described in Table 2.2-4.
Interviews with 14 spouses of paramedics on the effect of trauma on the partners
of paramedics (Regehr, C, 2005), found that chronic stressors may be exacerbated by
feelings of worth, as paramedics are highly trusted by the community at large13, but
with a low occupational status (“regarded as drivers”). A comparative qualitative study
of a United Kingdom (U.K.) ambulance service and Ambulance Service of New South
Wales (ASNSW) (Mahony, 2001), found that the intrinsic stressors paramedics
experience by working in these services were exacerbated or moderated by
organisational and contextual influences. Both the U.K. and ASNSW paramedic
participants reported ‘problems with management’ as the main stressor. The
overarching stressor was lack of control and the way in which work was organised.
Additionally, a government sponsored assessment of the ASNSW (Parker, R. et al.,
2008) consisting of an analysis of submissions from all levels of ambulance personnel
concluded that chronic stressors may have more to do with the way paramedics are
treated rather than the emergency work. Similarly, the findings of a survey of 125
Australian paramedics (Kirby, Shakespeare-Finch, & Palk, 2011), using the Post-
Traumatic Growth Inventory, the revised Impacts of Events and COPE scale to
examine the effectiveness of paramedic coping strategies, indicated that not all
strategies achieved positive outcomes and suggested the need for more effective
training and support to improve psychological well-being. This was supported by
13 Paramedics in Australia are consistently voted the most trusted profession by the Readers Digest
annual ‘Most Trusted Professions’ survey
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Literature review
Murray, J. (2016), who proposed psychological stress may be related to: 1) high
demand, 2) in the case of a lower workload, not getting enough work to become expert
in the field, 3) low levels of clinical autonomy, and 4) high organisational control in
Australian ambulance workplaces.
Stressor relationships
On the other hand, a Polish study of 100 paramedics (Rybojad et al., 2016), using
the authors own questionnaire and the revised Impact of Events Scale, found that apart
from the stressors associated with being exposed to acutely ill and injured people
(including children), there was no correlation with any workplace-based stressors to
PTSD. In addition, there was a consistent theme on stress in ambulance services and
its negative relationship with organisational support. For instance, PTSD was more
common in paramedics where there were no early and supportive interventions from
the employer (Rybojad et al., 2016). Emotional stability and perceptions of
organisational support were also shown to be inversely related to well-being in U.K.
paramedics (Soh, Zarola, Palaiou, & Furnham, 2016), and organisational and critical
incident stressors were significant predictors of PTSD (Donnelly, E. A. et al., 2016).
Additionally, poor mental health has been reported in situations where there was a
limited recognition and reward for work effort and contribution in ambulance services
(Arial et al., 2011).
This complex relationship between stressors was also influenced by the inherent
characteristics of the individual and their resilience. A study of ambulance personnel
(n = 490) in the U.K., identified job satisfaction, decreased stress and work
engagement were elements that affected the individual’s well-being and emotional
stability (Soh et al., 2016). Kukowski, King, and DeLongis (2016) used the Maslach
Burnout Inventory to describe low perceived esteem being associated with poor mental
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
health in Canadian paramedics, while self-reported PTSD was associated with lower
than average sleep quality and sense of personal accomplishment at work. In addition,
Donnelly, E. and Siebert (2009) in an earlier study of Canadian paramedics indicated
critical incident stressors, were exacerbated by shift work and linked to PTSD and that
work-related stressors (critical, operational and organisational) were highly correlated
to PTSD and high-risk alcohol and drug use. A study of Australian healthcare workers
[non–ambulance, (n = 125) and ambulance personnel, (n = 93) (84% paramedics)],
(Jimmieson, Tucker, and Walsh 2016), identified high levels of demands (emotional,
time and cognitive). These three demands were related to exacerbating stress and it
was shown that reducing one helped neutralise the effects of the remaining demands.
Emergency Medical Dispatcher’s stressors
Less well known were the relationships between EMDs and psychological stress
and whether this stress was like that of paramedics. Rates of PTSD for EMDs have not
been reported. However, the risk of PTSD in EMDs was reported as related to their
work (Pierce & Lilly, 2012; Lilly et al., 2016). EMDs are the first workers to hear of
an incident from often distressed or abusive callers and provide medical and
psychological support until paramedics arrive (Dunford, 2002). In a study using semi-
structured interviews, 25% of EMDs (n = 9) in a U.K. based emergency operations
centre felt that they were being overloaded and undervalued (Coxon et al., 2016). A
study of 60 EMDs in the Queensland Ambulance Service (QAS) reported lack of social
support and shift work were predictors of PTSD (Shakespeare-Finch, Rees, &
Armstrong, 2015). Most, when they think of social support, think of receiving support,
however, Shakespeare-Finch and Obst (2011) described the importance of social
support in terms of giving and receiving.
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Literature review
A New Zealand review and analysis of 253 AOP including EMDs (10%)
indicated higher levels of work-related psychological well-being than police (n = 229)
or fire fighters (n = 241) (Brough, 2005a). Work-family conflict, neuroticism and job
satisfaction predicted work well-being in all three services for all types of workers.
Cortisol biomarkers of psychological distress (Hellhammer, Wüst, & Kudielka, 2009)
have been shown to be significantly higher in EMDs (n = 8), during day shifts when
compared with cortisol samples taken during their leisure time (Weibel, Gabrion,
Aussedat, & Kreutz, 2003).
Overweightness and stressors
Stress is known to have a relationship with several risk factors for poor physical
and mental health. In a meta-analysis of obesity and health related quality of life,
“Class III obese” and “overweight” individuals had a reduced mental quality of life
(Ul-Haq, Mackay, Fenwick, & Pell, 2013). Whereas, a longitudinal study of 6,755
individuals in the U.K. civil service followed from 1989 to 2009 (The Whitehall II
study), showed work related stress in this group of civil servants was associated with
Type 2 Diabetes in females and obese males (Heraclides, Chandola, Witte, & Brunner,
2012).
Whilst diet and exercise has been the mainstay of treating and preventing
obesity, it is thought other factors may play a role. For instance, increased BMI may
be related to hormonal activity. It has been suggested that acute stress will inhibit
eating (Klatzkin, Baldassaro, & Rashid, 2019), however as a person starts to recover
from this stress reaction, eating sensations are promoted, leading to increased food
intake. In chronic stress, high levels of hormones are constant and for a greater period
of time resulting in increased food and high calorie food intake (Foss & Dyrstad,
2011). A laboratory study of women of normal weight through to those who were
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
obese (n = 457), reported that increased levels of chronic and perceived stress were
associated with eating non-nutrious food, a greater drive to eat, including binge eating,
increased feelings of hunger and more ineffective attempts to control eating (Groesz
et al., 2012). Evidence is mounting of increased cortisol levels being a key player in
the obesity epidemic (van Rossum, 2017). (Hegg-Deloye et al., 2013) concluded that
obesity is prevalent amongst emergency workers and given the relationship between
stress and AOP (Bentley, Crawford, Wilkins, Fernandez, & Studnek, 2013; Rice,
Glass, Ogle, & Parsian, 2014), a conceptual model of obesity in ambulance is
presented in Figure 2.5.
↑ stress
↑ appetite
Unhealthy lifestyle
↑CVD and metabolic syndrome
↑ obesity
↑Chronic cortisol levels
Incudes: shift work, fatigue,
poor sleep, acute & chronic stress, poor diet, alcohol
Adapted from (van Rossum, 2017)
Figure 2-5. Conceptual Model – Obesity Relationships with AOP
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Literature review
Critical incident stress and sleep
Sterud et al. (2008a) reported AOP with depressive or anxiety symptoms
demonstrated a prevalence of disturbed sleep 3.4 times greater than the general
population in Norway. Hilton and Whiteford (2010), in a study of 60,556 participants
in Australia (this included health workers, however it was unknown if any AOP were
included in this research), reported higher psychological distress was associated with
higher rates of workplace accidents and failures. In interviews with 27 participants
including paramedics and EMDs, critical incident stress was shown to have an impact
on the health and well-being of paramedics and EMDs through sleep difficulties, angry
outbursts, irrationality and feelings of alienation (Gallagher & McGilloway, 2007).
These impacts don’t happen to all AOP, as the majority deal with the issues in a
cognitive and technical sense whilst maintaining some emotional distance (Regehr, C.,
Goldberg, & Hughes, 2002). However, this research also raised some concern with the
true nature of this protective strategy. Biological indicators of stress (heart rate and
salivary cortisol) and subjective measures of anxiety were measured in a video
simulation of policing. It was found that the biological response revealed previous
trauma with a lack of social support led to distress. It was hypothesised this can lead
to emotional detachment which can be reflected in interpersonal relationships (Regehr,
C., LeBlanc, Jelley, Barath, & Daciuk, 2007). Whealin and Ruzek (2008), P. 101, in a
discussion on Cognitive Behavioural Therapies summarised this issue with the
following comment: “Thus, exposure to work-related trauma continues to place a
proportion of employees at risk for stress related problems that can become chronic
mental health disorders and impair performance of key life roles”.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
2.2.4 Resilience and Benefit Finding
Impact of an individual’s personality characteristics
In a meta-analytic review of 87 cross sectional studies, Helgeson, Reynolds, &
Tomich (2006) described benefit finding (positive psychological growth) being related
to less depression and greater well-being. Seventy eight percent of respondent
paramedics reported normal levels of stress (Likert scale of 1-5, with one expressing
the respondents understanding of normal stress and five representing the respondents
view of extremely severe stress) existed in rural and regional ambulance services and
it was thought that working within smaller communities with local support may
provide some type of protective effect.
Individuals with high self-efficacy (a belief that one is able to exercise some
control over one’s situation) and who were more likely to reduce the impact of stressful
occasions on their quality of life may help ambulance personnel cope with stress (Prati,
Pietrantoni, & Cicognani, 2010; Kirby, Shakespeare-Finch, & Palk, 2011; Scully,
2011). Similarly, Prati et al. (2010) and Scully (2011) suggested specific training and
support services for AOP may reduce stress and build resilience by improving the
psychosocial skills of AOP.
Shakespeare-Finch, Gow, and Smith (2005) reviewed personality and coping
variables and found: 1) extraversion, 2) openness, 3) agreeability, 4)
conscientiousness, and 5) coping levels were all associated with perceptions of growth
and that intervention strategies may be more effective if they were tailored to differing
personalities. Similarly, LeBlanc et al. (2011) indicated anxiety and physiological
stress responses to clinical scenarios were related to coping styles of individuals and
these coping strategies were potentially modifiable. In a Ugandan study, Pietrantoni
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Literature review
and Prati (2008) suggested resilience (defined as self and collective efficacy and a
sense of community) following critical events was common among first responders,
which included EMS personnel. It was suggested that this resilience was protective of
first responder work related mental health.
Murray, J. (2016) indicated that many paramedics in Queensland develop
psychologically (post-traumatic growth) because of their experiences and that this
happens for several reasons, such as: 1) self-awareness, 2) education about stress, and
3) supportive and psychologically safe work environments. This was supported with
feedback from the ambulance service’s employee assistance program (EAP) where
PTSD rates (< 1%), depression rates (5.5%) and anxiety rates (6.9%) were lower than
the general population in Australia14. It should be noted that these are diagnosed mental
health disorders and there may be AOP who do not disclose their mental health issues
with their employer. It does not take into account measured psychological distress nor
those who feel depressed, as an example, but continue on with no mental health
support. Lack of resilience may lead to increased burnout which affects work-life
balance and quality of life and in turn may lead to increased turnover and sickness
absence. Subsequently, workers exhibited sign of survivor bias with personal, work
related, or patient related burnout and were more likely to leave emergency medical
services (EMS) in the U.S. (Crowe, 2016). In an Iranian study of paramedics, burnout
was adversely affected by younger age, single status, tobacco smoking, lower income,
longer work experience, longer shifts and the work status of the spouse. The latter may
relate solely to the Iranian culture as it has not been reported elsewhere (Khatiban,
Hosseini, Bikmoradi, Roshanaei, & Karampourian, 2015).
14 These figures were supplied by the Manager, QAS EAP in an interview on the 13 November 2016.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Organisational design and individual post traumatic growth
In a systematic review of the evidence for post traumatic growth in protective
services personnel (including ambulance), Paton (2005) examined issues that can be
influenced by organisational practices such as training, personality extraversion,
traumatic events, organisational difficulties and concluded that identifying the
mechanism by which post traumatic growth can be assured, the basis for a prevention
strategy can be developed. According to Gayton and Lovell (2012), paramedics
employed by the ambulance service with one to five plus years of experience exhibit
greater levels of resilience than first and second year undergraduate paramedical
students at university, and this resilience was significantly correlated with general
health and well-being. Clompus and Albarran (2016), in a qualitative study of a U.K.
ambulance service (n = 7), found that formal methods such as management, debriefing
and referral and informal methods such as peer support, family support, friends and
use of humour are used to manage emotions. The former is the type of prevention
strategy described by Murray, J. (2016) with a program for all personnel in an
ambulance service, on stress, resilience and growth. Whilst EAPs have been
traditionally based on an intervention model, relatively recent investigations and
subsequent understanding (Shakespeare-Finch, 2007; Kirby et al., 2011; Gayton &
Lovell, 2012; Williams et al., 2012) have seen a paradigm shift in regards prevention
and resilience building. Essential to well-being is physical health (Hernandez et al.,
2018), however none of the prevention strategies in the five references in this
paragraph, include a component aimed at improving physical health or linking mental
and physical health.
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Literature review
Health seeking behaviour
There was only one study found on health seeking behaviour in ambulance
personnel. Sterud et al. (2008a) compared the results of a survey of Norwegian
ambulance officers (n = 1,180) with the results of nation-wide population survey (n =
31,987). Ambulance officers contacted their General Practitioner (GP) significantly
less than the reference population (males 62 vs. 54% and females 80 vs 65%). Whilst
disturbed sleep was significantly related to more help seeking from a GP (Sterud, Hem,
Ekeberg, & Lau, 2008), it was the only factor for ambulance officers that were related
to seeking help from a psychologist or psychiatrist. There are many issues to be
considered in voluntary health seeking behaviour15 of an AOP when visiting a GP. The
GP may not know that the individual works in a high-risk occupation for exposure to
trauma. For example, Galeano (1996) determined that paramedics visiting their local
doctor routinely did not have their blood pressure checked. This is important, as
hypertension was more common in shift workers (Kales, Tsismenakis, Zhang, &
Soteriades, 2009; Tucker, Marqui, Folkard, Ansiau, & Esquirol, 2012).
Factors that influence help seeking behaviour have been described as gender,
marital status and education, with females being much more likely to seek help
(Thompson et al., 2016). In addition, 90% of mental health disorders were described
as being treated by Primary Care Physicians (PCPs)/General Practitioners (GP’s)
(Sterud et al., 2008a; Doherty & Kartalova-O'Doherty, 2010). Scott, Kokaua, and
Baxter (2011), argued that having a chronic medical (OR = 1.58) or pain (OR = 2.03)
15 Voluntary health seeking behaviour is whether the individual seeks the help or recognises the need to
seek help but does not.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
condition increased the likelihood of seeking help from a GP for a mental health
problem.
In contrast, a retrospective review of active duty members, post deployment, in
the U.S. Air Force (n = 200) reported that as self-reported mental health symptoms
increased, the rate of access to mental health services decreased (Visco, 2009). Barriers
to accessing mental health services were postulated as public and self-stigma (feeling
weak or cowardly), career concerns and their perceptions towards mental health
professionals. It was described in Robinson (2004) that those who needed the mental
health services the most, felt the greatest stigma. Men have a reluctance to seek help
and this reluctance can often be based on ‘traditional masculine behaviour’ (Galdas,
Cheater, & Marshall, 2005; Jarrett, Bellamy, & Adeyemi, 2007). Smith, Braunack-
Mayer, Wittert, and Warin (2008) identified four factors that shape help-seeking in
men such as: 1) time available to monitor health, 2) previous illness experiences, 3)
capacity to maintain everyday activities and tasks, and 4) perception of the severity of
health concerns. Thus, an important component of this research will be assessing the
factors that shape help-seeking behaviour in AOP.
Health risk awareness
It is hypothesised that help seeking behaviour is part of health risk awareness
and that health risk appraisals are an integral component of improving health seeking
behaviour and awareness. Rula and Hobgood (2010) demonstrated that awareness of
health risk improved when participants were exposed to multiple health risk appraisals.
Additionally, Chih-Wen, Hagen, Bender, Shoemaker, and Edington (2009) determined
that taking a health risk assessment at least once was associated with a positive change
in health status. Additionally, the “Working Well Trial” illustrated a model of
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Literature review
organisational determinants of effective worksite health promotion programs,
(Weiner, Lewis, & Linnan, 2009) which is described in Figure 2.6.
Adapted from (Weiner et al., 2009)
Figure 2-6. Influencers on Effective Worksite Wellness Programs
Conclusion
Whilst there is mounting evidence of the impact stress has on performance and
quality of life in AOP, it remains important that these relationships be explored further,
especially relative to physical quality of life. No dedicated validated surveys that
looked at stress in EMS were found during the literature search. There is a need for
further tools to be adapted to EMS with specific emphasis on AOP stress. The
development of a theoretical knowledge base as a guide in implementing a health
improvement program will be a critical element in advancing the health of AOP.
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2.3 Measures of Health Status
Against this backdrop of variable evidence on the status of AOP’s health, it is
challenging to measure health status. Additionally, this research identified only five
studies that reviewed the health status of paramedics (Boreham, Gamble, Wallace,
Cran, & Stevens, 1994; Sterud et al., 2006; Studnek, J. R., Bentley, et al., 2010; Pék
et al., 2013; OWHC, 2014). Whilst there are other studies that review health, these
studies will often review only one component, such as mental health (Pyper &
Paterson, 2016) or back injuries (Broniecki, Monica, Esterman, & Grantham, 2012).
Mostly, health status may be implied through surrogate measures including
absenteeism, presenteeism and job satisfaction.
Absenteeism
In a dissertation presented to the University of Tennessee (Rogerson, 2005), it
was reported that Tennessee emergency responders who had poor to fair self-reported
health status had the most absenteeism. A Canadian study in a municipal ambulance
service (n = 280) determined a link, for the first time, between communication
practices, organisational commitment and job satisfaction in paramedics, of which
absenteeism was one component (Jules & Bourque, 2009). Using the Male Role Norms
Inventory-Revised, a Danish study of ambulance personnel (n = 2,426) reported an
inverse relationship between increasing traditional male masculinity ideals and
sickness absence, and a direct relationship with sickness presence (Hansen, Lund, &
Labriola, 2011).
Tobacco smoking has also been implicated in absenteeism. Halpern, Shikiar,
Rentz, and Khan (2001) concluded that smokers had significantly greater absenteeism
than ‘never smokers’ and ‘former smokers’ showed a significant decline in
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absenteeism in the years following tobacco smoking cessation. In addition, a
systematic review of tobacco smoking and absenteeism in the workplace, Weng, Ali,
and Leonardi-Bee (2013) concluded that tobacco smokers had a 33% increase in the
risk of absenteeism against never smokers and a 19% increase in this risk as against
previous smokers.
Chronic conditions have also been associated with absenteeism. In a study of
7,797 respondents from 12,397 Dow employees (63% of the complete workforce)
Collins et al. (2005) examined allergies, arthritis or joint pain, asthma, back or neck
disorders, breathing disorders, depression, anxiety or emotional disorder, diabetes,
heart and circulatory problems, migraine and chronic headaches and stomach or bowel
disorders. Absenteeism by chronic condition was between 0.9 to 5.9 hours in a four-
week period and work impairment ranged from 17.8% to 36.4% decreased ability to
perform at work. For all chronic conditions, work impairment and absence cost were
estimated to be 10.7% of total labour costs for the Dow Company (Collins et al., 2005).
Work performance
Given the type of work carried out by AOP and the relationship between physical
activity and mental health, it would be a reasonable assumption that work performance
was improved by healthy paramedics. It was reported by Pronk et al. (2004) in a survey
of non-ambulance employees in the U.S. that improved levels of physical activity were
related to improvements in the quality of the work performed and overall job
performance. Improved cardiorespiratory fitness resulted in an increase in the quantity
of work performed and a reduction in the amount of effort used to do that work.
Obesity was associated with not getting along with co-workers and severe obesity was
related to a higher number of absent days from work. This relationship between work
performance and obesity was supported by a number of other studies (Hertz, 2004;
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Schmier, 2006; Jans, van den Heuvel, Hildebrandt, & Bongers, 2007), where it was
concluded that obese employees were absent for more days.
Presenteeism
Presenteeism, which describes those who are present for work when sick, has
also been associated with poor mental and physical health (Cooper & Dewe, 2008). It
has been regarded as having a greater cost to employers than absenteeism (Gosselin,
Lemyre, & Corneil, 2013). Collins et al. (2005) projected the costs associated with
presenteeism (performance-based work loss) were 6.8% of the total labour costs and
greatly exceeded the combined costs of absenteeism and medical treatment.
In a study (n = 2,348) across 110 organisations and four European nations, time
pressure at work related to sickness presence (Claes, 2011) and reducing time
pressures on employees reduced sickness presence. Importantly, this relates to
ambulance work, especially in relation to organisational Key Performance Indicators
(KPIs) which translate to the AOP in a way that increases stress, reduces the potential
for a regular break and extends work hours through involuntary overtime (van der
Ploeg & Kleber, 2003; Arial, Wild, Benoit, Chouaniere, & Danuser, 2011; Sterud,
Hem, Lau, & Ekeberg, 2011). In a systematic review of workplace-based health
promotion programs (WHP), it was reported that programs including organisational
leadership, health risk screening, individual health improvement programs and a
supportive workplace-based culture reduced presenteeism (Cancelliere, Cassidy,
Ammendolia, & Côté, 2011). Risk factors that contributed to presenteeism included
overweightness, poor diet, lack of exercise, high stress and poor relations with co-
workers and management. (Ishimaru, Kubo, Honno, Toyokuni, & Fujino, 2019) in a
study of Japanese paramedics (n = 254) demonstrated a positive relationship between
presenteeism and impaired work function and near misses.
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Absenteeism, presenteeism and co-morbidities
The literature reports a link between absenteeism and work-related injuries and
that presenteeism was of a greater cost. Campo and Darragh (2012) indicated moderate
Workplace Musculo-Skeletal Disorders (WMSD) were associated with higher levels
of presenteeism than minor WMSD. Both work impairment and work output were
affected by WMSD and it was suggested that costs associated with WMSD
presenteeism are substantial. Similarly, a large Australian investigation using data
from the Work Outcomes Research Cost-Benefit study (n = 78,000) from 59 large
companies representing 10 industry groups, reported there was greater productivity
loss when health conditions were co-morbid with psychological distress (Holden et
al., 2011). This raises the question of whether psychological distress was a mediating
factor in lost productivity and whether all health conditions and injuries should have a
specific psychological intervention to reduce the potential affects.
The other magnifier of absenteeism or presenteeism may be work overload.
Whilst it is difficult to determine how this is defined in ambulance, it could relate to
lack of formal rest breaks, end-of-shift overtime and overtime on days when off duty
staff should be recovering. Whilst workload was referred to in a number of studies on
ambulance personnel as heavy and increasing, it is difficult to quantify in anything but
the most general terms (e.g. case numbers per shift) (Archer, 2012; Coxon et al., 2016).
Complicating the understanding of work overload in ambulance services is the
anecdotal evidence that cases per shift had decreased from eight per shift on average
to currently five per shift. The primary reason for this has been suggested as delays in
off-loading patients at hospital. However, this doesn’t mean the AOP have less free
time, as they spend more time on each ‘case’ at hospitals waiting to off-load patients.
This introduces the spectre of increased workplace sedentary behaviour of paramedics.
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Job satisfaction
A review of fire (n = 231), police (n = 223) and AOPs (n = 232) in New Zealand,
Brough (2004) showed that organisational stressors (see Table 2.4) in ambulance
personnel were predictive of job satisfaction to a greater extent than exposure to
trauma. However, organisational stressors did not necessarily predict psychological
stress. Sterud et al. (2011) confirmed the relationship between organisational stressors
and job satisfaction, adding that lack of leader support was also a predictor of job
satisfaction and that the lack of co-worker’s support was predictive of psychological
distress. Additionally, Jules and Bourque (2009) suggested internal organisational
communication practices can be linked to job satisfaction and affective organisational
commitment only if the ambulance personnel had high rates of communication
satisfaction.
Furthermore, in an analysis of the 2005 LEADS survey data (Patterson, Moore,
Sanddal, Wingrove, & LaCroix, 2009), two variables were identified that were
correlated with “intent to leave” which were job satisfaction and opportunities for
advancement and pay and benefits. It is clear that ‘intent to leave’ is linked to job
satisfaction (Chapman, Blau, Pred, & Lopez, 2009; Patterson et al., 2009) and is
considered to be an ever growing problem in the U.S. where issues such as low pay
and benefits, little time to recover, low appreciation by employers and little
opportunity for advancement are raised (Brown, W. E., Jr., Dawson, & Levine, 2003).
In a survey of Montana U.S. paramedics regarding workforce retention (n = 1,008)
(Perkins, DeTienne, Fitzgerald, Hill, & Harwell, 2009), nine percent were considering
leaving EMS in the next year and 24% in the next five years. Amongst those
considering leaving the following reasons were given: pondering retirement (47%),
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career change (16%), family issues (16%), organisational issues (13%), work hours
(12%), job stress (11%), and pay/benefits (9%).
Finally, a systematic review and meta-analysis (n = 485 studies representing
267,995 individuals) on the measures of job satisfaction related to measures of
physical and mental health, (Faragher, Cass, & Cooper, 2005) found a strong
relationship between job satisfaction and mental problems (burnout, self-esteem,
depression and anxiety). Reisel, Probst, Chia, Maloles, and König (2010), in a study
of managers in the U.S. (n = 320), demonstrated job insecurity was negatively related
to job satisfaction and that it has both direct and indirect effects on work behaviours
and emotions.
Conclusion
It is important to now recognise the health status of AOP is broader than just
mental wellbeing and is connected to not only lifestyle, the work environment and
organisational factors but how AOP regard their own self-worth. Consequently,
ambulance services in Australia could consider supporting through confidential
assessments and intervention, the health of their personnel on a yearly basis that
include physical, mental and psychological components. Not unlike the current mental
health programs where personnel are able to utilise six free sessions with a
psychologist, access could be extended to include a range of health professionals that
include sleep physicians, exercise physiologists, physiotherapists and dieticians.
Reviews of working hours, fatigue systems and ensuring personnel have formal rest
breaks from work could be considered. Based on the Hierarchy of Controls, changing
the way people work (for example, reducing shift length) has the potential to improve
health through reduction in fatigue in comparison to AOP exercising further or
reducing their own fatigue (Morris & Cannady, 2019). It is more effective to change
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the workplace than trying to change the worker (Waters, Collins, Galinsky, & Caruso,
2006).
2.4 Factors Influencing Health and Wellbeing of AOP
The previous section identified what was known of the health and wellbeing of
AOP. Section 2.4 explores the factors that may influence that health status. While there
was considerable opinion and speculation in the grey literature, there was little solid
evidence as to the factors independently associated with injury or with poor physical
and mental health, or of the way in which those factors influence health status in the
peer reviewed literature.
A systematic review of 25 articles on the effects of paramedic jobs on health
status identified a number of risks associated with being a paramedic (Hegg-Deloye,
Sandrine et al., 2013). These risks were acute and chronic stress, obesity, sleep,
fatigue, CVD and cardiorespiratory fitness. Another systematic review in regard to
diseases associated with shift work in all workers identified immunological issues,
such as hypertension, metabolic syndrome, insomnia, CVD, obesity, depression and
cognitive impairment at work (Shariat, Bahri Mohd Tamrin, Daneshjoo, & Sadeghi,
2015).
Whilst some of the risks may be related to shift work or shift work disorder,
other risks are not so clear. For example, (Orellana et al., 2016) reported 4.6% of EMS
personal to have nasal Methicillin-Resistant Staphylococcus Aureus (MRSA). Other
hazards identified specifically to EMS were manual handling and uncontrolled work
environments (Dropkin, Moline, Power, & Hyun, 2015), and especially, driving
(Maguire, Brian J., 2011). The factors associated with health status in ambulance
personnel may be broadly categorised into individual, factors related to the nature of
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ambulance work, the working environment and the organisational environment. The
following explores what is known about these domains and their influence on health
and wellbeing.
2.4.1 Individual Factors
As identified previously, AOP are commonly younger than the general
population and more likely in modern times to be women. As they remain in the
service, they tend to reflect population ageing characteristics with higher rates of
chronic disease and increasing health risk factors. The patterns are dissimilar in
different work categories which partly reflects the different roles and the older age of
people in supervisory or management roles. Little can be done about the impact of
ageing (which has positive and negative benefits) (Yaldiz, Fraccaroli, & Truxillo,
2017). The move to gender balance in the workforce has other advantages, such as
increased flexibility of organisations, a well-rounded workforce which is diverse and
has multi-dimensional interests (Hakim, 2016) and realising the potential of a
workforce with an improved work life balance and flexible work schedules (Stanfield,
Campbell, & Giles, 2004). These clearly outweigh any potential risks.
Obesity
Lifestyle choices, particularly when contributing to obesity, may impact on
health and wellbeing in AOP. Svedin et al., (2012) examined Swedish ambulance
officers with metabolic syndrome, obesity and those who exercised regularly, and
concluded that lifestyle factors, such as regular exercise, a good diet, maintaining
normal weight and job satisfaction could minimise the risk of CVD and metabolic
syndrome. Studnek, J. R., Bentley, et al. (2010) showed that low rates of physical
activity in EMS personnel in the U.S. were a significant contributor to obesity rates.
In a study of obesity related work limitations in a non-ambulance workforce in the
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U.S., Hertz (2004) identified the type, amount or quality of work that obese younger
workers have, are similar to middle age workers. As a consequence, these obesity
related limitations may include less effective CPR (Brachet, David, & Duseja, 2010;
Russo et al., 2011). There is however, limited research into the complex interactions
between risk factors and the prevalence of illness amongst ambulance personnel
(Broniecki, M., Esterman, May, & Grantham, 2010).
Physical exercise
A meta-analysis of the health benefits of physical exercise in the general
population suggested improvements in fall related injuries, depression and emotional
distress as well as reductions in the risk of breast cancer, CVD, diabetes, and colorectal
cancer (Nehrlich et al., 2006). Several studies have demonstrated relatively low rates
of independent physical activity amongst ambulance personnel (Boreham et al., 1994;
Galeano, 1996; Brown, W. E., Dickison, Misselbeck, & Levine, 2002). There appears
to be some difference between urban and rural paramedics. In a study of Australian
metropolitan paramedics (Courtney, J., Francis, & Paxton, 2010) using the
International Physical Activity Questionnaire, 14% less physical activity was reported
for general population participants in a 12-country study. A study on rural paramedics
(Courtney, James A. et al., 2013) found that they exercised less than comparative
community groups. Intuitively, improving physical fitness may be considered to
impact on the rates of injury and illness. However, (Broniecki, Monica et al., 2012)
reported that improving physical fitness of ambulance officers was not associated with
any reduction in rates of injury or illness.
Diet
In one of the few studies on paramedic diet, Anstey, Tweedie, and Lord (2016)
described paramedics in Queensland as having long periods of not eating or
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opportunistic eating and that these habits were influenced by the environment in which
paramedics’ work. Consumption of fast and take away food has been implicated in
weight gain through high energy densities and glycaemic loads and large portion sizes
(Rosenheck, 2008). In a review of the evidence in relation to meal timings, it was
suggested that meal timing has metabolic effects that may influence body weight
(Lomangino, 2013). Finally, the type of nutrition; particularly the consumption of fruit
and vegetables has an association with a range of conditions including Type 2 Diabetes
(Carter, Gray, Troughton, Khunti, & Davies, 2010), CVD and cancer (Manoharan &
Jothipriya, 2016).
Healthy food choices may not be available to paramedics who take a rest break
away from their station, as some were reluctant to take prepared food in ambulance
vehicles. As a result of irregular breaks, paramedics may eat quickly and at irregular
intervals. Patterson et al. (2014) described paramedics as having very ad hoc eating
habits and behaviours because of shift work. Regular meal times are known to
positively influence the excess intake of food (Jakubowicz, Froy, Wainstein, & Boaz,
2012). In addition, shift work and poor sleep patterns have been shown to influence
food selection and meal timing and may be a causative factor in obesity and CVD rates
(Hegg-Deloye, Sandrine et al., 2013).
Conclusion
The literature suggests the benefits of enhancing the physical and mental
resilience of individuals within ambulance. This has three broad strategies which
include: selecting resilient individuals for the work (Bentley et al., 2013), preparing
them for the work through education and training (Makhoul, Sinden, MacPhee, &
Fischer, 2016), and sustaining resilience during their working life (Gayton & Lovell,
2012).
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2.4.2 Pre-Employment testing
A whole of working life approach to health surveillance ensures workers have
the physical and mental capacity (Hasle, 2017) to match work demands and are
carrying out work within their limitations. This should begin at the recruitment stage,
where individuals are selected only if they have the requisite physical and
psychological capacity to undertake the work and that they are not unnecessarily
exposed to greater risk of injury because of a non-matching of worker capacity and
work demands and managing risk to reduce demands on aging workers. The concept
described in Figure 2.7 is important when considering the implications for policy
makers that are described in chapter six and shows that work ability changes as
workers age and changes are needed at the individual and especially the organisational
level to maintain worker effectiveness.
The Richmond Ambulance Authority in the U.S. conducts pre-hire physical
agility testing including a computer-based evaluation of a candidate’s musculoskeletal
strength and likelihood of failure and has reported reduced injury claims of 45% (EMS,
2013) as a result. A systematic review on pre-employment physical testing as a
predictor of musculoskeletal injuries in paramedics, identified that physical fitness,
gender and age, were associated with a high rate of injury however, there was little
evidence to quantify the relationship (Jenkins, Smith, Stewart, & Kamphuis, 2016).
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Taken from (Parker, Anthony W. & Worringham, 2004)
Figure 2-7. Whole of Working Life Approach to Health Surveillance.
Effective medical and work-related screening processes are essential in
identifying potential high-risk factors for OHS injuries and illness in AOP; however,
the efficacy of these practices remain in doubt (D. Chapman, 2007; Drewitz-Chesney,
2012; Thornton & Sayers, 2014; Kukowski, King, & DeLongis, 2016). Potential risk
factors for paramedics identified in relation to musculoskeletal injuries include
conceptual, intuitive and anxious personalities, hypermobile joints, self-limited weight
lifting, played less sport, or exercised less (Broniecki, M., Esterman, May, &
Grantham, 2011). Predicting mental capacity was similarly unclear. However, Regehr,
C., Goldberg, Glancy, et al. (2002) identified that personality traits characterised by
egocentricity, suspiciousness, hostility and manipulation were associated with mental
health leave. In addition, a systematic review of personality traits for emergency
services personnel, found that conscientiousness, whilst protective for PTSD, may also
put personnel at risk of burnout (Mirhaghi, Mirhaghi, Oshio, & Sarabian, 2016).
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James, Reneman, and Gross (2016) suggested that testing for these factors using a
functional capacity evaluation approach, may match a person’s physical and mental
ability to the occupational demands of AOP and provide a baseline measurement of an
ambulance employee’s capacity to participate in ambulance work. However, the
efficacy of the assessment is only as good as the ability to assess work demands
(Leijten et al., 2015).
Conclusion
It was unclear which personality was better suited to be a paramedic. There was
no consistent screening device, nor any agreement as to the ‘ideal’ physical and mental
characteristics required. It is possible that overt risk through the presence of either
physical or mental illness may impair an individual’s capacity and increase their risk.
Beyond that, any attempt to presume an ideal physical or mental resilience may be
considered discriminatory and subject to flawed and biased judgement.
2.4.3 Education and Training
No single piece of equipment or training program has been identified as effective
in reducing the most common physiological and psychological injuries in AOP.
Consistently, the literature that describes multiple approaches aimed at improving
psychological and physical resilience, have been shown to be successful in health care
workers (Brown, W. E., Jr. et al., 2003; Verbeek et al., 2012). The transfer of education
to universities has shifted much of the training of paramedics (at least) to external and
thus pre-employment agencies. Most curricula do address elements of safety including,
safe manual handling procedures and healthy lifestyles. However, there was little
evidence of the effectiveness of specific resilience training (Wild et al., 2018).
Broniecki, Monica et al. (2012) found no association between individuals who had
recent manual handling training and injury rate or claim rate. In contrast, Okada, Ishii,
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Nakata, and Nakayama (2005) in a study of Japanese paramedics, found that only 8.2%
of the respondents who reported lower back injuries had received any instruction on
relieving physical stress (i.e. posture, ergonomics and how to avoid or minimise
physical stress). The transformation of paramedic training to universities in many
countries has resulted in greater screening for and development of intellectual capacity.
However, universities have not screened for physical or mental capacity.
2.4.4 The Nature of Ambulance Work
Ambulance work (particularly that of paramedics), involves exposure to some
of life’s most challenging scenarios, in an environment which is not possible to control.
Highly disturbing and emotionally charged incidents can be confronting, particularly
when they are repetitive (Morales, McEachern, MacPhee, & Fischer, 2016; Behnke,
Rojas, Karrasch, Hitzler, & Kolassa, 2019). Increasingly, AOP operate in an
environment of growing workload, injuries, fatigue and high demand for clinical
accuracy and an uncontrolled safety environment (Weaver, Wang, Fairbanks, &
Patterson, 2012; Courtney, James A., Francis, & Paxton, 2013; Roberts, Sim, Black,
& Smith, 2015). Although paramedic employment is regarded as physically active,
they may also be exposed to periods of sedentary activity (Coffey, Macphee, Socha,
& Fischer, 2016).
Additionally, equipment must be carried, often at the same time as a patient.
Consequently, paramedics have to carry heavy loads, although this may be mitigated
with the use of appropriate load reduction strategies (such as using shoulder straps),
which may reduce heart rate variability and cortisol concentration leading to a
reduction in CVD through a reduction in stress (Karlsson, Niemelä, Jonsson, &
Törnhage, 2016). Work related fatigue was described by Sluiter, de Croon, Meijman,
and Frings-Dresen (2003), P. 62, as: “the short-term effect of a working day and an
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intermediate variable between work demands and the development of subjective health
complaints and sickness absence”. Given the nature of ambulance work, it is not
unreasonable to assume fatigue in ambulance work may be significant. How AOP have
managed this fatigue has depended on educational strategies and knowledge about age
and the occupation specific effects of fatigue.
The lack of formal rest breaks during the work schedule of paramedics may
influence injuries of the back, neck or shoulder and increase fatigue (Broniecki,
Esterman, & Grantham, 2012). Unfortunately, the nature of ambulance work and the
persistent and often unexpected requests for urgent assistance, impact negatively on
the access to formal rest breaks. However, strategies such as ‘encouraging workers to
take breaks’, can lead to positive long term occupational health effects and reduce
fatigue (Zacher, Brailsford, & Parker, 2014).
2.4.5 Occupational Violence
Occupational violence is an emerging issue in ambulance services. An analysis
of injury reports from paramedics and firefighters in an urban U.S. system reported an
assault rate of 4%; 79% of assaults were against paramedics and 59% were deliberate
(Mechem, Dickinson, Shofer, & Jaslow, 2002). A Swedish study (Petzäll, Tällberg,
Lundin, & Suserud, 2011) reported that 66% of paramedics had experienced threats or
violence during their work. A study of first responders from rescue stations in Slovenia
(Gabrovec, 2015), identified that 49.6% reported physical abuse, 26.8% suffered
injuries inflicted by patients and 24.4% experienced sexual harassment. In a
longitudinal study of EMS providers in the U.S., the majority of EMS professionals
reported they or their work partner had been assaulted (Bentley & Levine, 2016).
Bigham et al. (2014), in a study of Canadian paramedics, identified that 75% reported
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violence including verbal (67%), intimidation (41%), physical assault (26%), sexual
harassment (14%) and sexual assault (3%).
Brough (2005b) categorised occupational violence amongst paramedics on a six-
point scale of: 1) serious verbal abuse, 2) minor verbal abuse, 3) minor verbal threats,
4) threat of sexual assault, 5) sexual assault, and 6) physical assault with a dangerous
weapon. (Brough, 2005) also noted that violent incidents were predictive of adverse
levels of job satisfaction and that frequent verbal violence was the primary predictor
of job satisfaction and psychological strain. The number of paramedics, who report
occupational violence in the ambulance service which was studied, has steadily
increased (QAS, 2016a) and is shown in Figure 2.8. It should be noted that the rate of
deliberate physical attack is larger than the rate of verbal attacks and is increasing at a
greater rate than verbal attacks.
(QAS, 2016b)
Figure 2-8. Occupational Violence Rates in the Ambulance Service.
A study of ambulance cases in southern California, was able to assign factors
predictive of violent behaviour including police presence, gang members, perceived
0
50
100
150
200
250
300
Count
Fiscal year
Deliberate PhysicalAttack
Verbal Threat
Accidental Contact
Total
Linear (DeliberatePhysical Attack)
Linear (Verbal Threat)
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psychiatric disorder, presence of alcohol or drug use, gender, patient and hour of day
(Grange & Corbett, 2002). Similarly, a Slovenian study found higher rates of
occupational violence against female paramedics (Gabrovec, 2015), as did Arnetz and
Arnetz (2001) who suggested females were more likely to be the victims of sexual
harassment or assault. Gender (female) was the only predictor of intimidation, sexual
harassment and sexual assault in paramedics (Koritsas, Boyle, & Coles, 2009).
However, the QAS Paramedic Safety Taskforce final report identified that the count
of deliberate physical attack and verbal threats for females was less than males (QAS,
2016a).
The difference in rates of occupational violence reported in the literature was
dramatic and relates to the cultural context and how the data was collected. Paramedics
who have greater frequency of contact (e.g. urban environments) (Koritsas et al.,
2009), were more likely to report higher rates of occupational violence, compared with
rural environments. There was a lack of consistency of survey methods and data
collection by agencies throughout the world. Some assessments reported results for a
particular period of time, while others looked at violence over the lifetime of a
paramedic (Grange & Corbett, 2002; Petzäll et al., 2011). The literature varied with
the ambulance service under study reporting raw data and rates per 1000 incidents
(QAS, 2016a) and others reporting rates per respondent population or rates per
paramedic population (Maguire, Brian J, O'meara, O'neill, & Brightwell, 2018).
Paramedic students, despite 32.6% being exposed to violence on clinical
placement, were reluctant to report occupational violence for fear it would jeopardise
their chances of obtaining a job (Boyle & McKenna, 2017). In addition, violence
against ambulance personnel may be greater than has been reported as paramedics may
regard some aspects of the violence as insignificant and part of the job (Maguire, Brian
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J et al., 2018). This was supported by other findings where 65% of assaulted
emergency department personnel and 43% of health care workers did not report an
occupational violence incident (Findorff, McGovern, Wall, & Gerberich, 2005). In
conclusion, Maguire, Brian J et al. (2018) indicated there was no evidentiary basis for
any programs to decrease occupational violence against paramedics and that there was
an urgent need for more research into this issue.
2.4.6 The Nature of the Working Environment
Progressive changes in work ability are ongoing throughout life. By considering
work ability and its relationship with other factors, such as exercise, sleep, workload
and task level, the complexity of the OHS equation increases (Airila, Hakanen,
Punakallio, Lusa, & Luukkonen, 2012). The work environment in ambulance is
diverse and often difficult to control. Some AOP, such as EMDs have largely sedentary
roles and even paramedics spend considerable proportions of their time in sedentary
positions whilst at computers, caring for patients, completing paper work or driving.
At times, their work environment is the patient support compartment of the ambulance
vehicle, while at other times it can be in patient’s homes, public places or in difficult
(and dangerous) locations such as crash scenes. Thus, the environment is difficult to
‘control’ in an OHS sense and so paramedics must moderate risk through preparedness
and through modification of work practices to accommodate unpredictable and
unmanageable sites. The lack of control influences practical interventions.
Shift work
Most paramedics and EMDs in urban areas work a 24-hour rotating roster. It is
well known that shift work has physiological, psychological and psychosocial effects
as a result of disruption to the normal sleep-wake cycle (Raether, 2003). Shift work
has also been known to affect social and quality of life (Wright, Bogan, & Wyatt,
2013) and shift workers were more likely to have extra accidents and sickness absence
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(Ohayon, Lemoine, Arnaud-Briant, & Dreyfus, 2002). A systematic review reported
that shift workers were more likely to be at risk of weight gain and glucose intolerance
(Mander, Winer, & Walker, 2017). The Nurses’ Health Study II (NHS II) in the U.S.,
(Ramin et al., 2015) reported night shift workers had an increased risk of cancer and
CVD, higher rates of obesity, caffeine and calorie intake, and were more likely to be
current smokers and have shorter sleep durations than never night shift workers.
Additionally, a declaration by the International Agency for Research on Cancer in
2007 suggested that shift work is a probable Class 2A human carcinogen (Stevens et
al., 2011).
Two studies from Victoria, Australia used a modified version of the Standard
Shift Work Index and found that shift working paramedics in both metropolitan and
rural areas were at increased risk of fatigue, depression and poor-quality sleep
(Courtney, J. et al., 2010; Courtney, James A. et al., 2013). A further Victorian study
of paramedics found that 10% of participants had excessive sleepiness, 29% had
nodded off whilst driving and 68% had poor sleep quality (Archer, 2012). A literature
review (Sofianopoulos et al., 2012) on the effects of shift work on paramedics
concluded that shift work has physical and psychological health and well-being effects
that can impact both work and personal life. These same studies demonstrated less
physical activity than a comparison study of physical activity levels in 12 countries;
72% were reported to be poor sleepers, and 28.86% reported chronic fatigue
(Courtney, J. et al., 2010; Courtney, James A. et al., 2013). Similar proportions of
paramedics in both metropolitan and rural areas were regarded as poor sleepers;
however, the rural cohort demonstrated significantly poorer sleep quality. This was a
counter intuitive result as the metropolitan study participants worked a roster that
consisted of two 10-hour day shifts, 24 hours off, two by 14-hour night shifts followed
by four 24-hour periods off work (10/14 roster), whilst only 50% of the rural
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participants worked this roster. Therefore, workload for the rural paramedics would be
less than that of metropolitan paramedics and should allow greater opportunity for
napping (Baulk et al., 2007). However, on-call rosters may pose their own challenges
with poor sleep and chronic fatigue (Nicol & Botterill, 2004).
Shift work disorder (SWD), which is more severe than the normal sleep
disturbances associated with shift work, is a clinically recognised condition, diagnosed
by the presence of excessive sleepiness and/or insomnia for ≥ one month during which
the worker is performing shift work (Krause et al., 2017). However, not all shift
workers develop SWD, however the reasons why remain unclear. According to Drake
(2010) the reasons behind susceptibility to SWD include vulnerability to insomnia,
sensitivity to sleep loss or variation within the circadian system that is often heritable.
Shift intolerant versus shift tolerant workers have a circadian cycle that is longer or
shorter than 24 hours, indicative of circadian desychronisation and an inability to adapt
to a shift work schedule (Reinberg & Ashkenazi, 2008). A study on melatonin rhythms
has shown that some workers were not able to adapt their circadian rhythms to the
pattern of sleep required by shift work (Blask, 2009). In addition, a shift work
simulation study of the first night shift (Santhi, Horowitz, Duffy, & Czeisler, 2007)
found the response times in tests of visual selective attention were significantly
affected. After 17 to 19 hours without sleep, performance of some participants was
worse than those with 0.05% Blood Alcohol Content (BAC) and response speeds were
up to 50% slower (Williamson, Feyer, Friswell, & Finlay-Brown, 2000).
The impact and cost of additional and extended shift hours is well documented
in the literature (Dembe, Erickson, Delbos, & Banks, 2005; Knauth, 2007) and has
been examined at a national level in the United States (Caruso, Hitchcock, Dick,
Russo, & Schmit, 2004). One study demonstrated that working at least 12 hours per
day was associated with a 37% increased hazard rate and 60 hours per week was
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
associated with a 23% increased hazard rate. Every additional five hours over 40 hours
per week was associated with an average increase of 0.7 injuries per 100 hours worked
and every additional 2 hours per day over 8 hours was associated with an average
increase of 1.2 injuries per 100 worker hours (Dembe et al., 2005).
Shift work has also been shown to be associated with illness. A 2004 review of
extended hours in the U.S. demonstrated higher risk of myocardial infarction
associated with 61 hours per week (Caruso et al., 2004). Relationships between shift
work and hypertension, obesity, tobacco smoking and alcohol use was inconclusive,
nonetheless, increased morbidity and mortality was reported in eight out of 12 studies
(Caruso et al., 2004). The potential effects of extended shift hours are summarised in
Table 2.4-1.
Table 2.4-1 Potential Negative and Positive Effects of Extended Shift Hours
Potential Negative Effects Impact on
Potential Positive Effects
Impact on
accidents on & off the job W&P travel time P length & quality sleep P cost P Sleepiness P time with family P alertness P time for socialising P fatigue P time for domestic
duties P
Adverse effects on performance
W&P satisfaction with working hours
P
Prolonged exposure to stress & toxins
P Fewer handovers W
Adverse effects on health P overtime P ± Absenteeism W Communication problems
with managers P
Problems driving home P
Adapted from (Knauth, 2007) Abbreviations: Work = W, Personal = P, ↑ = increased, ↓ = decreased.
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Sleep patterns and health
Poor sleep quality is a known risk factor of shift workers as it disrupts the
circadian rhythm and positions a shift worker to be out-of-step with the nature of sleep
and leads to a decrease in the quality and quantity of sleep (Charles et al., 2007).
Neufeld, Carney, Dolezal, Boland, and Cooper (2017) reported shift working EMTs
had more fragmented sleep. In a study of job strain, shift work and subclinical heart
disease in paramedics, Wong, Ostry, Demers, and Davies (2012) concluded, exposure
to job stressors may lead to early signs of heart disease.
Sleep duration has been linked to obesity and the timing of eating patterns
(Baron, Reid, Kern, & Zee, 2011). “Late Sleepers”, individuals who had a mid-point
of sleep after 5:30AM, had higher fast food, full sugar soft drinks and lower fruit and
vegetable consumption. Additionally, short sleep duration is linked to a greater risk of
obesity and increased mortality (Grandner, Hale, Moore, & Patel, 2010). Shift workers
who are sleep disturbed may make unhealthy choices in relation to nutrition and
snacking and the greater the sleep restriction the greater the odds of choosing a sweet
snack (Heath et al., 2012).
The longer-term effects of sleep restriction are less well known, but it was
suggested that chronic sleep deprivation, may alter the way people deal with
challenges and may negatively impact on the way they deal with stress. Whilst human
based studies are somewhat restricted, animal laboratory studies suggest that sleep
restriction may gradually change some brain systems in a manner that is like what is
seen in some stress related disorders such as depression. Krause et al. (2017), P. 404,
in a meta-analytical review of the literature, reported: “sleep abnormalities were
robustly observed in every major disorder of the brain, both neurological and
psychiatric”. A systematic review of the literature in relation to sleep duration and
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mortality (Manoharan & Jothipriya, 2016) and a population based 22 year follow up
study (Hublin, Partinen, Koskenvuo, & Kaprio, 2007), demonstrated that people with
both short and long-term sleep disturbance were at a higher risk of mortality.
There are a range of factors that influence the amount and quality of sleep. A
study of rail workers showed that shift type and having dependents were significant
predictors of sleep quality (Paterson, Dorrian, Clarkson, Darwent, & Ferguson, 2012).
Such factors support the importance of physical, social and cultural environments and
the complexity of this issue. Organisational changes may add to the already
documented sleep disorders of shift workers. A study of police officers in Sweden
suggested that extensive organisational changes such as downsizing, restructuring and
changing work procedures led to a small increase in sleep disturbances and negative
health effects (Greubel & Kecklund, 2011).
Fatigue and shift work
Discussing fatigue without debating sleep is to not recognise the inexorable link
between the two issues (Dawson, D. & McCulloch, 2005; Dawson, Drew, 2012).
Measuring fatigue is challenging as most reports include self-perceptions. Barnekow-
Bergkvist, Aasa, Ängquist, and Johansson (2004), suggested that significant predictors
of fatigue in ambulance paramedics in Sweden, included VO2 max, isometric back
endurance, one-leg rising, isokinetic knee flexion, shoulder extension, strength and
height. In a study of sleep quality and its association with fatigue in EMS workers,
Patterson, Suffoletto, Kupas, Weaver, and Hostler (2010) reported sleep and fatigue to
be at an unhealthy level and indicated overweightness (41.9%), obesity (42.7%), a
diagnosis of one or more health conditions (59.6%), and the presence of severe mental
and physical fatigue (44.5%), were associated with poor sleep quality and fatigue.
These findings are similar to results previously reported in Sterud et al. (2011).
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Fatigue can have clinical and operational impacts. Patterson, Weaver, Frank, et
al. (2012) used the Pittsburgh Sleep Quality Index, Chandler Fatigue Questionnaire
and the EMS Safety Inventory in a study of paramedics found that amongst the 55%
of respondents who were fatigued, 18% had experienced an injury (OR=1.9), 41%
reported a medical error (OR=2.2), and 90% reported safety compromising behaviour
(OR=3.6). In a survey of Victorian paramedics, 73% reported fatigue caused by
workload, 75% had made fatigue related errors, and 24% had less than five hours sleep
per night and 27% had a diagnosed medical condition linked to work-related fatigue
(Sofianopoulos et al., 2012). Williamson et al. (2011) suggested that fatigue can result
in errors especially where the task requires sustained attention and monotony.
Landrigan et al. (2004) showed a 36% increase in serious medical errors and nearly
six times increase in severe diagnostic errors amongst medical interns undertaking 24
hours or longer shifts. A study of 742,000 emergency medical incidents attended by
2,400 paramedics in the state of Mississippi, (Brachet et al., 2010) associated fatigue
with workplace performance, particularly at the end of a long shift. Further analysis of
the same data indicated that this reduction in performance may result in a 0.76%
increase in 30-day mortality of patients (Brachet, David, & Drechsler, 2012).
In an attempt to reduce the risks associated with fatigue, a number of Australian
Ambulance Services introduced a Fatigue Risk Management System (FRMS) based
on levels of control that were developed by the Centre for Sleep Research, University
of Adelaide (Dawson, D. & McCulloch, 2005; QAS, 2011). However, this approach
may be flawed for three reasons. First, (Patterson et al., 2017) suggested evidence-
based guidelines for Fatigue Risk Management (FRM) in EMS should be based on a
clinical model of Problem/Population, Intervention, Comparison, and Outcome
(PICO) that would help EMS systems evaluate the quality of the evidence and
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evidence-based guidelines for fatigue risk management. Second, the FRMS used in
some Australian ambulance services is based on a self-report model and the cost is
borne by the AOP. Time off is deducted from accrued sick leave if available and if this
leave is not accessible, then the person reporting fatigue may lose wages for lost time
or must substitute other leave as recompense. Third, there were some AOP who do
other paid work, including overtime in an ambulance service, and the prescriptive rules
of the FRMS jeopardise this work and subsequent financial advantage.
Work-related naps/rest periods have been shown to decrease work related errors,
improve performance, cognition and alertness (Garbarino et al., 2004; Smith-Coggins
et al., 2006) and, in some cases, improvements in self-satisfaction and reductions in
self-reported fatigue are described (Bonnefond et al., 2001). Caution should be
exercised with longer naps where some workers develop sleep inertia, a condition
where people feel groggy for up to two hours post a nap (Takahashi, Arito, & Fukuda,
1999). It has been suggested that naps ten to twenty minutes in duration may help
reduce sleep inertia (Brooks & Lack, 2006). Any napping strategies that may be
introduced should include the ability for a worker to take an uninterrupted sleep, as the
forced and unexpected awakening of sleep can lead to poorer quality of sleep (Shoji,
Saitoh, & Sakai, 1995). Whilst there was some suggestion that night-time naps during
a night shift are advantageous (Takeyama, Kubo, & Itani, 2005), there are clear
organisational disadvantages with scheduling and production and the timing of that
nap (Takahashi, Arito, & Fukuda, 1999). In this context, all AOP can’t have a nap at
the same time and the longer the nap, the greater the cost to the organisation
(Takeyama et al., 2009). However, there is no evidence to suggest this would be offset
with increases in performance of AOP and a reduction in morbidity or mortality of
patients.
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2.4.7 The Organisational Environment
Ambulance services are large and complex organisations with a high public
profile and organised on a semi-military style (top down direction, uniforms, rank
structure and badges, levels of expertise and a military style approach to governance).
They are often public utilities, highly identifiable and visible and are directly
accountable to the community through governments and both individual and
organisational cultures impose risk and impact on the level of risk taking behaviour
(Nordlöf, Wiitavaara, Winblad, Wijk, & Westerling, 2015). Normalisation of the
nature of the ambulance mission, the risk associated with aiding the community and
its associated consequences may be part of the work-related health culture in
ambulance (Wankhade, 2016). The attitudes to health and safety are related to the
culture within the organisation, which in turn was determined by the organisation’s
leadership (Petrie, Gayed, et al., 2018). In health services, safety culture tends to focus
more on patient safety than worker safety. In addition, there has been considerable
research into patient safety, and it has been suggested that meagre attitudes to patient
safety may reflect an inadequate mind-set to worker safety (Bigham et al., 2012;
Gallego, Westbrook, Dunn, & Braithwaite, 2012).
Nonetheless, there is an increasing body of evidence that safety culture can
reduce injury rates within ambulance services (Eliseo et al., 2012; Weaver et al.,
2012), with other industries also reporting a relationship between safety culture and
injuries. A cross-sectional survey in a large construction project in the U.S. (Probst,
Brubaker, & Barsotti, 2008), reported a positive safety culture was related to a lower
injury rate and a lower underreported injury rate. In the health context, a poor safety
culture was associated with medical errors or adverse events (Mardon, 2010) and a
fear of retribution (Atkinson, Fullick, Grindey, & Maclaren, 2008). This retribution,
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whether perceived or actual, may take many forms, such as investigations, restrictions
on clinical practice and discipline and may be related to a poor organisational response
rather than the reality of the demands associated with the clinical case.
Safety culture
A safety culture is related to the preparedness of workers to report incidents. For
instance, medication errors were reported only nine percent of the time in an
anonymous survey of 352 San Diego paramedics, with four percent of these errors
never reported in an organisational clinical quality improvement (CQI) process (Vilke
et al., 2007). A case-based study of EMS personnel described 44% (n = 27) as
including near misses (injuries that did not result in harm to the patient, however had
the potential to do so) and 56% (n = 34) involved adverse events (injures caused by
medical management) (Fairbanks et al., 2008). Underreporting may be reduced with
greater feedback on incident reports as well as improved training in patient safety
(Cano-del Pozo et al., 2014) and frequent advice and training, which was linked to
safe workplace-based actions (Eliseo et al., 2012).
Safety culture is also contextual. A study of the safety culture across the South
Australian health system reported poorer safety cultures were reported in metropolitan
ambulance (Gallego et al., 2012). In the ambulance service, there was no known
available data that reports on this issue and whilst several variations and mistakes in
medical treatments are identified through an audit process, there is no knowledge of
how extensive the problem of underreporting medical errors is and why. Additionally,
as ambulance work is undertaken in relative isolation from ongoing clinical care, it is
known that some EMS personnel may not recognise an adverse event has taken place,
predominately in relation to clinical judgement (Fairbanks et al., 2008). A culture of
health promotion in an organisation has an association with worksite safety culture, as
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do policies on safety attitudes and culture (Aldana et al., 2012). Accordingly, concern
for improved safety culture in the U.S. has resulted in the National Emergency
Services Advisory Committee (NEMSAC) recognising a culture of safety in EMS as
the top priority in a list of 80 priorities (NHTSA, 2013).
2.5 Health Improvement Strategies
Whilst paramedic safety is of concern for ambulance organisations, research into
health-related risk factors, occupational violence, safety culture, near-miss reporting,
quality improvement techniques, and human factors engineering is deficient (Bigham
et al., 2012). The focus is on safety rather than health even though ambulance systems
use the terminology of ’health and safety’ (Bentley & Levine, 2016). It is important to
recognise that organisational and work redesign and individual cognitive or human
factors can assist in improving the health and safety or workers. In addition, the
evidence for health improvement in ambulance is not at all clear and in comparison,
to other emergency services, ambulance work is different in its nature, volume and
intensity. It has been recognised that the majority of research into wellness in
emergency services was focused on trauma exposure and PTSD and that AOP are at
risk (Petrie et al., 2018). Subsequently, every state ambulance service in Australia has
programs of wellness and it is known that these programs focus on mental health and
psychological distress. In contrast, there are no known programs of wellness in
Australian ambulance services that have a broad combined focus of wellness that
includes physical, mental and psychological health.
In the ambulance service being researched, health promotion is available via the
state health department and it is believed that no recurring health assessments happen,
and personnel are usually only referred for further assessment if they are unable to
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carry out their duties. On the other hand, it is known that health promotion targeting
physical activity, diet and tobacco smoking achieves positive benefits (Emmons,
Linnan, Shadel, Marcus, & Abrams, 2000). In addition, one of the major components
of any health improvement program is knowing the health status of the potential
participants and how such a program can influence at an individual level (Rula &
Hobgood, 2010). Accordingly, Chih-Wen et al. (2009) showed that repeat engagement
in health risk assessments is a critical issue for health improvement.
Worksite health promotion programs may be effective as workers are a captured
audience, interventions can be offered repeatedly, and workplaces provide access to
large numbers of people that may not be reached by other means (Sorensen et al.,
1999). Preeminent intervention outcomes were found to occur when there was a
nutrition and physical activity component, dieticians were involved in nutrition
education, changes in healthy food options occurred and were advertised, feedback on
diet was given to participants, employees were involved in planning and managing
programs, and participants understood change theory (Steyn, W Parker, EV Lambert,
& Mchiza, 2009). The report on ‘Intervention on Diet and Physical Activity’ suggests
that the involvement of family in workplace-based interventions creates an added
benefit (WHO, 2009).
Scott, Mannion, Davies, and Marshall (2003) and Blake and Lloyd (2008)
suggested interventions in the workplace to improve individual health, need to be
targeted at people after their health status has been assessed, rather than at an
organisational level based on anonymous health surveys. Both the individual’s health
and the workplace health culture need to be addressed with a combined approach of
strong public health and vigorous healthy workplace interventions. Two programs to
improve the health of ambulance personnel stand out. A wellness intervention in a
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North Dublin ambulance service identified 97% with unhealthy lifestyle behaviours,
and 74% indicated they had made positive lifestyle changes after the intervention
(Devaney & Noone, 2008). Additionally, a recent study in the U.S. to improve health
in EMS personnel was successful in reducing diastolic blood pressure, heart rate,
cholesterol, body weight, body fat and increased participant’s ability to do push ups
and sit ups (Oglesbee et al., 2015). Moreover, a systematic review of worksite physical
activity programs supported the implementation of these programs in the workplace
and suggested that this would assist in reducing the risk of musculoskeletal injuries
(Proper et al., 2003). On the other hand, a systematic review of the cost effectiveness
of worksite physical activity or nutrition programs showed that their success was
dependent on the willingness of the decision makers to fund such programs (Johanna
et al., 2012).
Furthermore, a meta-analysis of organisational wellness programs designed to
support healthy behaviour in the workplace and improve health outcomes, concluded
that participation was associated with reduced absenteeism and increased job
satisfaction (Parks & Steelman, 2008). This study described two types of programs:
those that involved a fitness component either on or off site and comprehensive type
programs which also included an educational component. Absenteeism and staff
satisfaction (feeling good about oneself, improving the employee’s attitude towards
the organisation, reduced turnover, and enhanced recruiting) was identified as a reason
why organisations introduce wellness programs. In the same way, a meta-analysis of
interventional trials, Plat, Frings-Dresen, and Sluiter (2011) found only seven trials
where there was an attempt to measure effectiveness. These trials involved a range of
personnel in emergency response and only one of these was specific to ambulance. Of
these, six were physical interventions and one was psychological. All but one of these
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studies was post 2004 while the only ambulance study was published in 1991 (Gamble
et al., 1991).
Employee Health Management Programs (EHMP) in the U.S. were found to be
unrelated to performance and negatively related to absenteeism and that these
outcomes worsen if these programs were not voluntary (DeGroot & Kiker; Probst et
al., 2008). It should be noted that employers in the U.S. pay for the health insurance of
employees, so the motivation for improving health may be financial rather than
genuine concern for employee wellbeing and improving the health of the workplace.
It has been shown that worksite-based programs were costlier but more effective in
reducing body weight, cholesterol and CVD risk and that the benefits to employees
may not immediately translate to benefits for the organisation (Johanna et al., 2012).
Additionally, lower back injuries could be mitigated by introducing workplace training
and education on safe lifting (Makhoul, Sinden, MacPhee, & Fischer, 2016). Whilst
this contradicts previous literature about recent manual handling training not reducing
injuries and controlling injury risks in paramedics (Lim, Black, Shah, Sarker, &
Metcalfe, 2011). Makhoul et al. (2016) reported that generating more work from the
lower body relative to the trunk was more likely to decrease peak load in the lumbar
vertebrae of L4/5 and would inform the development of training and education to
control risks.
Table 2.5-1 describes the outcomes of the randomised control trials (RCT) and
non-randomised control trails (NRCT) in terms of cardio respiratory fitness (CRF),
muscle flexibility, muscle strength, body weight and composition criteria. A large
body of work has been completed on workplace fitness standards and the health of
U.S. firefighters and in some instances; this has included dual role
firefighter/paramedics. It was shown that workplace fitness standards and
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Literature review
interventions to improve workplace fitness, especially in relation to physical
interventions, improved CRF (Lin et al., 2010; McDonough, Phillips, & Twilbeck,
2015). The lasting message from a meta-analysis of EHMPs (DeGroot & Kiker, 2003)
is that they have to be continuous, preventative and include multiple elements related
to the needs of work demands, not just health promotion.
Table 2.5-1 Elements and Effectiveness of Workplace Physical Activity Programs in Relation to Cardio Respiratory Fitness
Element RCT NRCT Conclusion
Physical Activity 5 3 Strong evidence of a positive effect
CRF 3 6 Inconclusive evidence
Muscle Flex 4 (low quality) 4 Inconclusive evidence
Muscle Strength 1 4 Inconclusive evidence
Body weight 6 4 Inconclusive evidence
Body Comp 1 4 Inconclusive evidence
General health 3 3 Inconclusive evidence
Fatigue 2 (low quality) 0 Limited evidence
MSK Disorders 5 2 Strong evidence of a positive effect
Blood Pressure 1 3 No evidence
BSL 1 3 No evidence
Abbreviations: CRF = Cardio Respiratory Fitness, Flex = flexibility, Comp = composition, BSL = blood serum lipids, MSK = musculoskeletal, RCT = randomised control trial, NRCT = non-randomised control trials. Adapted from (Proper et al., 2003; Johanna et al., 2012).
2.6 Conclusion
The literature on health status, health risks, and the health culture of AOP and
ambulance services and how these elements interact and influence each other are
deficient. Additionally, the literature focuses on paramedics and there was little
evidence concerning EMDs, and no literature involving supervisor/managers in
ambulance.
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The creation of sustainable prevention programs that lead to improvement in
health of AOP requires awareness of how work-related factors can affect their health
including the rate of occupational injuries and chronic disease and how these rates
relate to risk factors such as shift work, sleep, fatigue, anxiety, diet and obesity.
Therefore, a more in depth understanding of the health status of AOP and of the factors
that appear to influence that status would help inform remedial strategies.
It is known from this literature review that injury rates for paramedics are higher
than the general population in Australia (Maguire, B.J. et al., 2014) and the U.S.
(Reichard et al., 2017). In addition, evidence exists of an association between mental
and physical health in a broader context (Scott et al., 2016). However, this association
was not evident in the literature related to ambulance services and furthermore, the
evidence in regards health being worse than the general population was variable
(Sterud et al., 2008b; Hansen et al., 2012). The wellness programs associated with
ambulance services in Australia focus on mental well-being. This approach was
appropriate given the evidence in relation to mental health and psychological distress
being consistently higher than the Australian population when considered in the
context of ambulance services (Petrie et al., 2018). However, the causative factors of
mental health disorders and psychological distress in AOP are little understood. In
contrast, the evidence in relation to causation, the relationship to chronic disease,
organisational factors, the work environment and lifestyle factors in ambulance
services is variable. Additionally, this evidence was more often related to shift work
than ambulance services (Shariat et al., 2015). This review identified three broad
elements that effect the health of AOP, which were individual characteristics, the
working and organisational environment and that health improvement strategies were
limited to mental health interventions.
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Literature review
This literature review identified gaps in the knowledge of the health status of
AOP and as such contributed to the development of the AHS 2015 and underpins the
research undertaken in this study. This literature review assisted in developing a mixed
methods research design using a backwards approach. Whilst a focus of this research
was the collection and analysis of data through the AHS 2015 and the semi-structured
interviews, the literature review demonstrated a lack of depth in the available research
designs and as such the research design was novel in its composition, including sound
research design principles, knowledge of the ambulance industry and AOP.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
3 Research Design
In progressing this research, an implicit theoretical perspective based on the
researcher’s knowledge of the ambulance industry was developed. It is counter
intuitive that an ambulance employee would not give thought to their own health. It
appears however, that this concept does not apply, and AOP consider mainly patient
health. Concepts, such as an individual’s understanding of their health are often linked
to domains that are easy to understand (Lakoff, 2003). The difficulty with
comprehending the health of AOP is that it is an abstract concept, coalesced with the
emergency service providers myth that they are invulnerable to the vagaries of
lifestyle, work, organisational and environmental factors that can contribute to poor
health. This has been demonstrated in relation to mental health (Petrie, 2018).
Although emergency service workers recognise the importance of their own health,
there seems to be a lack of knowledge of causation of the factors that impact on that
health and how to manage those factors when known e.g. stress (Rice, Glass, Ogle, &
Parsian, 2014).
A common theme in the examination of the health of AOP (primarily
paramedics) is the research that focuses on what we think was understood as causation
for poor health (mainly mental and psychological), rather than looking more broadly
and attempting to create models that predict health status in AOP in an individual and
organisational context. Consequently, the literature primarily describes well-being in the
context of AOP as mental health and psychological distress (Varker et al., 2017; Petrie et
al., 2018) for an individual and related to the trauma of ambulance work. It rarely considers
lifestyle, the organisation of the work and the working and organisational environment.
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Research design
Mixed methods research studies have emerged as a way of combining
qualitative and quantitative research paradigms to better understand the research
problem and take advantage of their strengths and differences (Creswell, 2011). The
type of strategy depends on several factors; and for this research the strategy chosen
was based on an implicit theoretical perspective described in chapter two using a
sequence of quantitative followed by qualitative research. The quantitative data and
analyses were used to inform the qualitative research. Of the six approaches involved
in mixed methods studies 1) sequential explanatory strategy, 2) sequential exploratory
strategy, 3) sequential transformative strategy, 4) concurrent triangulation strategy, 5)
concurrent nested strategy, and 6) concurrent transformative strategy, the first was
chosen as the mixed methods approach for this research (Terrell, 2012). This was
chosen because of its fundamental natural order, flexibility and ability to recognise and
report patterns. The sequencing of this research is described in Figure 3.1.
Figure 3-1. Sequential Explanatory Strategy
The literature review provided information concerning different factors
associated with the health profile of AOP. This was used to inform the next phase of
the research program, which was the development of a survey, designed to provide
information on the health status of different categories of AOP. The survey was also
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
designed with a theoretical perspective of the multiple factors potentially influencing
health status and their relationship and impact on short and longer-term health
outcomes. These included, demographic, work, organisational, environmental and
lifestyle factors, all of which are associated with health risks and the design and
evaluation of health risk control solutions. This was then strategically combined with
a thematic analysis of semi-structured interviews for a more nuanced, contextualised
and collaborative understanding of the health of AOP in an ambulance service. It is
about their experience, how they feel and what their interpretation of concepts such as
‘regular rest breaks’ and ‘fatigue’ mean. This is unequivocally connected to the aim of
the research: ‘To explore the health status of ambulance operational personnel and to
develop a conceptual understanding that may inform policy development, management
and future research.’ This design, which was related to the hypotheses, aims and
objectives, creates a blueprint for the research through to a conceptual understanding
of the issue, implications, recommendations and a framework for the improvement of
the health of AOP, and is described in Figure 3.2.
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Research design
Adapted from (Schoonenboom, 2018)
Figure 3-2. Mixed Methods Design
3.1 Quantitative Methods
Data Collection
The principal primary data source of the research was termed the Ambulance
Health Survey 2015 (AHS 2015). The major component of the AHS 2015 originated
from the Australian Health Survey 2011-13 (Australian Government, 2011), and
consent to use components of the questionnaire was permitted by the Australian
Bureau of Statistics in December 2012. The Australian Health Survey 2011-13 was
the prime source of questions for the AHS 2015. There was no known validity and
reliability testing of the Australian Health Survey 2011-13 other than discussion on
how sampling variability and non-sampling errors were considered in terms of data
quality (ABS, 2013a). The majority of these items showed internal consistency in the
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
analysis of the AHS 2015 survey with Cronbach’s’ Alpha ranging from 0.540 to 0.938
and Mean Inter-Item Correlations ranging from 0.225 to 0.387. Use of this tool allowed
comparisons to be made between the Australian population and ambulance service
employees and to evaluate the representative nature of the survey findings.
The survey was modified to include questions related to sleep patterns, non-
clinical anxiety and fatigue relevant (with permission) to the ambulance population.
These questions were used in an earlier survey of an Australian ambulance population
(Parker, A.W. & Hubinger, 2003). Despite a comprehensive testing for face validity
by the original designer, an analysis of the reliability of the AHS 2015, showed the
component relating sleep to have low internal consistency with a Cronbach’s Alpha of
0.363 a Mean Inter-Item Correlation of 0.140.
The questionnaire included a personal interest component designed to identify
factors which may have a positive or negative influence when determining the major
health related interests and the required and unmet health needs of AOP. These
included rest breaks, barriers to physical activity and the use of wellness facilities.
These survey components were taken from Tompkins County, New York State, U.S.,
Worksite Wellness Employee Interest Survey (Tompkins County, 2012), and were
reproduced with permission by acknowledgement. This contributed to developing a
conceptual framework of understanding to ensure that efforts in relation to AOP health
are not only placed where needed but addresses the interests of the workers.
Additional survey components related to work-related health culture, job
satisfaction and performance were integrated into the AHS 2015. Four questions
concerning work-related health culture were included. The questions related to how
people stay healthy, individual attitudes and personal perceptions concerning health
whilst working and were chosen to help in understanding the work-related health
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Research design
culture in an ambulance service. These questions came from the Lifegain Health
Culture Audit, with permission of the Human Resource Institute, LLC.
The job satisfaction component of the AHS 2015 was taken from the WELCOA
job satisfaction survey (Bellington, 2014), which in 2013 was freely available to be
used with citing. This job satisfaction survey had not been previously validated. These
questions were chosen as the researcher, who has 40 years exposure to the industry,
using psychometric reasoning (ability, attitudes and personality traits) regarded the
components of this job satisfaction survey to represent AOP understanding of job
satisfaction.
To allow a comparison between performance, health status, risk factors and other
elements of the AHS 2015, four questions in regards work performance were also
included in this survey. These questions were related to the previous four weeks before
the survey was undertaken and were taken from the World Health Organisation, Health
and Performance Questionnaire: Revised (WHO, 2010).
All AOP in the ambulance organisation (4,169) were canvassed and asked to
complete the survey. The research examined AOP in three categories (paramedics,
EMDs and supervisor/managers) the majority of whom were shift workers. A sample
of 474 had been calculated as the minimum required for the AHS 2015 (which was
approximately 12% of Queensland Ambulance Service population). The
Commissioner of this ambulance service gave permission for the research to be
conducted and accepted Queensland University of Technology (QUT) ethical approval
- number 14000000936 and provided names, postal and email addresses of the
workforce.
Participants were provided with appropriate information via postal and email,
full consent was obtained using a unique code that will allow future research
comparisons and evaluation and therefore kept individual returns anonymous. The
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
survey included demographic descriptors which enabled comparison with known
population characteristics obtained from Australia’s Health Survey 2011-13 (ABS,
2013b). QUTs online survey tool ‘Key Survey’ was used to store the data.
3.1.1 Determining Sample Size
The following assumptions were made (Israel, 1992 Reviewed 2009) in
determining sample size of the study population:
1. Sampling error of ± .05 (this was the range in which the true value of the
population lies).
2. Confidence level was 95% (95 out of 100 samples will have the true population
value within the range of precision of ± .05). This probability of committing a
Type I error (alpha (α) = a false negative) was the same as the level of
significance.
3. The degree of variability was 0.5, which was the maximum variability of the
population.
4. That the salience of the population was very high when the health of AOPs was to
be considered, a self-health check was involved, and the personal information was
reviewed by the participant and overall results published.
5. All workers were invited to participate and could complete the survey and
measures only once but with multiple entry times allowed and equipment was
available at all ambulance stations (this should minimise loss through not having
to travel and encourage participation as a team). Invitees who worked in operations
centres, which are normally at a location with an ambulance station, were
encouraged to utilise the station equipment for self-measures.
6. Reminders were sent out regularly and supervisors were asked to support and
encourage participation.
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7. The AHS 2015 could be completed in three different forms (paper based,
electronically using MS word and on line using QUT’s Key Survey tool) increasing
the flexibility for the participant.
8. That the ambulance population (in terms of age and physical health) are normally
distributed which reduces the probability of volunteer bias (e.g. employees who
value their health will be the only ones to participate).
A simple formula for an estimate of proportions to calculate sample size was
used, (Yamane, 1973) and is described in Equation One.
Equation 1: 𝒏 𝑵/𝟏 𝑵 𝒆 𝟐.
Where (n) was the sample size, (N) was the population size and (e) was the level
of precision. With an adjustment factor of 1.3 and an ambulance population of 4169,
then: Sample size (n) was 4169/1+4169 (0.05)2 = 365*1.3 = 474.
The original database was copied and only the duplicate database was drawn
upon for statistical analysis by SPSS. In that manner, the original data collection was
always available and secure.
3.1.2 Quantitative Data Input
Sixty one survey returns were received via email, with the remainder (602)
completed by respondents using direct entry into the online survey tool. Responses
received by e-mail were entered into Key Survey by the researcher. The results were
imported into SPSS Version 22, where a comprehensive data review took place. First,
a code book was developed, and data was named and screened for errors manually.
Where there was no entry in a field of a record, the missing value field was defined as
‘999’ in the variable view in SPSS. The codebook was continually updated as variables
were computed, and a synopsis of variable categorisation is provided in Appendix F,
Table 8.21.
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The data was then screened for errors and consistency. Apart from manually
checking the data for inconsistencies; histograms, bar graphs, and scatterplots were
used to assist in determining the distribution of the data, a summary of the distribution
of the scores of the data included missing values and the relationship between two
variables. Scatterplots were particularly useful in determining outliers in the data that
may be invalid values (e.g. values that were not possible, i.e. 26 hours of sitting in a
24-hour period) and inconsistent values (e.g. years in ambulance that were greater than
the age of the respondent). Frequencies were calculated for each categorical and
continuous variable, to check minimum and maximum values and whether they make
sense e.g. age and for valid and missing values. An example of this is where a
respondent worked, which was entered using a coding system used by the ambulance
service for station category. The researcher knew there was some confusion in relation
to this coding, so respondents were also asked to indicate their ‘station name’ and in
this manner, station category was able to be checked and corrected if needed.
Advice was also obtained from a statistician and further adjustments were made
to conform to known processes. For instance, ‘0’ should be ‘No’ and ‘1’ should be
‘Yes’. In addition, some of the coding had to be reversed to prevent response bias with
negatively worded items and bring consistency to all items in the survey. For instance,
a response of ‘All of the time’ should indicate a high score and a response of ‘None of
the time’ a low score. Using SPPS ‘Transform’ function, some variables were
collapsed into groups. For instance, age was collapsed into age groups defined by the
Australian Bureau of Statistics and the 17-element job satisfaction scale was collapsed
into five groups as defined by Bellington (2014). Other variables had to be calculated
from the original data, such as Body Mass Index and Blood Pressure, because weight,
height, systolic and diastolic blood pressure were all entered in the data set as a single
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variable. Employment type was categorised into three main types, e.g. EMDs,
Supervisor/managers (Officers in Charge, other supervisors and managers) and
Paramedics (Patient Transport Officers, Student paramedics, Advanced Care
Paramedics and Critical Care Paramedics) using QAS employment categories (QAS,
2015).
3.1.3 Quantitative Data Analysis
Data analysis was conducted using the SPSS Version 22. Types of data and
variables influenced the analysis undertaken. The different categorisation of the
variables is reported in Appendix F. Some of these variables have different
categorisations from the variable originally collected as they have been computed. For
instance, age was collected and categorised as numerically continuous variable. It was
computed into age groups so as comparisons could be made with Australian population
data and ‘age group’ was then regarded as a categorical ordinal variable.
Table 3.1-1 Examples of Different Data/Variable Types Collected
CATEGORICAL/QUALITATIVE Data that has a label (even though it may be coded using numbers) e.g. Gender; Language; Postcode; Occupation.
NUMERICAL/QUANTITATIVE Data that was naturally numbers e.g. weight and height.
Nominal Variables that have labels but no natural ordering such as Educational institutions; marital status; housing tenure.
Ordinal Variables that are a name or a label but have a natural ordering: age group; shift worker; frequency of check‐ups.
Count Number of dependants; time as a paramedic; hours of exercise.
Interval Variables where there was a requirement to rate a level of agreement ‐ exercise regularly (at least 3 times per week)?
Ratio BMI; hip/waist.
Discrete Examples are as above in Nominal, Ordinal and Count – these variables are not continuous.
Continuous Data that takes on any numerical value, not just whole numbers e.g., age; height, distance walked in 10 minutes.
Data was summarised by looking at frequency, mean and standard deviation or
relative frequency of observations in each category. For example, the frequency of
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respondents in each age group. Where possible, these frequencies were compared
against other available data, such as that from the Australian Health Survey results.
Statistical significance (p-value), (α) had a cut-off of 0.05. The cross-tabulation
analysis consisted of analysing every variable against each other variable and was used
to develop knowledge of the individual, work and organisational related factors that
influence the health status of AOP. Pearson’s Chi-square (χ2) test and an Odds Ratio
(OR) were calculated together with a 95% confidence interval. This was the prime tool
used to determine statistically significant associations (SSA) and was reported as, for
example [χ² (12, n = 422) = 39.388, p = .000]. This reads as chi-square, degrees of
freedom and sample size in parentheses followed by the significance level.
Associations that had no statistically significance were not reported. However
contextually important results, even if not statistically significant, for instance those
reported in relation to mental health in AOP, were included in the regression analysis,
to limit bias in the modelling. Odds ratio was only reported when the strength of an
association between variables was important. Chi-square and logistic regression were
also used to adjust for confounding variables. For instance, obesity against intent to
leave, adjusted for gender. The Cochran-Mantel-Haenszel chi-squared test was used
and logistic regression allowed the use of multiple variables at the same time.
Given the large number of variables and cross tabulations, the potential for Type
I and II errors was high. However, the risk of a Type I error was reduced by setting the
level of significance at 95% (α = 0.05). Many analyses reported a level of significance
that was less than 0.001, which reduces the chances of a Type I error even further. The
chances of committing a Type II error were reduced by calculating an appropriate
sample size (that was a sample size that was large enough to calculate a practical
difference, when one truly exists). The data collection was not closed until this sample
size calculation had been exceeded in terms of respondent numbers. Subsequently, a
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regression analysis plan was developed based on the five main constructs reported in
this research. The five dependent (outcome) variables were classified under health
status, chronic disease, organisational symptomology, caring for self and risk factors.
They are further described in Table3.1-2.
Table 3.1-2 Regression Analysis – Dependent Variables
Dependant Variables
Health Status
Chronic Disease
Organisational Symptomology
Caring for self
Risk Factors
SR Health Asthma Job satisfaction Fatigue Back injuries
MHD CVD Health culture Sleep Overweightness
K10 Cancer Consider leaving
BtE - Time
BP
Disability Diabetes Rest Breaks BtE - Energy
Exercise
LTC Arthritis Hours worked
Sitting
≥ three CD
Diet
Abbreviation: SR = self-reported, MHD = Mental health disorder, K10 = Kessler Psychological Distress Scale, LTC = Long term condition, CD = Chronic disease, BtE = Barriers to exercise, BP = blood pressure, CVD = cardiovascular disease.
Each of the independent variables was assessed for statistically significant
associations with the dependant variable and included in the regression analysis plan
in Appendix D if significant or important. Effect size was also calculated using Phi or
Cramer’s V correlation coefficients and the inclusion criteria was included in the
regression analysis plan. However, one last step was needed to bring these independent
elements into context. The researcher went through every included independent
variable and asked the question of whether this independent variable could possibly
predict the dependant variable based on the knowledge obtained from the literature
review. For instance, was job satisfaction a predictor of a long-term condition? The
final plan therefore included elements that were within the specified effect size and
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variables that may predict the dependent variable, or were contextually significant,
even though the effect size was small.
Internal consistency (reliability) was tested using Cronbach’s Alpha and where
the number of scales were less than 10, the Mean Inter-Item correlation was also
considered as Cronbach’s Alpha is sensitive to scales with fewer than 10 items (Briggs
& Cheek, 1986). This is outlined further in section 3.3.
Variables such as gender, age, level in the organisation were potential
confounding variables associated with health status. Gender, for instance was related
to the prevalence of cardiovascular risk factors and to the three population sub groups.
Ignoring gender in the analysis leads to a bias in the results and it was therefore
important to analyse males and females separately. Gender, age and employment type,
were included in all regression modelling and station category (workload), shift work,
education and relationship status where included were there was a significant effect
size, or they were contextually significant e.g. diabetes was not regarded as statistically
significant in developing the regression plan as it had a Phi < 0.30. However it was
included as it has an evidence based relationship to CVD (Kannel & McGee, 1979;
Schnell et al., 2019).
3.2 Qualitative Methods
This phase of the research adopts a non-mathematical approach that focuses on
the understanding people create from the experience of the work, knowledge of the
outcomes of the literature review and quantitative analysis of the AHS 2015 data. It
was hoped that it would provide a holistic description of how this research can
contribute to organisational processes which lead to the improvement of the health of
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AOP and was directly related to one of the sub questions: ‘What strategies may lead
to the improvement of health?’
This research used a quantitative/qualitative sequential model which led to a
more effective understanding and appropriate strategic approach for the improvement
of health of operational personnel in an ambulance service. The qualitative research
design used an ethnographical component (a portrait of ambulance operational
personnel) and combined this with an understanding of the organisational culture that
may affect this portrait. Consequently, this led to the development of a semi-structured
interview approach to gather the qualitative data necessary for the thematic analysis.
The semi-structured interview approach was approved by the Queensland University
of Technology’s, Higher Research Ethics Committee and included an approach email,
a consent form, a participant information sheet and semi-structured interview
questions (Appendix E).
Sampling considerations included purposive sampling to enhance data quality
by selecting those who understood the ambulance organisational processes, selecting
productive people with insight, identification of others who may contribute,
availability, time and resources. This resulted in the use of three sampling techniques
which included convenience, opportunistic and snowballing. A convenience sample
was suggested by the ambulance service and three communications personnel were
opportunistically recruited, one of whom was an operations room supervisor. Nine
interviews were conducted, and five of eight participants identified an additional
contributor. This person was interviewed as the researcher felt it would make a
significant contribution to the discussion. Two interviews involved executives with
expertise in human resources and resource capability, one interviewee was a director
with a speciality in education, two others were managers (with specialities in OHS and
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counselling) and one was a working paramedic. All interviewees, except for EMDs
and the OHS manager, originated from a paramedic background. This qualitative
approach has several characteristics (Merriam, 2002), such as:
1. Understanding the meaning of participants’ perspectives using their language
rather than some pre-existing theory.
2. Exploring the real-world ambulance setting and conscience if there was even
such a construct.
3. The context that was embedded in the data gathered and the influence that has
on the outcomes of the research.
4. A holistic understanding of the picture presented by the data and the ambulance
participant’s perspectives.
5. The researcher was the data collector rather than a survey and tries to
understand through talking and observing the ambulance participants. This
allows flexibility of the guided interview protocol and allows the interviewer
to follow leads and directions which might further assist to answer questions.
6. It was an attempt to understand how improvements can be made, why we need
to make improvements and under what circumstance should these
improvements be made.
7. An attempt to build on the theory and was abstract in nature as it measures
meanings rather than quantity, amount, intensity or frequency.
8. The data gathered was context specific as it was based on the semi-structured
interview questions.
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9. The semi-structured interview approach allows for flexibility and follow up
based on unexpected comments.
10. The selection was primarily purposeful, and the participants are co-contributors
to the outcomes of the research.
11. The meanings captured will include the perspective of the researcher who has
already interpreted the literature and the quantitative data collected.
The advantage of thematic analysis was that it allows understanding of the
interview data which is underpinned by their knowledge and informs the emergence
of themes. Themes were impacted by the researcher’s thinking about the quantitative
data analysis and the literature review and creating emerging links as the researcher
understands them (Green, 2013).
3.2.1 Qualitative Data Collection
This second phase of the research program used a semi-structured guided
interview data collection method to identify and make recommendations regarding
potential health and wellbeing programs for AOP. Personnel who participated in the
semi-structured interviews, included stakeholders from the ambulance service such as
managers, supervisors, paramedics and EMDs.
Initially, the ambulance service provided recommendations for involvement in a
focus group. The ambulance employees suggested by the ambulance service worked
in different locations, some worked shift work in both the communications centre and
on road as a paramedic, whilst others were executives. It proved impossible to gather
this group together and ethics approval was requested to conduct this qualitative
research using semi-structured interviews. Semi-structured interviews were chosen as
this process allows a mix of structured and unstructured questions including probing
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the participant on points of interest that were raised. Whilst the questions were
predetermined and overall topics for discussion were the same for all participants, the
order of questions varied depending on the responses of the participants. A deliberate
snowballing technique was used with each participant to identify others who may be
worthwhile interviewing. Face-to-face interviews were conducted and whilst it was
recognised that there may be conversational diversions as a result, it was considered
that this may also provide valuable information. It was also known that the timing,
question number and level of detail of the interview should consider the participants
work commitments and availability and hence the interview was scheduled for a one-
hour period. The documentation in regards this process is contained in Appendix E.
Initially, proposed participants were canvassed from the Research and
Evaluation Unit of the ambulance service and selected from individuals who expressed
an interest. Whilst there was some argument in relation to credibility based on the
convenience participants, this method was chosen based on the time and location of
participants. Selection of participants by the ambulance service involved personnel
with a variety of experiences and understanding of the operation of the service and
who can provide meaningful and non-biased opinions in relation to policy of varying
employment types. Each potential participant was emailed using the higher research
ethics committee (HREC) approved email, a participation information sheet and a
consent form. Participants were followed up by phone and email to arrange interviews
in person, which were conducted in the latter part ofn2017 and early 2018 and recorded
for transcription.
3.2.2 Qualitative Data Analysis
Thematic analysis was used because of its fundamental nature, flexibility
and ability to recognise and report patterns in the data (Boyatzis, 1998). This
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particular qualitative data analysis technique captures a theme or something
important about the data and allows the researcher judgement in determining
the theme which was not necessarily dependant on quantitative measures (e.g.
no participants talked about this important issue). Thematic analysis also
allows an inductive approach via means of coding the data without having to
fit it into a pre-existing framework. That is, the thematic approach used here
was data driven (Patton, 1990). A six-step method was used to analyse the
interview data and is presented in Table 3.2-1.
Table 3.2-1 Stages of the Thematic Analysis
Stages Description
1. Data familiarisation
Transcribe recorded interviews, checking the transcripts by the researcher and noting ideas.
2. Coding Coding data features, collating and weighing data.
3. Looking for themes Collating codes into potential themes.
4. Reviewing themes Review and check themes are related to codes and transcribed data – develop a thematic map.
5. Defining and naming themes
Generate clear definitions and names for each theme.
6. Interpreting and discussing
Extract examples and relate back to the literature and data analysis.
Adapted from (Braun & Clarke, 2006)
Reliability, validity and generalisability are another matter, as there was ongoing
debate about its relevance to qualitative research (Noble & Smith, 2015). However,
Lincoln and Guba (1985) offer an alternative, which consist of: truth value (validity),
consistency (reliability) and applicability (generalisability). This approach was used to
describe the strategies used in the qualitative research of this mixed methods research
to determine truth value, consistency and applicability, and is described in Table 3.2-
2.
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Table 3.2-2 Strategies used for Enhancing the Credibility of the Qualitative Research
Truth value Reflection of researcher’s perspectives:
o Discussion and decisions documented.
o Debriefing with two supervisors and a peer to uncover
biases/assumptions that may have influenced findings.
Representative nature of the findings:
o The nine participants were willing to share their
experiences/thoughts on the findings of the LR and AHS 2015.
o Semi-structured interview recordings allowed for revisiting the
data and remaining true to the interviewee’s accounts.
o Use of rich extracts from participants to assist in determining if
the final themes were true to their comments
o Clear presentation of participant’s perspectives.
o Participants invited to comment on the research findings.
Consistency Auditability:
o Clear and transparent description of the research process from
the outline, development of methods and reporting of findings.
o Use of the same semi-structured questions for all participants.
o Using notes from interviews and comments on transcribed
interviews to maintain cohesion of research objectives.
o Emerging themes discussed with a supervisor who had
qualitative research expertise, which allowed assumptions to be
challenged.
Applicability Application of findings:
o A variety of participants were selected to give meaning to the
results across the broad spectrum of ambulance personnel with
a multiplicity of experiences who understood the real-world
context.
Abbreviations: LR = literature review
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3.3 Reliability and Validity of the Survey Instrument
A small pilot study involving five paramedics was conducted in April 2014, to
help clarify the survey and the research conduct and to ensure relevance to the context
of the research. The intent of the survey and its construct was reported by the five
participants as positive. The detail included in the draft survey was described as ‘too
much’. Therefore, the draft was reviewed against the feedback, research question and
objectives of the study and reduced considerably.
3.3.1 Validity
Whilst face validity was only one measure of validity and is known as
superficial, because it is about what it appears to measure not actually what it does
measure. However, it may have a strong relationship to validity. For instance, this
research considered face validity to have a strong relationship as it appears to measure
what was considered important to AOP. Face validity is becoming increasingly
important as it involves the user in involvement of the instrument and its content
(Connell et al., 2018). In April 2015, a second pilot study to assess the face validity of
the revised questionnaire (now known as the AHS 2015) was conducted using
paramedics, one supervisor and an EMD (n = 9) as these would be representative of
primary users of the survey. The participants were made aware of the hypotheses, aims,
objectives and research questions for the AHS 2015 and the meaning and importance
of determining its validity. They were also advised on the procedures to be followed
for self-measures. They were requested to review the participant information sheet,
recruitment and reminder letters and the AHS 2015, followed by completion of the
questionnaire. Their feedback response was guided by five questions provided on
completion of the survey, which were provided in a simple yes/no format with room
for comments. These questions are outlined in Table 3.3-1.
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The survey could be completed by using the Key Survey Tool on-line, Microsoft
Word on a computer and manually after printing the questionnaire. A flexible tape
measure and LifePak 12 monitor/defibrillator were provided for self-measurement and
participants were asked to provide feedback on the efficacy of the self-measure
instructions. Three participants were assigned to complete the survey in each of these
mediums, with completion time estimated at 30 minutes. The researcher left the area
while the pilot trial participants completed the survey and self-measures. This was to
simulate realistic completion.
Table 3.3-1 Face Validity Questions
Questions Response Comment
1 Is the questionnaire valid – is the questionnaire
measuring what it is intended to measure?
Yes
No
2 Does it represent the content? (Does this formal
survey instrument make explicit the type of
information that is required)
Yes
No
3 Is it appropriate for the sample/population? Yes
No
4 Is the questionnaire comprehensive enough to collect
all the information needed to address the purpose and
goals of the research?
Yes
No
5 Does the instrument look like a questionnaire? Yes
No
Positive responses were received from all five questions with all participants
from the three mediums. Pilot trail participants who completed the survey manually,
together with conducting self-measures, felt that the time for completion was too long
(> 30 minutes) which will potentially reduce returns and introduce a non-response bias.
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The other six participants completed the survey and self-measure within 30 minutes.
The instructions for self-measures were gauged to be adequately efficacious.
3.3.2 Reliability
Reliability was the second element considered in the evaluation of the AHS
2015. Validity has already been discussed in terms of the AHS 2015 in relation to
appearing to measure what it was intended to measure. Reliability, on the other hand,
is concerned with the ability of the AHS 2015 to measure consistently (Golaszewski,
Hoebbel, Crossley, Foley, & Dorn, 2008). There are many test items in the AHS 2015,
with varying scales and concepts and Cronbach’s Alpha and the mean Inter-Item
Correlation were used to test reliability of the AHS2015. These results are presented
in Table 3.3-2, together with the number of items in each scale. It is common with
scale items less than 10 to find low Cronbach’s Alpha (0.5) and therefore the Mean
Inter-Item Correlation may be more appropriate in a range of 0.2 to 0.4 (Briggs &
Cheek, 1986). Because of the lack of known validity of the Australian Health survey
2011-13, it was tested for reliability with the majority of items showing internal
consistency.
The questions on works hours, fatigue, non-clinical anxiety and sleep were the
same questions used in a 2003 review of the health and work of AOP (Parker, A. W.
& Hubinger, 2003). At that time, face validity of these questions was established with
an advisory group and pilot tested with 22 operational officers. The anxiety and fatigue
constructs in the AHS2015 showed internal validity with Cronbach’s Alpha of 0.507.
However, sleep and hours worked showed only a weak internal consistency.
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Table 3.3-2 Cronbach’s Alpha and Mean Inter-Item Correlations - AHS 2015
Construct Scale Items Cronbach’s Alpha Mean Inter-Item Correlations
Education/Quals 2 0.443 0.183 Shifts (Y/N) 2 345.242 0.995 Consider leaving 12 0.808 0.229 SR health 2 23.988 0.945 K10 10 0.796 0.331 Mental meds 6 0.717 0.318 Self-BMI 2 0.261 0.537 BMI grouped 4 0.426 0.124 BMI measured 5 0.399 0.149 Bodily pain 2 0.770 0.649 Disability 14 0.706 0.165 Exercise hours 15 0.540 0.156 Sitting hours 7 0.702 0.331 Smoking 3 0.648 0.296 Diet 2 0.463 0.316 Alcohol 19 0.263 0.048 Asthma 4 0.745 0.609 Cancer 3 0.471 0.225 CVD 8 0.579 0.138 Arthritis 3 0.938 1.000 Diabetes 13 0.870 0.387 Sight/hearing 12 0.509 0.094 LTC 24 0.765 0.113 MHD 14 0.099 0.252 Stressors 19 0.700 0.141 Overweight 10 0.590 0.321 BP 5 0.594 0.540 Rest breaks 10 0.421 0.365 Wellness incentive 2 0.695 0.551 BtE 15 0.824 0.236 Wellness when 4 0.319 0.108 Health culture 7 0.820 0.440 Job satisfaction 19 0.779 0.316 Anxiety/fatigue 14 0.507 0.114 Hours worked 2 0.058 0.747 Performance 4 0.005 0.012 Sleep 11 0.363 0.140
Abbreviations: Quals. = qualifications; SR = self-reported; K10 = Kessler psychological distress scale; Meds = medications; BMI = Body Mass Index; CVD = Cardiovascular disease; LTC = Long term condition; BP = Blood Pressure; BtE = Barriers to exercise.
Legend: Internal consistency.
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The personal interest component of the AHS 2015, which was taken from a
Tompkins County Worksite Wellness Employee Interest Survey included rest breaks,
use of wellness facilities and barriers to physical activity. These three constructs
showed internal consistency with Cronbach’s Alpha ranging from 0.421 to 0.824 and
Mean Inter - Item Correlations ranging from 0.114 to 0.440. The Tompkins County
Survey had not been previously validated.
The four questions on health culture was taken from the Lifegain Health Culture
Survey and according to (Golaszewski et al., 2008) a high Cronbach’s Alpha of 0.934
suggests considerable redundancy within the constructs. In the AHS 2015 the
Cronbach Alpha Coefficient was 0.820.
The job satisfaction component of the AHS 2015 was taken from a previously
non-validated job satisfaction survey. The Cronbach’s Alpha was 0.779 and the Mean
Inter-Item Correlation was 0.339, showing strong internal consistency.
The performance questions used in the AHS 2015 did not show any internal
consistency despite the WHO Health and Performance Questionnaire being valid and
reliable. Given the previous reliability and validity testing it was felt to still include
these components as a way of seeking information about how the health status of AOP
impacted on the performance of the individual.
3.3.3 Administration of the Survey
Following the Commissioner’s announcement of the research in March 2015,
the survey was posted and e-mailed by the researcher to all AOP in April 2015.
Recruitment details and participant information concerning the project were included.
Participants had the option of completing the survey in one of three ways:
1. By completing and making a hard copy and mailing back to the researcher.
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2. The survey instrument had been designed using MS Word developer and could be
completed electronically and returning to the researcher via email.
3. Completion via Key Survey.
Several reminder letters were sent to respondents who had not replied to the
initial and subsequent requests to complete the survey, prior to closure of data
gathering in August 2015.
3.4 Ethical Considerations
This research required ethics approval and the ambulance service commissioner
indicated his approval for the research when approved by the QUT ethics committee.
The AHS 2015 participant information, an invitation letter, a recruitment email and a
reminder letter were developed and approved by the Queensland University of
Technology’s Higher Research Ethics Unit: Ethics approval number 14000000936 on
the 18 February 2015 (Appendix A).
A major potential ethical issue associated with the research was that the
researcher was a senior officer with the ambulance service which may influence
participant’s involvement. This was identified early in the research and overcome by
a major change in the methodology, in which the researcher was dissuaded from
supervising the survey, self-measures and taking serum for biological markers. The
original research design was reviewed and replaced by a cross sectional research
design, include self-measures, but no biological markers and which allowed the
respondents to remain anonymous. Consent for involvement was obtained using a
unique code for de-identification with the potential for comparison of data in future
surveys. Other ethical issues that were overcome include:
1. Confidentiality, security and anonymity of data – use of a code and Key Survey.
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2. Some of this data may be relevant to employment standards and access to the data
may have implications for the participant – data was not shared with the ambulance
service.
3. Sampling techniques and identification of participants – all AOP were canvassed
and most respondents replied via key survey. Those that used email or mail had
their data entered into Key Survey and once this had been validated, these surveys
were stored in a supervisor’s office and destroyed after checking and analyses had
been completed.
4. The candidate was a senior officer of the ambulance service and thus any suggestion
of enforcement was carefully avoided. This was managed by using the following
strategies:
a. Voluntary nature and confidentiality of the information received.
b. The research was about caring for paramedics, their health, concerns and
issues.
c. Assurance of confidentiality and ethical conduct.
d. Assurances that participation in this research will not affect a participant’s
relationship with the ambulance service or QUT.
e. The researcher would answer any questions.
f. Assurance of ability to withdraw and have all data deleted. No respondents
asked to be withdrawn.
g. Ability to not answer any question.
h. Ethical concerns can be directed to the research ethics unit.
i. Assurance of the access to reports and publications post analysis.
j. The researcher ensured all participants received a copy of the Privacy
Statement and how the researcher will comply with the Information Privacy
Principles.
Only one complaint was received, and this was managed by the researcher. This
complaint was from a paramedic who thought that a completed survey form that had
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been completed by the researcher to assist potential respondents with any questions
they may have with the survey, matched the identity of an individual at an ambulance
station. A number of emails were received that asked to be removed from the
reminders and this was accomplished by a simple deletion of email addresses from the
reminder list.
3.5 Conclusion
This chapter outlines the research design of this mixed methods research. It
includes a discussion on collecting quantitative and qualitative date, sample size,
quantitative data input and analysis. (e.g. demographics, descriptive, inferential and
regression). Reliability and validity of the quantitative and qualitative data were
discussed, as well as the use of a thematic analysis technique and ethical
considerations. It provided insight into the development of the AHS 2015 and the
qualitative data collections and their relationship to the aims of the research.
Importantly, this chapter provides evidence of the methodological rigor applied to this
research and how the needs of participants and partners (e.g. Queensland Ambulance
Service and Queensland University of Technology) were satisfied.
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4 Results
4.1 Introduction
The AHS 2015 survey data was used for the quantitative component of this
mixed methods research. The AHS 2015 was a large survey comprising 154 health
related questions that were developed during 2013-14 and administered in 2015. A
large component of the AHS 2015 consisted of questions from Australian Health
Survey 2011-13, enabling comparison where appropriate (e.g. using the Kessler K10
Psychological Distress Scale). The quantitative analysis was completed in two stages:
1) demographic and descriptive analysis and 2) inferential analysis.
The aim of the research was to explore the health status of ambulance operational
personnel and to develop a conceptual understanding that may inform policy
development, management and future research. The survey was offered to all
operational personnel (n = 4,129) in the Ambulance Service and achieved a response
rate of 16% (n = 663). The survey was designed to identify the characteristics of the
participants along with indicators of their health status, work status, perceptions of
work-related health culture and stressors, risk factors and health promoting activities.
The survey was applied to AOP in three occupational categories, as follows:
1. Ambulance Operational Personnel who work twenty-four-hour shift patterns,
have an intermittent and unpredictable work (response) pattern, work in an
unsupervised and highly stressful environment with critically ill patients and
highly distressed patients. Their work is often scrutinised by other health
professionals, supervisors, patients and bystanders and is subject to rigorous
clinical governance processes. They work in often inconvenient and unfamiliar
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environments and they are subject to complaints, verbal and physical violence and
intimidation. They have little autonomy in their work, eat intermittently and often
complete long shifts without rest breaks (Mahony, 2001).
2. Operational supervisors/managers also respond to clinical cases although they
mainly provide support, lead and manage paramedics and EMDs from a clinical
and performance perspective. They tend to work more regular hours compared to
paramedics and EMDs.
3. Emergency Medical Dispatchers are not clinically trained and work in a call
centre environment at the interface between the public and operational personnel.
They can be subject to verbal abuse and emotional impacts from concerned
relatives and friends of patients seeking help. Both operational
supervisors/managers and EMDs generally have a sedentary component to their
work, which is known to have an inverse relationship with health (Tremblay et al.,
2010).
This is the first known research that attempts to identify the health of AOP,
including the personal, environmental and organisational influences on their health,
and how negative influencers (e.g. shift work) may be mitigated.
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4.2 Stage One – Demographic and Descriptive Analysis
Demographic Profile
A total of 663 responses were received of which 66.8% (n = 443) were
operational paramedics, 20.8% (n = 138) operational supervisors and 12.4% (n = 82)
EMDs which reflects the proportion of each group within the service.
The overall mean age of respondents was 37 years with females having a mean
age of 34.8 (SD = 9.8) years and males a mean age of 42.1 (SD = 11) years. The mean
age of major employment types was: Emergency Medical Dispatcher 37 (SD = 9.6)
years, Advanced Care Paramedic 37.1 (SD = 11.0) years, Critical Care Paramedic 39.7
(SD = 7.8) years, Officer in Charge/Supervisor 46.1 (SD = 9.7) years and managers
49.9 (SD = 7.7) years.
Figure 4.1 demonstrates the age profile of men and women in the sample in
comparison with the age profile of the Ambulance service as a whole (QAS, 2015).
Figure 4-1. Age: Respondents vs. Ambulance Service.
0
5
10
15
20
25
20‐24
25‐29
30‐34
35‐39
40‐44
45‐49
50‐54
55‐59
60‐65
65+
Percentage of Total
Age Groups
% AAS PopulationFemale
%AAS PopulationMale
% RespondentFemale
% Repondent Male
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
The profile indicates a greater number of females in the 25-29 age group than
males, which was consistent with the ambulance service profile. The respondent
population age was representative of the ambulance population age overall and when
considered in terms of gender. There was more older males and younger females in
the service generally. Although 63.7% of respondents were male, the ratio of males to
females varied considerably within the different employment groups: EMDs (29:71),
Advanced Care Paramedics (62:38), Critical Care Paramedics (83:17) and
Supervisor/managers (81:19). There is an evolving gender balance of AOP of the
ambulance workforce, and this was related to females being the majority of university
graduates in paramedicine. Females were more likely to be over represented in the <
4 years’ service category [χ² (6, n = 663) = 91.239, p = .000] than males. However,
males tended to be over represented as years in ambulance increased. Age and gender
are little discussed in this section as there are multiple associations with other variables
that are included throughout this chapter. For instance, in the ‘Qualifications’ section
the proportion of females and males with undergraduate degree is explained. And in
the ‘Cardiovascular disease’ section it was shown that CVD grew with increased years
of service.
Relationship Status
A high proportion of respondents (82.7%) were in a stable relationship (e.g.
married), 9.2% had never been in a relationship, 5.9% were separated and 2.1% were
divorced.
Qualifications
Table 4.2-1 identifies the highest level of qualification held by the respondents.
The proportion with university qualifications (57.9%) reflects not only the entry
qualifications but also qualifications obtained prior to, and after undertaking
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ambulance work. The proportion with degrees was inversely related to age and this
reflects the relative recency of the move to university entrance for paramedics (see
Table 4.2-2). Table 4.2-3 reflects the differing qualifications of AOP. Additionally,
females were more likely to have an undergraduate degree. However, a higher
proportion of males than females had postgraduate qualification, [χ² (4, n = 663) =
19.556, p = .001] and appointments to supervisory roles.
Table 4.2-1 Highest Qualification by Age
Trade Diploma Degree Higher degree
Other Total
Age
Gro
ups
(Yea
rs)
<20 0 0 1 1 0 2 21-25 0 7 68 6 3 84 26-30 7 13 57 18 4 99 31-35 2 25 31 12 9 79 36-40 5 38 27 21 3 94 41-45 3 38 27 19 6 93 46-50 4 30 24 23 6 87 51-55 3 28 10 16 7 64 56-60 2 23 11 4 5 45 61-65 1 6 3 4 0 14 >65 0 1 1 0 0 2
Total 27 209 260 124 43 663
Table 4.2-2 Highest Qualification by Employment Type
Diploma % Degree % Higher Degree % EMD 44 12 5
Paramedic 28 49 19 Supervisor/Manager 9 6 7
Total 81 67 31
Table 4.2-3 Qualifications
n % Trade certificate 27 4.1
Diploma 209 31.5 Undergraduate degree 260 39.2
Higher degree 124 18.7 Other qualification 43 6.5
Total 663 100.0
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Years in Ambulance
The mean number of years working in an ambulance service was 12.5, (Range
1-46, SD 10.1) and the mean number of years of shift work was 13.3, (Range 1-46, SD
9.533).
Station Classification
Ambulance stations are categorised based on their human resources and extent
of coverage as shown in Appendix C, Table 8.1. This in turn reflects workload based
on Unit Hour Utilisation (QAO, 2013). For example, a Category One station is a single
officer station, while a category five station has a minimum of 17 officers associated
with two officer crews working across 24/7 periods.
The distribution of respondents to the survey by station category (see Table 4.2-
4) indicates that a majority worked at category five stations (54%) with 24/7 schedules
or non-station locations (22%). Respondents at non-station locations included EMD’s
and certain operational supervisors.
Table 4.2-4 Respondent Location by Station Classification
Station Classification n % One 27 4.1 Two 57 8.6
Three 34 5.1 Four 38 5.7 Five 361 54.4
Non-station 146 22.0 Total 663 100.0
Employment type
Predominantly, most respondents were full time permanent employees of the
ambulance service (91.4%), 3.5% were permanent part time, 2.9% were casual and the
remainder (2.3%) describe themselves as other.
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Employment categories
Employment categories consisted primarily of Advanced Care Paramedics
(ACPs) 55.5%, Officer in Charge/Supervisor (OIC/Sup) 17.0%, EMD 12.4%, Critical
Care Paramedics (CCP) and a smattering of other types as described in Table 4-5. For
the purposes of this research, these employment categories were classified into EMDs,
paramedics and supervisor/managers. This is shown in Table 4.2-5.
Table 4.2-5 Respondent Employment Categories
Employment Type AHS 2015 Employment Type Grouped
n % n %
EMD 82 12.4 EMDs 82 12.4
PTO 16 2.4 Paramedics 443 66.8
Student 13 2.0
ACP 368 55.5
CCP 46 6.9
OIC/Sup 113 17.0 Supervisor/Manager 138 20.8
‘M’ Scale 23 3.5
Dir 1 .2
Exec 1 .2
Total 663 100.0 Total 663 100.0
Abbreviations: EMD = emergency medical dispatcher; PTO = patient transport officer; ACP = advanced care paramedic; CCP = critical care paramedic; OIC = officer in charge; Sup = supervisor; “M’ scale is a middle manager in operations; Dir = director; Exec = executive.
Figure 4.2 shows a comparison of the proportion of appointees across the three
major job categories in the survey sample and the overall ambulance service
workforce, which indicated similar proportions between the two groups. It shows a
higher representation of the EMD and supervisor/manager survey respondents.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Figure 4-2. Employee Categories: Respondents vs. Ambulance Service.
4.2.1 Health Status of Individual Workers
The second aspect of the survey sought to identify indicators of the health status
of individuals. Indicators included type and level of engagement with health services,
individual perceptions of health status, and presence of illness or disability.
Type and level of engagement with personal health services provider
Of all respondents, 60.8% reported having regular check-ups with a General
Practitioner (GP) and 87 and 53% having their blood pressure and cholesterol checked
respectively in the last 12 months.
The rate at which respondents sought medical advice varied with their
educational status. Males with undergraduate degrees were less likely to have check-
ups with a GP, [χ² (12, n = 422) = 39.388, p = .000] and to have cholesterol checks [χ²
(8, n = 422) = 38.407, p = .000] than those with lower education. In contrast, as years
in ambulance and years of shift work increased, males and female respondents reported
having more health, blood pressure and cholesterol checks.
12.4
66.8
20.8
9.7
77.1
10.7
EMD OPERAT IONAL SUP ERV I SOR /MANAGER
PER
CEN
TAGES OF EA
CH GROUP
Respondnents QAS Population
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General health status
The findings indicated that a lower proportion of respondents reported their
health to be excellent by comparison with the Australian population (ABS, 2012e). A
higher proportion also reported fair or poor health. The proportion reporting a lower
health status was twice as high than found in an earlier health related survey of AOP
(Parker, A. W. & Hubinger, 2003) (see Table 4.2-6).
Table 4.2-6 Self-Reported Health: Respondents vs. Other Sources
Excellent Very
good
Good Fair Poor Total
Australian Population 24.4 38.1 28.8 7.3 1.5 100.0
Respondents 8.6 35.0 38.8 15.1 2.4 100.0
(Parker, A.W. &
Hubinger, 2003)
25.5 ….55.6…. 17.8 1.1 100.0
In addition, a more detailed analysis showed that there was a relationship
between self-reported health status and risk factors, including accessing of health care.
Males with poor self-reported health consumed greater than 20 alcoholic drinks per
week [χ² (16, n = 447) = 28.312, p = .029] and had increased their alcohol intake in the
previous 12 months [χ² (8, n = 411) = 22.445, p = .004]. Similarly, as health status
decreased, systolic blood pressure increased to more than 140mmHg [χ² (12, n = 644)
= 35.729, p = .000] and diastolic blood pressure to more than 90mmHg [χ² (8, n = 644)
= 35.138, p = .000]. However, this relationship was not as strong when blood pressure
(systolic/diastolic) was analysed with health status. As health status decreased, obesity
[χ² (8, n = 628) = 101.954, p = .000] and overweightness [χ² (12, n = 663) = 119.402,
p = .000] increased. Other associations with decreasing self-reported health are shown
in Appendix C, Table 8.2.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
The second element in the reporting of health status was the identification of
people who have evidence of chronic illness, (both mental and physical).
Mental Health, Anxiety and Stressors
Results suggest 38.7% of respondents reported having mild to severe
psychological distress in accordance with the Kessler Psychological Distress Scale
(K10) (Coombs, 2005) with the severity of their symptoms being rated using a five-
point Likert scale of none too severe. As shown in Table 4.2-7, comparison of the rate
of psychological distress in the ambulance service was less than that of the Australian
population (ABS, 2012d).
Table 4.2-7 Kessler Psychological Distress Score: Respondents vs. Australian Population
Mild % Moderate % Severe %
Australian population 68.0 19.5 8.0
Respondents 24.4 9.2 5.1
As health status decreased, the number of respondents who reported
psychological distress increased, [χ² (12, n = 663) = 96.695, p = .000], (OR = 2.389,
95% CI 1.7:4.8, p = <0.05). Respondents with poor self-reported health were more
likely to experience anxiety [χ² (8, n = 560) = 28.938, p = .000] than those with good
self-reported health.
In addition, 98.2% of respondents reported feeling depressed at some level, in
the previous four weeks. Males with a diagnosed mental health condition and an
increased K10 score reported constant anxiety at work more frequently than females
[χ² (3, n = 422) = 25.463, p = .000], with that anxiety rated as moderate to high [χ² (2,
n = 352) = 28.573, p = .000]. Additionally, 11.3% of all respondents had a diagnosed
mental health condition. This included depression (7.5%), generalised anxiety disorder
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Results
(3.5%) and post-traumatic stress disorder (PTSD) (2.6%). Medication for mental
health conditions was taken by 11.2% of respondents.
The effects of job insecurity (e.g. the loss of a valued job, demotion and career
insecurity) as a result of organisational restructuring or downsizing has been known to
increase stress and create stress reactions that can be described as somatic,
psychological and behavioural (Sverke, 2006). Therefore, personal and family
stressors were examined in relation to mental health. Males with a diagnosed mental
health condition were more likely to report job insecurity [χ² (5, n = 422) = 30.862, p
= .000] than those without a diagnosed mental health condition, whilst males, [χ² (15,
n = 422) = 64.714, p = .000] and females, [χ² (9, n = 241) = 24.842, p = .003] with a
high K10 score were more likely to report divorce and job insecurity.
Males, [χ² (6, n = 422) = 43.349, p = .000] and females, [χ² (4, n = 241) = 24.818,
p = .000] with a diagnosed mental health condition were more likely to report a
physical disability compared to those who did not have a diagnosed mental health
condition. Females with a diagnosed mental health condition [χ² (2, n = 241) = 7.730,
p = .021] were more likely to report arthritis. As the K10 score increased, females with
asthma increased [χ² (9, n = 27) = 17.991, p = .000]. In addition, males, [χ² (1, n = 422)
= 5.450, p = .020] and females, [χ² (1, n = 241) = 16.408, p = .000] who had a diagnosed
mental health condition were more likely to have asthma than those without a
diagnosed mental health condition. Females in other paid employment or who did
voluntary work were more likely to have a diagnosed mental health condition [χ² (5, n
= 241) = 12.927, p = .02] than males in the same category. Males with thoughts of
leaving [χ² (4, n = 422) = 24.841, p = .000] were more likely to experience a diagnosed
mental health condition than females. Other associations between diagnosed mental
health conditions and job satisfaction are shown in Appendix C, Table 8.3.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Males, [χ² (3, n = 422) = 17.213, p = .001] and females, [χ² (6, n = 229) = 21.361,
p = .002] were more likely to report a cancer diagnosis as their K10 score increased.
However, only males who had been diagnosed with cancer were likely to report having
a diagnosed mental health condition [χ² (1, n = 422) = 9.551, p = .002]. CVD was
associated with mental health and a higher K10 score was associated with an increase
in cardiovascular conditions [χ² (3, n = 663) = 8.737, p = .001]. Males, [χ² (3, n = 422)
= 36.364, p = .000] and females, [χ² (3, n = 241) = 12.927, p = .005] with thoughts of
leaving ambulance employment were more likely to have a higher K10 score compared
to those without thoughts of leaving.
There were several statistically significant associations between the K10 score
and alcohol. As the K10 score increased, there was a concomitant increase in the
number of males who consumed greater than 20 drinks per week [χ² (12, n = 290) =
31.242, p = .002]. In addition, females with moderate psychological distress consumed
five or more alcoholic drinks at least twice a week [χ² (18, n = 43) = 32.672, p = .004]
and as psychological distress worsened, respondents who had increased alcohol
consumption over the previous year, also increased [χ² (6, n = 411) = 34.468, p = .000].
In addition, as the K10 score increased, males [χ² (9, n = 422) = 82.817, p = .000] and
females [χ² (9, n = 241) = 37.697, p = .000] who experienced frequent to constant
anxiety were more likely to describe that anxiety as moderate to high [χ ² (2, n = 352)
= 28.573, p = .000] than those who experienced moderate to mild fatigue.
Two questions in the AHS 2015 asked about family and personal stressors.
Males with a diagnosed mental health condition [χ² (4, n = 422) = 25.565, p = .000] or
a higher K10 score [χ² (12, n = 422) = 67.999, p = .000] reported a serious accident,
death or a serious disability of a family member or a close friend. Forty-nine-point
nine percent of respondents reported one or more family stressors (serious illness or
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Results
accident, death of a family member or close friend, mental illness or serious disability)
and 17.5% reported one or more problems for self (divorce of separation, alcohol or
drug problems, witness to violence, abuse or violent crime, trouble with police or a
gambling problem). The breakdown of these results is presented in Appendix C, Table
8.4.
Physical disability
As shown in Appendix C, Table 8.5, 46.9% of all respondents reported one or
more disabilities and 20.2% described disabilities that restricted their work-related
physical activity.
Chronic Disease
Table 4.2-8 Leading causes of Ill Health: Australian vs. Respondent Population
Age
group
1st AP RP 2nd AP RP
25-44 Anxiety Disorders
6.7%
MHD
10.2%
Back problems
6.5%
Back Problems
37.5%
45-64 CHD 7.5% CHD 21% Other MSK
5.7%
Back Problems
33.4%
Abbreviations: AP = Australian population, RP = respondent population, MHD = mental health diagnosis, CHD = coronary heart disease, MSK = musculoskeletal.
Table 4.2-8 shows the first and second leading causes of ill health in the
Australian and respondent population. Back problems, mental health disorders and
coronary heart disease are higher than the Australian population. The rate of chronic
disease for females (55.6%) in the respondent population was shown to be lower than
that of males (64%) [OR = 1.418, 95% CI 1.027-1.958, p = 0.034], which was the
reverse of that of the Australian population (females 25% vs. males 21%) (AIHW,
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
2016c). This may reflect a decreasing number of female paramedics after the age of
34.
Arthritis
A total 15.6% of respondents reported experiencing arthritis related conditions
and these are shown in Table 4.2-9.
Table 4.2-9 Arthritis
Type %
Arthritis 9.0
Rheumatism 1.1
Gout 4.1
Osteoporosis/Osteopenia 1.4
Total 15.6
Males with 15 years of shift work or more, who reported arthritis [χ² (6, n = 422)
= 18.874, p = .004] stayed away from work because of the functional impact of arthritis
[χ² (6, n = 33) = 33.246, p = .000]. In contrast, females in the 10-14-year shift work
group reported a functional impact of osteoporosis [χ² (12, n = 241) = 19.245, p =
.006]. Adding to this, Critical Care Paramedics (CCPs) and supervisors were likely to
have gout [χ² (16, n = 663) = 65.010, p = .000]. Males who were separated/divorced
had osteoporosis or osteopenia [χ² (6, n = 422) = 18.543, p = .005] and females who
have arthritis were likely to be divorced [χ² (8, n = 241) = 49.111, p = .000].
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Asthma
Asthma rates in respondents were significantly higher (26.7%) than that of the
Australian population (10.2%) (ABS, 2012a), [OR = 3.33, 95% CI (1.5 – 7.3), p =
0.002] (see Figure 4.3).
Abbreviations: AS = Ambulance Service, AP = Australian Population
Figure 4-3. Asthma: Age and Gender - Ambulance Service vs. Australian Population
Males with asthma also reported experiencing a serious illness [χ² (4, n = 422) =
9.729, p = .045] and job insecurity [χ² (5, n = 422) = 15.012, p = .010]. Whilst tobacco
smoking rates were low (8.9%) compared to the Australian population, males [χ² (1, n
= 402) = 4.246, p = .039] and females [χ² (1, n = 241) = 9.551, p = .002] who smoked
were more likely to have asthma than those who did not smoke.
Cancer
Considering cancer is a known risk factor for shift workers (Blask, 2009), a number
of questions were included in the AHS 2015. Seven-point four percent of respondents had
0
5
10
15
20
25
30
35
40
45
50
AP AS AP AS AP AS
Male Female Total
Percentage as a proportion
of each age group
Age Group
15‐24 25‐34 35‐44 45‐54 55‐64
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a diagnosis of cancer at some stage in their life and 1.8% currently experienced cancer as
against 1.3% in the Australian population. Of importance, as health status decreased [χ²
(8, n = 422) = 21.100, p = .007], skin checks had also decreased. However, as years in
ambulance increased, so did regular skin checks [χ² (12, n = 663) = 24.953, p = .015] and
the likelihood of a cancer diagnosis [χ² (6, n = 663) = 35.021, p = .000]. There was a
similar relationship with increasing shift work years and an increased likelihood of a
cancer diagnosis [χ² (12, n = 663) = 24.722, p = .016].
When adjusted for age, managers, supervisors and CCPs were all more likely to be
diagnosed with cancer after 45 years of age compared to those who were younger than 45
years of age. Males who were separated/divorced were also more likely to have a diagnosis
of cancer [χ² (3, n = 422) = 13.056, p = .005]. Additionally, males [χ² (6, n = 422) = 22.220,
p = .001] and females [χ² (4, n = 241) = 12.027, p = .017] with vision and hearing
disabilities were more likely to have a diagnosis of cancer. There was no statistically
significant association between tobacco smoking and a current diagnosis of cancer.
However, those who consumed seven or more alcoholic drinks per week were more likely
to have had a cancer diagnosis [χ² (32, n = 663) = 75.451, p = .000] than those who
consumed six or less alcoholic drinks per week.
Cardiovascular Disease (CVD)
Of all respondents, 12.4% had been diagnosed with a cardiovascular disease
compared to 5.0% in the Australian population (ABS, 2012c). Appendix C, Table 8.6
describes the frequency of cardiovascular disease in the respondent population. Table
4.2-10 shows CVD by age group for both the respondent and the Australian
population.
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Table 4.2-10 CVD Diagnosis: Age - Respondents vs. Australian Population
Age Group AP AS
15-24 0.2 3.3
25-34 0.7 4.8
35-44 1.4 7.4
45-54 3.8 20.0
55-64 8.6 35.2
Abbreviations: AP = Australian Population, AS = Ambulance Service.
The proportion of respondents with a CVD diagnosis were consistently higher
in each age group and as age increased respondents also reported increased rates of
CVD. In contrast to those who did not experience CVD, males who have experienced
CVD reported: having their blood pressure checked in the last 12 months [χ² (2, n =
422) = 11.936, p = .003], having a systolic blood pressure greater than 130mmHg [χ²
(3, n = 416) = 17.949, p = .000] and a diastolic blood pressure greater than 90mmHg
[χ² (2, n = 416) = 6.954, p = .031]. In addition, males who were considered to be obese
[χ² (2, n = 399) = 7.139, p = .026] were more likely to report being diagnosed with
CVD, than males who were of normal weight. Males, [χ² (1, n = 422) = 12.895, p =
.000] and females, [χ² (1, n = 241) = 9.980, p = .002] who have CVD were more likely
to report diabetes, [OR = .169, 95% CI (.076 - .379)] as against those who do not have
CVD. As shift work years increased, the proportion of supervisor/managers and PTOs
who have CVD [χ² (6, n = 663) = 53.351, p = .000] also increased.
Diabetes
In total, 4.4% of respondents reported having diabetes as against 4.0% in the
Australian population (ABS, 2012b) (see Table 4.2-11). Of those who reported
diabetes, the majority had Type 2 Diabetes in both the AHS 2015 respondents and the
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Australian population. In addition, males had higher rates of diabetes than females;
5.0/2.9 for AHS 2015 respondents as against 4.6/3.6 for the Australian population. The
rate of diabetes in respondents from the 55-64-year age group was twice that of the
Australian population. Other diabetes associations are shown in Table 4.2.12. This
table shows all diabetes in the respondent and Australian population. Type one
diabetes accounted for 0.5% of the respondent population.
Table 4.2-11 Diabetes: Age & Gender, Respondents vs. Australian Population
Males Females Total
AP AS AP AS AP AS
15-24 0.4 0.0 0.5 0.0 0.5 0.0
25-34 1.1 0.0 0.3 3.1 0.8 1.6
35-44 2.5 2.3 1.1 3.3 1.8 2.7
45-54 4.6 7.0 3.6 2.5 4.1 5.8
55-64 8.9 15.4 7.5 16.7 7.8 15.5
Abbreviations: AP = Australian Population, AS = Ambulance Service
Table 4.2-12 Other Diabetes Associations
Gender Chi-squared d.f. n Sig
Poor SR Health Males 18.997 4 422 0.001
Five or more alcoholic drinks Males 31.453 12 94 0.002
↑ Bodily pain Males 25.847 5 422 <0.001
Disability Males 24.660 4 422 <0.001
Personal stressors Males 24.514 5 422 <0.001
Obesity Males 8.115 2 339 0.017
Hypertension Males 26.675 2 412 <0.001
↑ SWY Males 13.175 6 422 0.040
Abbreviations: SR = self-reported, ↑ = increased, SWY = shift work years, d.f. = degrees of freedom, Sig = significance.
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Respondents who self-reported experiencing diabetes had annual check-ups with
their GP [χ² (3, n = 663) = 8.466, p = .037]. Males, [χ² (2, n = 422) = 30.697, p = .000]
and females, [χ² (2, n = 241) = 22.885, p = .000] who had diabetes, reported
osteoporosis, a cardiovascular condition and a higher K10 score. Females who had
diabetes were also more likely to be diagnosed with cancer [χ² (1, n = 241) = 10.909,
p = .001].
4.2.2 Work Status
Station category
The majority of ACPs and CCPs were employed at category five stations (this is
where most of these positions are based), EMDs were based at operations centres
whilst supervisors were evenly split between station and non-station locations. In
contrast to those who were not employed at category five stations, males employed at
category five stations were more likely to have their cholesterol checked [χ² (10, n =
422) = 29.334, p = .001] and less likely to have a diagnosis of diabetes [χ² (5, n = 422)
= 12.361, p = .030]. As years in ambulance increased, males, [χ² (30, n = 422) = 49.944,
p = .013] and females, [χ² (30, n = 241) = 43.891, p = .049] were more likely to not
work at category five stations compared to those who have fewer years in ambulance.
Shift Work
A large proportion of respondents (n = 88.4%) were engaged in shift work.
Among these participants, males were less likely to have health check-ups [χ² (3, n =
422) = 9.005, p = .029] compared to males who did not engage in shift work. In contrast
to those who did not perform shift work, males [χ² (24, n = 442) = 38.766, p = .029]
and females [χ² (4, n = 241) = 14.176, p = .007] who performed shift work were more
likely to report bodily pain interfering with normal work. These males were likely to
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experience hearing problems [χ² (1, n = 422) = 7.051, p = .008] and have worsening
hearing as shift work years increased [χ² (6, n = 422) = 17.089, p = .000]. Males with
greater than 15 shift work years were more likely to experience arthritis [χ² (6, n =
422) = 18.874, p = .004] and diabetes, [χ² (6, n = 442) = 13.175, p = .040], than those
with less than 15 shift work years. As a reflection of age, years in service and having
already worked a mean of 13.42 years of shift work, males who do not perform shift
work were more likely to have a CVD [χ² (1, n = 422) = 22.302, p = .000]. In contrast,
as shift work years increase, employees will be older, and it was therefore likely that
males and females had CVD [χ² (6, n = 663) = 53.351, p = .000], cancer [χ² (6, n =
663) = 45.528, p = .000] and females had osteoporosis [χ² (12, n = 241) = 19.245, p =
.006].
Years of Service in Ambulance (YIA)
Table 4.2-13 describes years of service of respondents in five year age groups.
Table 4.2-13 Experience -Years of Service
<5 5-9 10-14 14-19 20-24 25-29 >29 Total
n 161 184 92 63 47 63 53 663
% 24.7 27.7 13.8 9.4 7.0 9.4 8.0 100.0
Managers were likely to have greater than 30 years in ambulance with EMDs
and ACPs likely to have less than 10 years in ambulance [χ² (48, n = 663) = 303.945,
p = .000]. As years in ambulance increased, respondents tended not to have an
undergraduate degree, but had a post graduate qualification [χ² (24, n = 663) = 104.390,
p = .000].
For females there was a positive association between years of service and alcohol
consumption. Females will have had at least one alcoholic drink in the previous seven
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days [χ² (108, n = 157) = 143.347, p = .013] and consume five or more alcoholic drinks
in one sitting at least once per week [χ² (30, n = 43) = 51.585, p = .008]. Females drank
more than males in the 1-5 drinks per week group with years of service less than five
years, 5-9 years 14-19 years, and 25-29 years and overall 62.4% of females drank
between 1-5 drinks per week compared to males at 50.7%. Females who drank more
than 5 drinks in one sitting at least once per week or beyond had a higher proportion
in the less than five and 5-9 years age group. However, overall 5.0% of males drank 5
or more drinks at least once per week compared to 3.7% of females.
Other Work
Fifty-four-point three percent of respondents reported doing other work:
primarily home duties 23.5%, voluntary work 12.8% and paid employment 11.9%.
This is shown in Figure 4.4.
Figure 4-4. Respondents who do other Work
Female shift workers were less likely to do other paid or voluntary work, [χ² (5,
n = 241) = 12.794, p = .025]. As years in ambulance increase, both genders tended to
do other work [χ² (30, n = 663) = 66.494, p = .000].
46%
12%4%
13%
23%2% None
Paid employment
Own business
Voluntary work
Home duties
Other
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4.2.3 Risk Factors
BMI Self-Reported
Respondents were asked if they considered themselves to be underweight,
normal weight or overweight and this was compared to computed BMI from self-
measured height and weight of respondents and that of the Australian population (see
Table 4.2-14 for the findings). Importantly, 59.4% who said they were overweight (this
was a description rather than a measure) underestimated their obesity (calculated with
their self-reported measures), with 43.8% of this group self-measuring as overweight
(BMI 25.0 - 29.9) and 54.3% as obese (BMI ≥ 30) [χ² (6, n = 628) = 320.664, p =
.000]. Females, [χ² (4, n = 229) = 156.178, p = .000] who self-reported being
overweight were more likely to self-measure as obese (BMI ≥ 30) as against those who
do not report being overweight. EMDs, supervisors and managers tended to regard
themselves as being overweight [χ² (24, n = 663) = 48.461, p = .002]. Overall the
respondent population was reported to be less overweight than the Australian
population using BMI as the measure. Appendix C, Table 8-7 describes the
relationship between self-reported overweightness, health status indicators and gender.
Males report increasing weight associated with increasing shift work years [χ² (18, n
= 442) = 35.150, p = .009].
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Table 4.2-14 Overweightness: Respondents & Other Sources
Self-Reported
%
Self-Measured
%
AOP 2003 (Parker, A.W. & Hubinger, 2003)
AP (ABS, 2012f)
Males 46.4 70.9 NR 70.3
Females 36.5 45.9 NR 56.2
Overall 41.5 59.4 67.6 63.4
Abbreviations: AP = Australian population, NR = not recorded.
BMI Self-Measured
Supervisors, managers, EMDs and PTOs were more likely to be overweight or
obese [χ² (16, n = 628) = 51.057, p = .000] than paramedics. In addition, males who
were employed at category two, three or four stations were more likely to be
overweight [χ² (10, n = 399) = 18.943, p = .041] compared to males who were
employed at category five stations. Additionally, respondents who were current shift
workers tended to be overweight or obese [χ² (2, n = 628) = 8.851, p = .012]. As shift
work years [χ² (12, n = 628) = 45.245, p = .000] and years in ambulance [χ² (12, n =
399) = 27.439, p = .007] grew, rates of obesity also increased. Table 4.2-15 describes
the relationship between self-measured weight, health status indicators and gender.
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Table 4.2-15 Self-Measured Overweightness16 & Health Status Indicators
Males - overweight Females -overweight
↑ K10 score χ² (6, n = 339) = 15.973, p = .014 χ² (6, n = 229) = 21.361, p = .002
Mental Health χ² (2, n = 229) = 10.387, p = .006
Sight/Speech χ² (12, n = 399) = 29.561, p = .003
Bodily Pain χ² (10, n = 399) = 19.718, p = .032.
Cardiovascular χ² (2, n = 399) = 7.139, p = .026
Diabetes χ² (2, n = 399) = 8.115, p = .017.
Respondents who were overweight and obese report being more vulnerable to
fatigue whilst working day shifts [χ² (6, n = 604) = 16.625, p = .011], evening shifts
[χ² (8, n = 223) = 16.462, p = .036] (females only) and night shifts χ² [(8, n = 604) =
17.956, p = .022] as against those who were not overweight or obese. Females who
were obese were less likely to report a positive job satisfaction score [χ² (4, n = 229) =
11.778, p = .019] as against those who were not obese. Males [χ² (8, n = 399) = 60.976,
p = .000] and females [χ² (8, n = 229) = 40.762, p = .000] with poor health status were
more likely to report being obese than those with fair, good and excellent health status.
Waist – Hip Ratio
Respondents were provided with a set of guidelines and asked to measure waist
and hip circumference from which the waist-hip ratio was calculated. Waist-hip ratio
is regarded as a more accurate measure of central adiposity which brings with it a
greater risk of CVD (Ortega et al., 2010). Excessive central adiposity for females is a
16 Overweightness was calculated from self-reported measures
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waist-hip ratio > 0.81 and for males a waist-hip ratio of > 0.91 (Nishida, Ko, &
Kumanyika, 2010).
Table 4.2-16 describes central adiposity of the respondents based on waist-hip
ratio which was higher by approximately 10% for both genders compared to the
Australian population. Using waist-hip ratio, 81.6% of males and 69.4% of females
were overweight. Overall, 77.7% of respondents were overweight using waist-hip
ratio. In this section the terms overweightness and central adiposity were used
interchangeably.
Table 4.2-16 Central Adiposity of Respondents
Male % Female %
< 0.81 4.0 30.6
0.81 - 0.90 14.4 38.9
> 0.90 81.6 30.5
Legend: Red shading = above normal central adiposity. Green shading is normal.
There was a statistically significant association between waist-hip measurement
and self-measured BMI. Males, [χ² (4, n = 399) = 45.596, p = .000] and females, [χ²
(4, n = 162) = 11.662, p = .020] who were overweight and obese, reported waist-hip
measurements greater than 0.90 as against those of normal weight. Of those who self-
reported normal weight, 67.9% had a higher than normal central adiposity, whilst
individuals who self-reported they were overweight, 93.5% had higher than normal
central adiposity [χ² (6, n = 520) = 40.283, p = .000]. Of the respondents that were
diagnosed with CVD, 88.24% had a higher than normal waist-hip ratio [χ² (2, n = 520)
= 11.968, p = .003] and those who completed year 10 at high school were more likely
to have a higher than normal waist-hip ratio than people who completed year 12 [χ² (8,
n = 520) = 25.873, p = .001]. Managers and patient transport officers (paramedic
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category) were more likely to have a higher than normal waist-hip ratio [χ² (12, n =
520) = 22.150, p = .036] than other employment categories.
As health status decreased, the number of males with a waist-hip ratio greater
than 0.90 increased [χ² (8, n = 520) = 40.565, p = .000]. Females who were current
shift workers reported being more overweight or obese [χ² (2, n = 167) = 8.873, p =
.012], compared to those who do not perform shift work. As shift work years [χ² (12,
n = 520) = 47.890, p = .000] and years in ambulance [χ² (12, n = 520) = 53.400, p =
.000] increased, so did waist-hip ratio.
Blood Pressure
As self-reported health status decreased, there was an increase in the proportion
of respondents with a systolic blood pressure greater than 140mmHg [χ² (12, n = 644)
= 35.729, p = .000] and those with a diastolic blood pressure greater than 90mmHg [χ²
(8, n = 644) = 35.138, p = .000]. Four-point two percent of respondents self-measured
a blood pressure greater than 140/90mmHg compared to 21.5% in the Australian
population (ABS, 2013e) [OR = 0.147, 95% CI (0.049 – 0.447), p = 0.001].
Males, [χ² (6, n = 396) = 31.161, p = .000] and females, [χ² (6, n = 217) = 24.881,
p = .000] who were overweight and obese were more likely to report a systolic blood
pressure > 130mmHg and a diastolic blood pressure > 90mmHg than those who were
not overweight or obese. Respondents who had a waist-hip ratio of > 0.90 also reported
systolic blood pressure > 130mmHg [χ² (6, n = 519) = 39.927, p = .000] and a diastolic
blood pressure > 90mmHg [χ² (4, n = 519) = 11.403, p = .022]. As systolic BP
increased, respondents reported increased fatigue [χ² (9, n = 664) = 22.193, p = .008],
and males reported an increased intensity of fatigue [χ² (6, n = 397) = 13.378, p = .037].
Females who smoke reported systolic blood pressures > 140mmHg [χ² (3, n = 228) =
19.083, p = .000] and diastolic blood pressures > 90mmHg [χ² (2, n = 228) = 6.861, p
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= .032]. Table4.2-17 shows the statistically significant associations for those
respondents who reported a blood pressure ≥ 140/90mmHg.
Table 4.2-17 Hypertension & Health Status Indicators
Gender Chi-squared d.f. n Sig
MHD Male 8.705 3 416 0.033
Bodily Pain Male 25,879 15 416 0.039
Disability (S & H) Male & Female 35.308 18 644 < 0.05
Arthritis Female 17.164 6 228 <0.05
CVD Male 17.949 3 416 <0.001
Diabetes Male 17.053 3 416 0.001
Abbreviations: MH = mental health disorder, CVD = cardiovascular disease, d.f. – degrees of freedom, n = frequency, Sig = significance, S&H = sight and hearing.
Exercise
Exercise hours for walking, moderate and vigorous exercise were totalled for
two weeks, grouped and analysed against all other data elements and are described in
Table 4.2-18.
Australian population hours were not included as they were based on pedometer
readings over eight days, whilst AHS 2015 data was self-reported. Only 223
respondents answered all questions that allowed exercise hours to be calculated. The
proportion of female respondents who exercised < 10 hours per fortnight increased [χ²
(9, n = 223) = 18.202, p = .033] as health status decreased.
Alcohol use showed an inverse relationship with exercise. As the proportion of
respondents who exercised at higher levels increased, the number of alcoholic drinks
consumed by those respondents in seven days decreased [χ² (12, n = 161) = 21.424, p
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= .045]. Additionally, the number of times five or more alcoholic drinks were
consumed in one year [χ² (15, n = 81) = 28.643, p = .018] decreased.
Table 4.2-18 Exercise Hours - Respondents
< 10 hours 10-19 hours 20-29 hours >29 hours
% 18.4 48.4 17.1 16.1
Sitting
Sitting hours in a workday, included all sitting in a 24-hour period, not just that
which occurred at work. Supervisors and EMDs [χ² (24, n = 580) = 67.716, p = .000]
were more likely to sit for > 14 hours per day than paramedics. Those respondents who
do not work at stations and work at category two stations tended to sit for greater than
14 hours per day [χ² (15, n = 580) = 45.984, p = .000]. Mean sitting hours are shown
by gender in Table 4.2-19.
As sitting hours increased, females who consumed five alcoholic drinks twice
per week also increased [χ² (18, n = 35) = 30.270, p = .035] and males who had
increased alcohol consumption over the previous year also increased [χ² (6, n = 364)
= 13.080, p = .042]. As sitting hours increased, males, [χ² (6, n = 352) = 21.552, p =
.001] and females, [χ² (6, n = 198) = 14.643, p = .023] who were overweight and obese
increased as did respondents who smoke [χ² (3, n = 580) = 9.574, p = .023].
Respondents with a high K10 score were more likely to sit for greater than 10 hours
per day [χ² (9, n = 373) = 20.152, p = .017] compared to those respondents with a low
K10 score.
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Table 4.2-19 Mean Sitting Hours - Respondents
Sitting Hours Male (%) Female (%) Mean
5-9 10.2 11.6 10.7
10-14 29.8 27.6 29.0
> 14 60.0 60.8 59.3
Tobacco Smoking
Eight point nine percent of respondents reported current tobacco smoking
compared to 18.2% in the Australian population (ABS, 2013d). EMDs and PTOs were
more likely to smoke than other employment types [χ² (8, n = 663) = 16.759, p = .033].
As the health status of respondents declined, it was more likely that smoking increased
[χ² (4, n = 663) = 15.361, p = .004] compared to those who have improved health
status.
Females who smoked were more likely to consume five or more alcoholic drinks
twice per week [χ² (6, n = 43) = 13.805, p = .032]. Females who smoked also reported
systolic blood pressures greater than 140mmHg [χ² (3, n = 228) = 19.083, p = .000]
and a diagnosis of cancer [χ² (1, n = 241) = 14.680, p = .000], than females who did
not smoke. Females who had thoughts of leaving were more likely to smoke [χ² (1, n
= 241) = 5.092, p = .024], compared to those females without thoughts of leaving.
Males [χ² (1, n = 402) = 4.246, p = .039] and females [χ² (1, n = 241) = 9.551, p
= .002] who smoked tended to report having asthma, coughing, wheezing, SOB and
chest tightness. Respondents who were underweight and overweight were more likely
to smoke [χ² (3, n = 422) = 12.647, p = .005] compared to those who were of normal
weight. Males, [χ² (9, n = 422) = 17.165, p = .046] and females, [χ² (7, n = 241) =
14.277, p = .046] who smoked tended to have sinusitis, anaemia and bronchitis.
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Males who smoked, reported being obese [χ² (2, n = 399) = 9.519, p = .009] and
reported their sight problems were due to diabetes [χ² (2, n = 246) = 7.761, p = .021].
Males who smoked, ‘strongly disagree’ the work unit had a sense of community [χ²
(4, n = 422) = 11.521, p = .021] and a shared vision [χ² (4, n = 422) = 11.847, p =
.019]. As the K10 score increased, males who smoked also increased [χ² (3, n = 299)
= 8.275, p = .040]. Males who took medication for mental illness reported being
smokers [χ² (1, n = 422) = 4.088, p = .043].
Diet
Current Australian guidelines call for two serves of fruit and five serves of
vegetables per day. Appendix C, Table 8.8 shows 38.5% (51.7% in the Australian
population) of respondents do not eat the recommended quantity of fruit and 95.8 %
(91.7% in the Australian population) do not eat the recommended quantity of
vegetables.
As fruit consumption increased, the proportion of male respondents who drank
6-10 alcoholic drinks per week decreased [χ² (24, n = 290) = 40.614, p = .018] and also
reported alcohol consumption had decreased over the last year [χ² (14, n = 647) =
27.296, p = .018]. As vegetable consumption increased, the proportion of males who
drank 6-10 alcoholic drinks per week also decreased [χ² (28, n = 290) = 55.260, p =
.002]. As fruit consumption increased, males who report alcohol or drug abuse also
decreased [χ² (35, n = 422) = 97.927, p = .000] as did males who reported a serious
illness [χ² (28, n = 422) = 114.403, p = .000]. Appendix C, Table 8.9 describes the
associations between fruit and vegetable consumption, health and work status
elements. Males who consumed one serve or less of fruit [χ² (7, n = 422) = 26.578, p
= .000] and vegetables [χ² (7, n = 422) = 16.489, p = .021] per day tended to be
smokers.
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Alcohol Consumption
The mean number of alcoholic drinks consumed by respondents in one week was
eight. Appendix C, Table 8.10 shows the reported frequency of alcohol consumption
by categories of staff. Six percent of respondents drank alcohol daily compared to 8%
in the Australian population (NHMRC, 2009), whilst 50.1% of respondents drank
alcohol weekly compared to 41% in the Australian population. Respondents had a
mean weekly consumption of alcohol of one drink per day. For comparative purposes,
consumption of alcohol between 15 but not more than 28 drinks per week was
considered high risk drinking (AIHW, 2016). Eight-point three percent of respondents
drank alcohol at this level compared to 18.2% in the Australian population (AIHW,
2016c). Managers drank alcohol more often than other employment types in the five
to six (17.4%) and three to four (30.4%) days per week categories.
Approximately 3.3% (17% in the Australian population (NHMRC, 2009)) of
respondents did not drink alcohol in the last year and 2.4% had never consumed
alcohol (10% in the Australian population (NHMRC, 2009)). The most common
drinking level was 1-2 days per week (26.3%). One hundred and thirty-seven
respondents (20.7%) consumed more than five alcoholic drinks per day at least once
per week.
Females who work 180 hours per month consumed up to 10 alcoholic drinks per
week [χ² (12, n = 151) = 30.128, p = .003]. Males with poor self-reported health drank
greater than 20 alcoholic drinks per week [χ² (16, n = 290) = 29.684, p = .020] and
males with poor to fair self-reported health increased their alcohol intake in the
previous 12 months [χ² (8, n = 411) = 22.445, p = .004]. As years in ambulance
increased, females consumed five or more alcoholic drinks at least once per week [χ²
(30, n = 43) = 51.585, p = .008]. Males who reported sleeping 4-6 hours on rostered
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days off, consumed five or more alcoholic drinks three times per week [χ² (8, n = 432)
= 16.455, p = .036]. Males who reported poor to fair quality of sleep when working
night shifts consumed alcohol up to 10 times per week [χ² (16, n = 177) = 31.303, p =
.012], and females, [χ² (24, n = 43) = 38.385, p = .032] who had poor quality sleep on
rostered days off, were more likely to consume five or more alcoholic drinks three
times per week. Females who reported constant fatigue at work consumed up to 10
alcoholic drinks per week [χ² (12, n = 157) = 58.655, p = .000] or five alcoholic drinks
up to twice per week [χ² (18, n = 43) = 44.420, p = .001]. Females [χ² (16, n = 131) =
38.314, p = .001] who reported lack of time as a barrier to exercise reported consuming
five or more alcoholic drinks > twice per week. Males who report a lack of time [χ²
(12, n = 411) = 22.988, p = .028] and lack of energy [χ² (19, n = 411) = 21.019, p =
.021] as a barrier to exercise had increased alcohol consumption over the previous 12
months.
Stressors
Males who reported stressors because of job insecurity, alcohol, drugs or
violence [χ ² (15, n = 422) = 426.436, p = .000] were overweight and reported having
stressors because of serious illness or death of a close friend or relative [χ² (12, n =
422) = 453.444, p = .000]. Managers were more likely to report a serious illness [χ²
(32, n = 663) = 46.564, p = .046] compared to paramedics and EMDs. Males who
reported divorce or job insecurity [χ² (5, n = 422) = 14.600, p = .012] tended to have
thoughts of leaving and had an increased K10 score [χ² (15, n = 422) = 64.714, p =
.000]. Females, [χ² (9, n = 241) = 24.842, p = .003] who reported divorce and job
insecurity had an increased K10 score and a diagnosed mental health condition [χ² (5,
n = 422) = 30.862, p = .000]. Males who experienced one or more stressors are reported
in Table 4.2-20. Males who were divorced [χ² (5, n = 422) = 17.464, p = .004] tended
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to report cancer. Males who reported job insecurity [χ² (5, n = 422) = 24.514, p = .000],
stressors because of gambling or a serious illness or disability [χ² (4, n = 422) = 24.660,
p = .000] tended to have diabetes. Males, [χ² (5, n = 422) = 24.527, p = .000] and
females, [χ² (3, n = 241) = 16.521, p = .001] who reported stressors because of divorce,
job insecurity and a serious illness, tended to smoke tobacco.
Table 4.2-20 Male Respondents with One or More Stressors
Variable Chi-squared d.f. n Sig
16-20 Alcoholic drinks/wk 9.506 4 290 0.050
≥ 5 alcoholic drinks, 4 times/wk 23.687 12 94 <0.050
↑ alcohol last year 10.139 2 411 <0.050
Constant anxiety 10.322 3 422 <0.050
High anxiety 7.493 2 352 <0.050
Abbreviations: < = less than, ≥ = greater and equal to, wk = week, ↑ = increased, d.f = degrees of freedom.
Sleep
The AHS 2015 was designed with the identical questions in regards sleep as
those used in ‘A Review of the Work Practices, Workload and Health Profiles of
Queensland Ambulance Service Operational Personnel: Implications for Resource
Allocation and Health Management’ (Parker, A.W. & Hubinger, 2003), so that
comparisons could be made, (see Figure 4.5).
In relation to the AHS 2015 data, seven to eight-hour sleep patterns decreased
between day, evening and night shifts and on-call, and increased on rostered days off.
Respondents who sleep < 4 hours increase from day shift to evening shifts and night
shift. In comparing the two data sets, except for 7-8 hours and > 8 hours on rostered
days off (where there was a slight increase), all other comparisons show respondents
slept less hours in 2015 than were reported in 2003.
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Abbreviations: RDO = Rostered days off.
Legend: 2003 = Health and Work Profiles in Ambulance Service Operational Personnel (Parker, A.W. & Hubinger, 2003); 2015 = Ambulance health Survey 2015.
Figure 4-5. Sleep Hours: 2003 vs. 2015
EMDs and managers reported sleeping between 4-6 hours, whilst patient
transport officers, students, advanced care and critical care paramedics and supervisors
tended to sleep 6-8 hours [χ² (24, n = 663) = 80.858, p = .000] when working day
shifts. Respondents with a higher degree were predisposed to sleeping 4-6 hours on
rostered days off [χ² (12, n = 663) = 24.784, p = .016]. As those who sleep 4-6 hours
increased [χ² (12, n = 422) = 30.652, p = .002] health status decreased and quality of
sleep for males, [χ² (16, n = 422) = 40.522, p = .001] and females, [χ² (16, n = 241) =
33.868, p = .006] also decreased, whilst working day shifts. As health status declined,
7-8-hour male sleepers on rostered days off also declined [χ² (12, n = 422) = 41.363, p
= .000] and males who described their sleep as ‘poor’ increased [χ² (16, n = 422) =
47.977, p = .000].
Females were more likely to sleep less hours when working day shifts than males
[χ² (18, n = 241) = 32.313, p = .020] and as shift work years increased, male, [χ² (24,
n = 299) = 38.419, p = .031] and female, [χ² (18, n = 188) = 50.375, p = .000] 4 – 6
0
10
20
30
40
50
60
70
<4hours2003
<4hours2015
4‐6hours2003
4‐6hours2015
7‐8hours2003
7‐8hours2015
>8hours2003
>8hours2015
Day
Evening
Night
RDO
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hour sleepers increased. Males, [χ ² (24, n = 442) = 76.789, p = .000] and females, [χ ²
(24, n = 241) = 56.312, p = .000] reported decreasing hours of sleep, as years in
ambulance increased. Sleep hours by shift pattern and on rostered days off are shown
in Figure 4.6.
Abbreviations: 2003 = Health and Work Profiles in Ambulance Service Operational Personnel (Parker, A.W. & Hubinger, 2003); 2015 = Ambulance Health Survey 2015; RDO = Rostered days off.
Figure 4-6. Sleep Hours vs. Shift Pattern
Unsurprisingly, sleep quality decreased as shifts progressed from day, through
evening to night. However, sleep quality for all respondents improved on rostered days
off. Additionlly, respondents who had poor and very poor sleep were less in 2015 than
2003 and those who had fair sleep in 2015 were more than 2003. Whilst hours of sleep
had declined between 2003 and 2015, quality of sleep improved.
Appendix C, Table 8.11 describes positive and negative associations with sleep
not previously mentioned. Males who report poor quality of sleep on rostered days off,
reported increased systolic BP [χ² (12, n = 416) = 21.342, p = .046] and decreased
0
10
20
30
40
50
60
Day Shift Evening Shift Night Shift RDOs
Very Poor2003
Very Poor2015
Poor2003
Poor2015
Fair2003
Fair2015
Good2003
Good2015
Very Good2003
Very Good2015
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sleep > 8 hours [χ² (9, n = 644) = 19.602, p = .021]. Males, [χ² (9, n = 422) = 34.515,
p = .000] and females, [χ² (6, n = 241) = 14.250, p = .027] who reported very poor to
poor quality of sleep whilst working day shift were more likely to sleep less than six
hours compared to those who reported fair to good quality sleep.
4.2.4 Organisational Symptomology
Thoughts of Leaving the Ambulance Service
Fifty-one-point six percent of respondents had thoughts of leaving the
ambulance service in the last year. Of these, 60.5% (n = 207) were males and 39.5%
(n = 135) were females. The reasons for considering leaving the ambulance service are
described in Figure 4.7.
The odds of a male respondent having thoughts of leaving the ambulance service
were 2.25 times greater than a female [OR = 2.25, 95% CI (1.28 -3.96), p = 0.005].
However, females and males had similar reasons for considering leaving if the data
was considered in relation to the top five motives. The top five were other, family
pressures, shift work, health and work pressures.
Males with thoughts of leaving were more likely to report arthritis [χ² (1, n =
422) = 4.445, p = .035], moderate body pain [χ² (5, n = 422) = 22.351, p = .000], bodily
pain that interferes with work [χ² (4, n = 422) = 24.841, p = .000], a diagnosed mental
health condition [χ² (1, n = 422) = 5.585, p = .018], having a long term condition such
as sinusitis, allergies, anaemia, and emphysema [χ² (9, n = 422) = 31.021, p = .000],
poor to fair self-reported health [χ² (4, n = 422) = 14.124, p = .007], and greater shift
work years [χ² (6, n = 422) = 16.046, p = .014] than those without thoughts of leaving.
Additionally, males, [χ² (1, n = 422) = 12.051, p = .001] and females, [χ² (1, n = 241)
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= 5.321, p = .021] with thoughts of leaving the ambulance service were more likely to
have cancer than those without thoughts of leaving.
Figure 4-7. Reasons for Considering Leaving the Ambulance Service17
Females who had thoughts of leaving, reported drinking more alcohol than the
same time last year [χ² (2, n = 236) = 6.390, p = .004] and had greater years in
ambulance [χ² (6, n = 241) = 20.538, p = .002] than those females without thoughts of
leaving.
Work Related Health Culture
Work related health culture was measured using four questions from the Lifegain
Health Culture Audit. The questions related to how people stay healthy, individual
attitudes and personal perceptions concerning health whilst working and were chosen
to help in understanding the work-related health culture in an ambulance service. There
were no statistically significant associations between gender and any elements of
work-related health culture. Critical care, advanced care paramedics and EMDs, who
are most of the active AOP, were more likely to regard the work-related health culture
17 The total for Figure 4-7 is more than 100% as respondents could select more than one answer.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
in a negative sense [χ² (8, n = 594) = 35.454, p = .000] than supervisor/managers. An
overall score from all respondents is provided in Table 4.2-21 and shows that 60.8%
of respondents reported a negative work-related health culture in their work
environment.
Table 4.2-21 Work Related Health Culture
n %
Negative Health culture 403 60.8
Positive Health culture 260 39.2
Total 663 100.0
Respondents who had a trade certificate or an undergraduate degree were more
likely to agree there was a sense of community in the workplace than those with a
diploma. As self-reported health status decreased [χ² (16, n = 422) = 27.5656, p = .036]
and shift work years increased [χ² (24, n = 442) = 36.847, p = .045], it was likely that
males who agreed there was a sense of community decreased. Reporting their
supervisor did not support a healthier lifestyle was associated with CVD [χ² (4, n =
663) = 11.689, p = .020], males who took medication for mental illness [χ ² (4, n =
422) = 10.622, p = .000] and thoughts of leaving [χ² (4, n = 663) = 24.225, p = .000].
A positive outlook at work [χ² (8, n = 663) = 19.967, p = .010] and a sense of
community [χ² (8, n = 663) = 17.908, p = .022] was inversely associated with arthritis
cancer, bodily pain, CVD, those who do not work at stations and thoughts of leaving.
Respondents who were employed at category five stations and those who were not
employed at stations were more likely to not report a positive outlook in the workplace,
[χ² (4, n = 663) = 9.937, p = .042].
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Job Satisfaction
There were 17 elements to the job satisfaction scale. These elements and
frequencies are described in Appendix C, Table 8.13. Respondents were able to select
more than one element. Whilst there were many statistically significant associations
(SSA) between the 17 elements of job satisfaction and other variables, only the most
important are described in this section and males report most of the negative effects.
The overall results of the job satisfaction assessment are presented in Table 4.2-22.
Table 4.2-22 Job Satisfaction in an Ambulance Service
n %
Depressing Job (1-10)
Bad Job (11-16)
Ok Job (17-22)
Good Job (23-28)
Great Job (29-34)
Total
110 16.6
135 20.4
165 24.9
128 19.3
125 18.9
663 100.0
Job satisfaction by age groups and gender is shown in Figure 4.8 and Figure 4.9.
It shows a difference between genders via age groups. For instance, females in the 20-
24 age group show an even distribution of the five categories of job satisfaction. While
males report no ‘bad’ or ‘depressing’ job satisfaction in this age group. ‘Bad’ and
‘depressing’ rates are higher for females in 25-34 age group and are consistent with
males in the 35-44 age group. In addition, job satisfaction improves for female after
the 25-34 age group and male rates continue to decline until the age of 55, where they
start to improve.
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Figure 4-8. Male Job Satisfaction vs. Age Grouped
Figure 4-9. Female Job Satisfaction vs. Age Grouped
Managers felt less positive at work [χ² (8, n = 663) = 41.437, p = .000], knew
less of what was expected of them at work [χ² (8, n = 663) = 22.326, p = .004] and had
fewer positive interactions at work [χ² (8, n = 663) = 15.506, p = .050] than EMDs or
paramedics. Current male shift workers were more likely to not report a positive job
satisfaction score [χ² (2, n = 422) = 8.400, p = .015] than male non-shift workers.
As shift work years increased, males reported being not recognised and
appreciated at work [χ² (12, n = 422) = 27.891, p = .006], felt as though their supervisor
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
15‐24 25‐34 35‐44 45‐54 55‐64
Male
Ok Good Great
Depressing Bad Linear (Bad)
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
15‐24 25‐34 35‐44 45‐54 55‐64
Female
Ok Good Great Depressing Bad
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does not care about them as a person [χ² (12, n = 422) = 21.415, p = .045] and did not
trust the leadership team, [χ² (12, n = 663) = 23.224, p = .026]. Females with a higher
degree felt as though their opinion counts, [χ² (8, n = 241) = 15.625, p = .048].
Appendix C, Table 8.13 shows those who had increased alcohol consumption
over the last year tended not to have a positive job satisfaction score (see Appendix C,
Table 8.14). Respondents with ‘good’, ‘very good’ and ‘excellent’ self-reported health
agreed that their personal values fit with organisational values [χ² (8, n = 663) =
19.760, p = .011] and trusted the leadership team [χ² (8, n = 663) = 17.083, p = .029]
as against those who had ‘fair’ and ‘poor’ self-reported health.
Respondents who were employed at category two stations were more likely to
report positive job satisfaction scores in their workplace. Respondents who were not
employed at stations [χ² (10, n = 663) = 18.711, p = .044] or with ‘thoughts of leaving’
[χ² (2, n = 663) = 35.678, p = .000] were less likely to report a positive job satisfaction
score in their workplace.
Anxiety whilst working
The questions on anxiety in the AHS 2015 were less about trying to diagnose an
anxiety disorder and more about finding out how prevalent non-clinical anxiety was in
the workplace, and how that changes with three elements: not getting a rest break
during a shift, being fatigued at work and working involuntary overtime. Eighty-four-
point four percent of respondents reported anxiety whilst working: 60% occasionally
and 24.4% frequently to constantly. In addition, respondents described their anxiety at
work as 55.2% mild, 25.8% moderate and 3.5% high. Forty-three-point seven percent
reported their anxiety increased when fatigued. Increased anxiety when working
involuntary overtime was reported as 73.6% ‘none to a little’ and 26.4% as ‘quite a bit
to very much’.
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Compared to females with undergraduate degrees, males with undergraduate
degrees were more likely to experience increased anxiety when fatigued [χ² (8, n =
402) = 16.901, p = .031]. Additionally, females with higher degrees were predisposed
to reporting anxiety when working involuntary overtime [χ² (12, n = 241) = 35.108, p
= .000] compared to males with higher degrees. Respondents who were employed at
category five stations tended to report increased anxiety when working involuntary
overtime [χ² (15, n = 663) = 65.141, p = .000]. Respondents with poor self-reported
health experienced anxiety frequently [χ² (8, n = 560) = 28.938, p = .000] and described
that anxiety as high [χ² (16, n = 447) = 28.312, p = .029]. As shift work years increased,
females experienced increased anxiety because of having to work involuntary overtime
[χ² (18, n = 241) = 33.625, p = .014]. As anxiety in females increased, so did alcohol
consumption [χ² (6, n = 236) = 18.133, p = .006]. Females who described moderate
anxiety consumed 6-10 alcoholic drinks in seven days [χ² (8, n = 138) = 15.873, p =
.044].
Males who had been diagnosed with cancer experienced anxiety at work on a
frequent basis, [χ² (3, n = 422) = 14.692, p = .002] and described anxiety as moderate
[χ² (2, n = 560) = 7.270, p = .026]. Males who had ‘thoughts of leaving’ the ambulance
service tended to experience: moderate anxiety [χ² (2, n = 352) = 28.854, p = .000],
high anxiety when fatigued [χ² (2, n = 402) = 14.353, p = .001] and working
involuntary overtime [χ² (3, n = 422) = 34.692, p = .000]. The remaining paragraphs
report on the positive associations discovered during the analysis of the AHS 2015
data in relation to non-clinical anxiety.
Respondents who reported their immediate supervisor supported efforts to adopt
a healthier lifestyle did not report moderate to high anxiety [χ² (12, n = 663) = 24.773,
p = .016] and described their anxiety as mild [χ² (8, n = 352) = 15.599, p = .048]. Males
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who believed their immediate supervisor supported efforts to adopt a healthier lifestyle
were less likely to report high levels of anxiety when working involuntary overtime
[χ² (12, n = 422) = 35.934, p = .000] compared to those who reported their supervisor
does support a healthier lifestyle. Males, [χ² (12, n = 422) = 50.886, p = .000] and
females, [χ² (12, n = 241) = 34.182, p = .001] who described a positive outlook in the
workplace tended to report only occasional anxiety at work and described that anxiety
as mild. Males [χ² (12, n = 422) = 47.990, p = .000] and females [χ² (12, n = 241) =
23.001, p = .028] who described a sense of community in the workplace were less
inclined to report moderate to high anxiety. Males were more likely to describe that
anxiety as mild [χ² (8, n = 352) = 20.308, p = .009].
Males, [χ² (12, n = 422) = 30.082, p = .003] and females, [χ² (12, n = 241) =
47.522, p = .000] who described a shared vision in the workplace did not report
moderate to high anxiety and described it as ‘mild’ [χ² (8, n = 352) = 27.341, p = .001].
Males [χ² (12, n = 422) = 30.028, p = .000] and females [χ² (12, n = 241) = 30.028, p
= .003] who described a shared vision in the workplace were less inclined to report
moderate to high levels of anxiety when working involuntary overtime.
Respondents who had a positive job satisfaction score were less likely to report
moderate to high anxiety [χ² (6, n = 663) = 20.293, p = .002]. Respondents with a
positive job satisfaction score only reported ‘not at all to a little’ vulnerability to
anxiety when they worked involuntary overtime χ [² (6, n = 663) = 16,895, p = .010].
Fatigue
A large number of rosters include a cycle of 4 shifts on and 4 * 24 hour periods
off work. Within that roster shifts are often 12 hours and can be extended up to 13 or
14 hours with a late case. There is little choice for paramedics in completing an
extended shift. What also extends a shift is post shift fuelling, cleaning, and completing
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patient reports, drug audits and time sheets. Table 4.2-23 depicts how often fatigue
was experienced, how it was described and during which part of a shift fatigue was
more prominent. Figure 4.10 shows the intensity of fatigue for the different shift cycles
and how that fatigue changes throughout the events. It should be noted, that having no
rest break during a shift had worse fatigue effects than that which occurs during night
shifts and that fatigue experienced as a result of involuntary overtime had nearly the
same affects as that which occurs during night shifts. Linear trend lines for quite a bit
and very much fatigue show an increased rate of fatigue throughout the events.
Additionally, ‘very much’ fatigue increased at a greater rate than ‘quite a bit’ of
fatigue.
Table 4.2-23 Fatigue Experience in the Ambulance Service
How often fatigue? Occasionally Frequently Constantly
49.9% 39.1% 7.2%
How described? Mild Moderate High
43.0% 46.6% 6.6%
Which part of shift? Start Middle End On-Call
7.5% 27.0% 51.4% 10.3%
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Figure 4-10. Fatigue Changes Throughout the Shift Cycle.
All operational positions described some fatigue on night shifts with, advanced
care and critical care paramedics experiencing higher levels of fatigue than other
employment types [χ² (28, n = 638) = 173.721, p = .000]. Current male shift workers
experienced increased fatigue if they did not get a rest break during a shift [χ² (3, n =
403) = 12.375, p = .006] and if they worked involuntary overtime [χ² (3, n = 403) =
15.536, p = .001].
Respondents with thoughts of leaving, experienced fatigue more often [χ² (3, n
= 663) = 55.142, p = .000]. They also described fatigue in the moderate to severe range
[(2, n = 638) = 24.447, p = .000]. Additionally, age had a strong positive correlation
with shift work years, [r = 0.782, n = 662, p < 0.001] and as shift work years or age
increased, those respondents who reported vulnerability to fatigue whilst working
evening shifts reported increased fatigue [χ² (24, n = 638) = 43.630, p = .008] as against
those who did not report vulnerability to fatigue whilst working evening shifts.
Males who were employed at category five stations experienced increased
fatigue [χ² (15, n = 422) = 25.982, p = .038] and males, [χ² (20, n = 402) = 66.763, p =
0.00%
10.00%
20.00%
30.00%
40.00%
50.00%
60.00%
70.00%
Percentage
Not at all
A little
Quite a bit
Very much
Linear (Quite a bit)
Linear (Very much)
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.000] and females, [χ² (20, n = 232) = 48.238, p = .000] who were employed at category
one, two, three and four stations were vulnerable to fatigue when working on-call.
Respondents who described a work-related health culture as negative, reported
increased fatigue [χ² (3, n = 594) = 30.542, p = .000].
In contrast to those who described a negative job satisfaction score, males who
reported a positive job satisfaction score, described less moderate to high fatigue at
work [χ² (6, n = 422) = 24.196, p = .000] and reported that fatigue as mild [χ² (4, n =
403) = 14.502, p = .006]. Males who described a positive job satisfaction score
reported less moderate to high fatigue when working day shifts [χ² (6, n = 403) =
21.253, p = .002], night shifts [χ² (8, n = 403) = 18.647, p = .017], on-call [χ² (8, n =
634) = 19.967, p = .010] (males and females) and involuntary overtime [χ² (6, n = 403)
= 18.329, p = .005]. Table 4.2-24 describes vulnerability to fatigue throughout the shift
cycle.
Table 4.2-24 Shift Cycle Fatigue and a Positive Job Satisfaction Score
Vulnerability Effects Chi-squared n d.f. p
Day shift ♂ A little 21.253 403 6 0.002
Night shift A little – quite a bit 18.647 403 8 0.017
Regular Breaks A little 19.967 634 8 0.010
Involuntary overtime ♂ A little 18.329 403 6 0.005
Involuntary overtime ♀ A little 17.598 235 6 0.007
On call♂ & ♀ None-a little 13.920 592 6 0.031
Abbreviations: χ² = chi-squared, n = respondents, d.f. = degrees of freedom, p. = significance, ♂ = male, ♀ = female.
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4.2.5 Personal Interests / Caring for Self
Formal Breaks
As Appendix C, Table 8.17 suggests, regular rest breaks were associated with an
increased job satisfaction score, less fatigue, lower barriers to exercise, higher
performance than most other workers on the job, improved quality and hours of sleep
and their workplace having a positive outlook, shared vison and sense of community.
Those least likely to get regular rest breaks were ACPs and managers [χ² (8, n = 663)
= 41.437, p = .000].
The question was asked in the AHS2015 why individual do not take breaks,
which is different from asking who gets regular breaks. These results are presented in
Table 4.2-25and show some surprising results. A proportion of EMDs reported they
do not get formal breaks, even though they have formal breaks built into their roster.
Paramedics and supervisor/managers indicated the number one reason they do not take
regular breaks is pressure to get work done and the second most reason was eating on
the run. The latter may be habit and related to pressure to get work done. It should be
noted that a formal break has benefits other than being able to have a meal.
Appendix C, Table 8.18 reports on the negative associations if regular rest breaks
are not achieved, such as reduced health status, higher K10 score, bodily pain, thoughts
of leaving and sitting hours.
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Table 4.2-25 Why Respondents Don’t Take Rest Breaks?
1. 2. 3. 4. 5.
EMD 14.6% 1.2% 4.9% 1.2% 4.9%
Sup/Man 39.1% 31.9% 4.3% 4.3% 5.8%
Paramedic 40.2% 35.2% 8.1% 1.1% 2.5%
Total 36.8% 30.3% 6.9% 1.8% 3.5%
Sig. <0.001 <0.001 >0.05 <0.05 >0.05
Abbreviations: Sup/Man = supervisor/manager, Sig = significance, 1 = Pressure to get work done, 2 = I eat on the run, 3 = I feel that time spent (e.g. chatting, returning, waiting at hospital, etc.) takes up my break time, 4 = I just don’t want to, 5 = I feel guilty.
Gender
Gender based results were predominantly described throughout chapter four.
However, gender-based issues that have not been previously mentioned are included
in this section. Females experienced symptoms of asthma or received treatment for
symptoms more often than males [χ² (1, n = 663) = 6.765, p = .009]. Males were more
likely to have a cardiovascular or circulatory disorder [χ² (1, n = 663) = 13.187, p =
.000] and have cholesterol checks [χ² (2, n = 663) = 19.931, p = .000] than females.
Females were more likely to be EMDs, but not so in terms of CCPs, supervisors/
managers [χ² (8, n = 663) = 70.862, p = .000], and be permanent part-time than males
[χ² (3, n = 663) = 21.783, p = .000]. Additionally, females had worked less than nine
years of shift work [χ² (6, n = 663) = 81.170, p = .000], did other work classified as
home duties [χ² (5, n = 663) = 25.015, p = .000] and were over represented in the
younger age group (18-24) [χ² (6, n = 663) = 91.239, p = .000]. Females were more
likely to have an undergraduate degree, whilst males were more likely to have post-
graduate qualifications [χ² (4, n = 663) = 19.556, p = .001].
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Barriers to exercise
Barriers to exercise were included in the AHS 2015 to assist in understanding
strategies that may lead to health improvement of AOP. As outlined in Table 4.2-26,
lack of time and lack of energy were identified as the major barriers to exercise.
Females were more likely than males to describes lack of energy to exercise when
working greater than 160 hours per month, χ² (12, N = 232) = 25.017, p = .015. The
relationships between these two elements and other variables of significance in the
data set will be the only two reported on further in this section.
Table 4.2-26 Major Barriers to Exercise
Never-rarely Sometimes Often-very often
n % n % n %
Lack of time 101 15.3 231 34.8 331 49.9
Lack of energy 181 27.3 281 42.4 201 30.3
Increased time and energy for exercise was associated with having regular rest
breaks [χ² (5, n = 663) = 13.137, p = .022], as was increased vegetable consumption
for males [χ² (42, n = 422) = 62.940, p = .020]. Appendix C, Table 8.19 describes the
statistically significant associations (SSAs) with lack of time and energy as a barrier
to exercise, such as: increased rates of asthma, overweight, bodily pain, increased K10
score, thoughts of leaving and shift work years.
Wellness Programs
Whilst 75.9% of respondents indicated they would be involved in health
programs if there were incentives, the only health status indicator that was associated
with being involved in wellness programs with incentives, was increasing bodily pain
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
[χ² (10, n = 663) = 19.311, p = .036]. There were three elements of both job satisfaction
and work-related health culture that were associated with being more likely to be
involved in health programs with incentives. These are described in Appendix C, Table
8.20.
Waist-hip ratio was inversely related to incentive-based wellness programs.
Respondents who had a waist-hip ratio > 0.81, [χ² (4, n = 520) = 12.990, p = .011]
were more likely to not be involved in incentive-based wellness programs compared
to those with a waist-hip ratio < 0.81. Males who were likely to be involved in an
incentive-based wellness program reported sleeping 7-8 hours whilst on rostered days
off [χ² (6, n = 663) = 12.598, p = .050] as against those who slept < 7 hours.
As years in ambulance increased, wellness facility use would also increase [χ²
(24, n = 662) = 43.965, p = .008], however incentives were less likely to make a
difference to involvement in wellness programs [χ² (12, n = 663) = 27.692, p = .006].
The use of wellness facilities was more likely to decrease as health status decreases [χ²
(16, n = 662) = 27.709, p = .034]. Respondents to the AHS 2015 indicated that rostered
days off were the preferred option for being involved in wellness programs (90.8%),
followed by after work (69.7%). Only 59.7% indicated they would be involved in
wellness programs during work.
Hours worked
Respondents were asked to calculate all hours worked, in the four weeks prior
to completing the survey, in all paid employment. Hours worked in the ambulance
service for all AOP would be expected to be 160 hours per person per month. Whilst
some of the hours worked were involuntary overtime, it was assumed that other hours
worked were the respondents choice and as such were included in this section. Hours
worked are described in Table 4.2-27. The mean number of hours worked was 165
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hours, SD = 51.11, with males working more hours than females (a mean of 172 vs
164 hours). Hours worked by age are described in Table 4.2-28. There was little
variation in hours worked between age groups and no associations between age and
hours worked when adjusted for gender. Finally, supervisors/managers were more likely
to work greater than 200 hours per month [χ² (24, n = 645) = 62.786, p = .000], as were
respondents with a higher degree [χ² (12, n = 645) = 28.574, p = .005].
Table 4.2-27 Hours Worked
Hours worked n %
<161 132 19.9 161-180 259 39.1 181-200 131 19.8 >200 123 18.6 Total 645 97.3 Missing 18 2.7
Total 663 100.0
Table 4.2-28 Hours Worked vs. Age
Age Mean n Std. Deviation
15-24 172.38 59 33.805
25-34 162.69 184 41.592
35-44 171.44 178 42.160
45-54 171.12 144 41.675
55-64 165.92 61 28.362
>64 130.67 3 32.332
Abbreviations: Std = standard deviation.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
4.3 Stage Two - Regression Modelling
This section was informed by a broad structural diagram, which is a conceptual
modelling tool, and defined dependent variables in five broad categories. Together with
the previous section, it assisted in creating an understanding of the associations and effect
sizes on dependent variables in these five categories as described in Table 4.3-1 and
Figure 4.11. The process of planning for this regression modelling is described in
Appendix D.
Figure 4-11. Diagrammatic Approach to a Structural Connectedness Model
Abbreviations: MHD = mental health disorder, K10 = psychological distress score, LTC = long term condition, SR -= self-reported, CVD = cardiovascular disease, MSK = musculoskeletal injury, BMI = body mass index, BP = Blood pressure, LR = logistic regression
The independent (predictor) variables from this analysis in the final models were
significantly associated with the dependant variable using Pearson’s Chi Square.
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Effect size was also calculated using Phi and Cramer’s V correlation coefficient.
Whether an independent variable was idiomatically associated with the dependant
variable was also considered in determining the inclusion of that variable. For instance,
performance at work was not reasonable as a predictor of asthma. However, being
overweight has already been associated with being a predictor of asthma (Beuther &
Sutherland, 2007). The full regression plan is shown in Appendix D.
Table 4.3-1 Regression Modelling – Dependant Variables by Category
Categories Dependent Variables
Health status SR Health MHD K10 Physical Disability
LTC
Chronic disease Asthma CVD Cancer Diabetes Arthritis Three
Organisational symptomology
Job Satisfaction
Health Culture
Consider Leaving
Rest Breaks
Caring for self Fatigue Sleep BtE Time
BtE Energy
Hours Worked
Risk factors MSK Injury
Weight BP Exercise Sitting Diet
Abbreviations: SR = self-reported, MHD = Mental health disorder, LTC = Long term condition, CVD = Cardiovascular disease, BtE = Barriers to exercise.
The modelling used binary or ordinal logistic regression (depending on the
number of factors in the dependant variable) and was run with all included independent
and confounding variables. The advantage of ordinal or binary logistic regression was
that it allowed the testing of several independent variables and an ordinal or binary
dependent variable in a single model. Using a backward elimination method, the
analysis continued until the most parsimonious model was reached.
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4.3.1 Health Status
Determinants of Self-Reported Health
Ordinal logistic regression was used to estimate the effects of age; waist/hip
ratio; BMI; SBP; DBP; alcohol consumption in the last 7 days; increased alcohol
consumption in the previous year; diabetes; gender and arthritis on self-reported
health. The final model was statistically significant [χ² = 97.22, 4 d.f. p < 0.001] and
the assumption of proportional odds (null hypothesis) could not be rejected (χ² = 1.80,
4 d.f. p = 0.773). The effect of age, waist/hip ratio, BMI and diabetes were statistically
significant (see Table 4.3-2).
Table 4.3-2 Predictors of Self-Reported Health
Predictor OR Sig 95% CI
Lower Upper
Diabetes 3.698 0.007 0.352 2.264
Age 1.017 0.028 0.002 0.033
BMI 0.866 0.000 -0.180 0.033
Waist/Hip 0.118 0.004 -3.589 -1.868
Abbreviations: OR = odds ratio, Sig = significance, CI = confidence interval.
The results indicated that the odds of an individual being in the next lowest
health category increased by a factor of 1.02 for every year of additional age (this was
more significant than it appears – it was a factor of 10.20 times in a decade), decreased
by a factor of 0.82 for every 10% decrease in waist hip-ratio, decreased by a factor of
0.13 for every additional unit decrease of BMI and increased by a factor of 3.70 if you
had diabetes. However, we cannot rule out the possibility of the OR for diabetes being
‘one’. The confidence interval contains one, indicating an equal possibility of two
responses: ‘yes’, it could be true or ‘no’, it may not be true.
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Determinants of a Mental Health Disorder
The results of the binary logistic regression modelling were statistically
significant, [χ² (4, n = 506) = 72.36, p < .001], indicating the model was able to
distinguish between respondents who reported and did not report a mental health
disorder. The model explained 23% of the variability of the mental health diagnosis
and correctly classified 88.4% of cases. Table 4.3-3 shows that three independent
variables made a statistically significant contribution to the prediction of mental health
diagnosis (asthma, anxiety and K10). The strongest predictor of a mental health
diagnosis was non-clinical anxiety with an OR = 4.11, followed by Asthma with an
OR = 2.74 and the K10 score with an OR = 1.15. Controlling for all other factors in
the model, the risk of having a mental health disorder was 4.11 times higher if the
person had moderate anxiety, 2.74 times higher if the person had asthma and 1.15
higher if they had a high K10 score.
Table 4.3-3 Predictors of MHD
95% C.I.
β S.E. Wald d.f. Sig. OR Lower Upper
Anxiety -1.410 .545 6.698 1 .010 4.11 1.41 11.90
Asthma -1.010 .296 11.629 1 .001 2.74 1.64 4.90
K10 .137 .023 34.209 1 .000 1.147 1.095 1.200
Constant -3.020 .790 14.599 1 .000 .049
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio
Determinants of the Kessler (K10) Psychological Distress Score
Using ordinal logistic regression, the final model of the Kessler Psychological
Distress Scale (K10) was statistically significant, [χ² (9, n = 662) = 133.05, p < .001],
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and the predictor variables included self-reported health, a cancer diagnosis and job
satisfaction (see Table 4.3-4). The assumption of proportional odds (null hypothesis)
could not be rejected (χ² = 31.55, 16 d.f. p = 0.773).
Table 4.3-4 Predictors of Psychological Distress
OR Sig.
95% CI
Lower Upper
Poor SR Health 3.51 .000 .813 1.699
Cancer 0.37 .001 -1.546 -.429
Depressing JS 7.63 .000 1.433 2.633
Bad JS 3.70 .000 .731 1.892
Abbreviations: SR = self-reported, JS = job satisfaction, OR = odds ratio, Sig = significance, CI = confidence interval.
The results indicated, the odds of an individual being in the next highest K10
Category (mild → moderate → severe) increased by a factor of 7.63 if the job was
regarded as ‘depressing’, increased by a factor of 3.70 if the job was regarded as ‘bad’,
increased by a factor of 3.51 if self-reported health was poor and decreased by a factor
of 0.62 if there has never been a cancer diagnosis.
Determinants of Disability
The final disability model was developed using binary logistic regression and
was statistically significant, [χ² (9, n = 662) = 39.60, p < .001]. This model was able
to distinguish between respondents who had a disability and those who did not have a
disability and explained 8% of the variability of the disabilities and correctly classified
62.5% of cases. Table 4.3-5shows predictor variables of disability, which include self-
reported health, age, station category and work-related health culture.
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The strongest predictors of an individual’s disability were poor self-reported
health (2.12 times higher), poor work-related health culture (1.73 time higher),
working in a Category 5 station (1.71 times higher), and age (for every 10 years of age
gained the risk of having a disability increased by a factor of 10.02).
Table 4.3-5 Predictors of Disability
B S.E. Wald d.f. Sig. OR
95% CI
Lower Upper
Age .016 .007 4.790 1 .029 1.016 1.002 1.031
Poor SR Health .750 .229 10.733 1 .001 2.118 1.352 3.317
Station Category (5) .536 .204 6.882 1 .009 1.709 1.145 2.551
W-R Health Culture .549 .170 10.440 1 .001 1.732 1.241 2.416
Constant -1.876 .347 29.295 1 .000 .153
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, SR = self-reported, W-R = work related, OR = odds ratio. Determinants of Long Term Conditions
The final long-term conditions (LTC) model (see Table 4.3-6) was developed
using binary logistic regression and was statistically significant, [χ² (6, n = 663) =
43.29, p < .001]. This model explained 9.0% of the variability of long term conditions
and correctly classified 68.5% of cases, whilst distinguishing between respondents
who had and did not have a long-term condition.
The strongest predictors of developing a long-term condition were constant
fatigue (8.87 times higher) and frequent fatigue (3.52 times higher). The risk of
developing a long-term condition increased by a factor of 1.04 for every one hour
increase in sitting. Sleep had a protective effect on developing a long-term condition.
Respondents who reported fair sleep had a decreased risk of developing a long-term
condition by a factor of 0.70.
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Table 4.3-6 Predictors of Long Term Conditions
B S.E. Wald df Sig. OR
95% C.I.
Lower Upper
Frequent Fatigue 1.258 .431 8.519 1 .004 3.520 1.512 8.195
Constant Fatigue 2.183 .627 12.104 1 .001 8.873 2.594 30.348
Sit Hours in a work day .043 .020 4.504 1 .034 1.044 1.003 1.087
Fair Sleep Quality -1.207 .498 5.877 1 .015 .299 .113 .794
Constant .347 .673 .265 1 .607 1.414
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, df = degrees of freedom, sig = p value, C.I. = confidence interval. OR = odds ratio
4.3.2 Chronic Disease
This chronic disease section is made up of six dependent variables, which
include asthma, cardiovascular disease, cancer, diabetes, arthritis and three or more
chronic diseases.
Determinants of Asthma
Binary logistic regression was used to develop the final model for predicting
asthma. Whilst the final model was statistically significant, [χ² (2, n = 663) = 36.97, p
< .001], it contained only one predictor. The risk of having asthma increased 3.13 times
if the respondent also experienced hay fever or allergic rhinitis. Whilst BMI was not
statistically significant, it was contextually significant (Beuther & Sutherland, 2007)
and reported in Table 4.3-7. That is, if you were an overweight respondent your
chances of having asthma increased by a factor of 1.02.
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Table 4.3-7 Predictors of Asthma
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
BMI .025 .017 2.218 1 .136 1.025 .992 1.059
Hay Fever 1.198 .205 33.978 1 .000 3.313 2.215 4.956
Constant -2.307 .477 23.431 1 .000 .100
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
Determinants of Cardiovascular Disease
The final model was developed using binary logistic regression (see Table 4.3-
8). And was statistically significant [χ² (2, n = 663) = 7.81, p = 0.020], and included
only one predictor variable. The model described 7.2% of the variability of CVD and
correctly classified 87.8% of cases.
Table 4.3-8 Predictors of Cardiovascular Disease
B S.E. Wald d.f. Sig. OR
95% CI
Lower Upper
Poor Sleep Quality -.599 .417 2.058 1 .151 .549 .242 1.245
Fair Sleep Quality -1.056 .397 7.074 1 .008 .348 .160 .757
Constant -1.131 .364 9.679 1 .002 .323
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval.
Respondents who reported fair sleep were 0.84 times less likely and those with
poor to very poor sleep, 0.76 times less likely to experience cardiovascular disease.
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Determinants of Cancer
The final model for cancer was statistically significant, [χ² (4, n = 507) = 44.79,
p < 0.001] and included three predictors as described in Table 4.3-9. The model
described 20% of the variability of cancer and correctly classified 93.2% of cases.
Respondents who described frequent to constant anxiety were 11.55 times more
at risk of developing cancer compared to those with occasional to no anxiety. For every
one-year increase in age, the risk of cancer increased by a factor of 1.05 and for every
one-year increase in shift work years, the risk of cancer increased by a factor of 1.04.
Table 4.3-9 Predictors of Cancer
B S.E. Wald d.f. Sig. OR
95% CI
Lower Upper
Constant Anxiety 2.446 1.047 5.459 1 .019 11.548 1.483 89.912
Age .052 .019 7.497 1 .006 1.053 1.015 1.093
SWYR .042 .015 8.250 1 .004 1.043 1.013 1.073
Constant -7.085 1.286 30.333 1 .000 .001
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, SWYR = shift work years, OR = odds ratio.
Determinants of Diabetes
The final model for diabetes was statistically significant, [χ² (4, n = 616) =
25.43, p < 0.001] and included the predictor variables as described in Table 4.3-10.
The model described 18% of the variability in diabetes and correctly classified 97.1%
of cases. Individuals who described high fatigue had an increased risk of developing
diabetes of 6.28. BMI and age were also determinants of diabetes. For each one unit
increase in BMI the risk of developing diabetes increased by a factor of 1.12. For every
one-year increase in age the risk of developing diabetes increased by a factor of 1.08.
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Table 4.3-10 Predictors of Diabetes
B S.E. Wald d.f. Sig. OR
95% CI
Lower Upper
BMI .111 .037 8.840 1 .003 1.118 1.039 1.203
High Fatigue 1.837 .730 6.327 1 .012 6.279 1.500 26.284
Age .074 .024 9.511 1 .002 1.077 1.027 1.129
Constant -10.546 1.726 37.312 1 .000 .000
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, BMI = Body Mass Index, OR = odds ratio.
Determinants of Arthritis
The final model for arthritis (see Table 4.3-11) was statistically significant, [χ²
(4, n = 642) = 26.16, p < 0.001] and was developed using binary logistic regression.
The model described 9.1% of the variability of arthritis and correctly classified 91.6%
of all cases. It included two predictor variables.
Table 4.3-11 Predictors of Arthritis
B S.E. Wald d.f. Sig. OR
95% CI
Lower Upper
BMI .060 .022 7.106 1 .008 1.061 1.016 1.109
Moderate Body Pain 1.596 .646 6.098 1 .014 4.933 1.390 17.507
Severe Body Pain 2.396 .789 9.232 1 .002 10.979 2.341 51.499
Constant -5.147 .859 35.927 1 .000 .006
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, BMI = Body Mass Index, OR = odds ratio.
Individuals who described severe body pain had an increased risk of
experiencing arthritis by a factor of 10.98 and those who described moderate body pain
had an increased risk of experiencing arthritis by a factor of 1.39. BMI was also
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associated with arthritis and for each one unit increase in BMI there was an increased
risk of developing arthritis by a factor of 1.06.
Determinants of Three or more Chronic Diseases
Ordinal logistic regression model was used to develop the final model for three
or more chronic diseases and included BMI, age and the Kessler psychological distress
score (K10) (see Table 4.3-12). Overall, the model was statistically significant, [χ ² (5,
n = 641) = 99.11, p < 0.001]. The risk of having three or more chronic diseases
increased by a factor of 1.05 for every-one unit increase in BMI, increased by a factor
of 1.03 for every-one-year increase in age (that was a factor of 13.0 for every decade
of life), decreased by a factor of 0.55 as the K10 score decreased from severe to
moderate and decreased by a factor of 0.78 as the K10 score decreased from moderate
to mild.
Table 4.3-12 Predictors of Three or more Chronic Diseases
95% CI
Sig. OR Lower Upper
CD (3) 0.000 141.747 3.744 6.164
BMI 0.000 1.052 0.022 0.079
Age 0.000 1.03 0.017 0.044
K10 (Moderate) 0.048 0.451 -1.585 -0.007
K10 (Mild) 0.000 0.219 -2.230 -0.806
Abbreviations: CD = chronic disease, Sig = significance, OR = odds ratio, CI = confidence interval, K10 = Kessler Psychological distress scale, BMI = Body Mass Index
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4.3.3 Organisational Symptomology
Determinants of Job Satisfaction
Ordinal logistic regression was used to develop a model for job satisfaction (see
Table 4.3-13), which was statistically significant, [χ ² (13, n = 662) = 208.12, p <
0.001]. The assumption of proportional odds (null hypothesis) could not be rejected,
[χ² = 75.22, 39 d.f., p < 0.001]. The model included statistically significant predictor
variables of fatigue and anxiety, employment type, self-reported health, family
stressors, age and the highest level of school. The risk of an individual being in the
next lowest job satisfaction category:
Increased by a factor of 2.96 as an individual went from no fatigue to occasional
fatigue and by a factor of 4.03 from occasional to frequent fatigue.
Increased by a factor of 4.02 as an individual went from no anxiety to occasional
anxiety and by 2.72 from occasional to frequent anxiety.
Increased by a factor of 3.27 if you were a supervisor/manager.
Increased by a factor of 1.59 if an individual experienced a family stressor.
Decreased by a factor 0.02 for every one-year increase in age.
Decreased by a factor of 0.60 as self-reported health improved from poor/fair to
good.
Decreased by 0.92 as the highest school qualification increased one unit.
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Table 4.3-13 Predictors of Job Satisfaction
95% CI
Sig OR Lower Upper
Fatigue (Occasionally) 0.000 4.036 0.782 2.009
Anxiety (Never) 0.000 4.026 0.894 1.891
Supervisor/Manager 0.000 3.274 0.803 1.570
Fatigue (Never) 0.028 2.965 0.782 2.009
Anxiety (Occasionally)) 0.000 2.722 0.643 1.360
Family Stressors 0.001 1.588 0.182 0.743
Age 0.005 0.981 -0.032 -0.006
SR Health (Poor) 0.000 0.399 -1.336 -0.501
Highest school (<year 10) 0.016 0.072 -4.782 -0.494
Abbreviations: SR – self-reported, Sig = significance, OR = odds ratio, CI = confidence interval.
Determinants of Work Related Health Culture
Binary logistic regression was used to develop a model of work related health
culture, which was statistically significant [χ ² (5, n = 663) = 62.31, p < 0.001].
Predictor variables included thoughts of leaving, Kessler psychological distress scale
(K10) and disability (see Table 4.3-14). This model explained 12.2% of the variability
in thoughts of leaving and correctly classified 66.5% of cases.
The risk of reporting a positive rather than a negative work-related health
culture:
Decreased by a factor of 0.62 if an individual had thoughts of leaving the
ambulance service.
Decreased by a factor of 0.38 as an individual went from well in terms of
psychological distress to mild psychological distress.
Decreased by a factor of 0.30 if an individual had a disability.
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Having a disability, thoughts of leaving the ambulance service and mild
psychological distress were predictors of an individual reporting a negative work-
related health culture.
Table 4.3-14 Predictors of Work-Related Health Culture
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
Consider Leaving -.969 .171 31.978 1 .000 .380 .271 .531
K10 score -.482 .208 5.391 1 .020 .617 .411 .928
Disability -.358 .175 4.183 1 .041 .699 .496 .985
Constant .361 .134 7.303 1 .007 1.435
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, K10 – Kessler psychological distress score, OR = odds ratio.
Determinants of Thoughts of Leaving
Binary logistic regression was used to develop a model on thoughts of leaving
the ambulance service. The model was statistically significant, [χ ² (10, n = 662) =
166.89, p < 0.001]. Predictor variables included age, Kessler psychological distress
score (K10), a cancer diagnosis, long term conditions and job satisfaction (see Table
4.3-15). This model explained 29.7% of the variability in thoughts of leaving and
correctly classified 72.1% of cases. The risk of an individual having thoughts of
leaving the ambulance service:
Increased by a factor of 3.52 if there was a cancer diagnosis.
Increased by a factor of 1.74 if the K10 score increased from well to mild
psychological distress.
Increased by a factor of 1.53 if that individual had an LTC.
Decreased by a factor of 0.54 if job satisfaction improved from depressing to bad.
Decreased by a factor of 0.75 if job satisfaction improved from bad to okay.
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Decreased by a factor of 0.88 if job satisfaction improved from okay to good.
Decreased by a factor of 0.93 if job satisfaction improved from good to great.
Table 4.3-15 Predictors of Thoughts of Leaving
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
Age -.023 .008 7.754 1 .005 .977 .962 .993
K10 score .552 .216 6.529 1 .011 1.737 1.137 2.652
Cancer Diagnosis 1.258 .401 9.846 1 .002 3.519 1.604 7.723
LTC .427 .196 4.746 1 .029 1.532 1.044 2.250
JS Depressing -.769 .326 5.564 1 .018 .464 .245 .878
JS Bad -1.383 .310 19.920 1 .000 .251 .137 .460
JS Okay -2.084 .327 40.558 1 .000 .124 .066 .236
JS Good -2.694 .352 58.423 1 .000 .068 .034 .135
Constant 1.811 .453 15.976 1 .000 6.115
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, JS = job satisfaction, OR = odds ratio, K10 = Kessler psychological distress score, LTC = long term condition.
Determinants of Rest Breaks
A statistically significant model for rest breaks (see Table 4.3-16) was produced
using binary logistic regression, [χ ² (7, n = 663) = 93.56, p < 0.001]. The model
explained 19% of the variation in rest breaks and correctly classified 73.6% of cases.
Being a male, a supervisor/manager, a paramedic or having frequent to constant fatigue
were predictors of an increased risk of not having a rest break. Increased sitting time
decreased the risk of having a regular rest break.
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Table 4.3-16 Predictors of Rest Breaks
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
Gender (male) -.439 .199 4.853 1 .028 .645 .436 .953
Supervisor/Manager --2.949 .764 14.896 1 .000 .052 .012 .234
Paramedic -2.931 .746 15.447 1 .000 .053 .012 .230
Fatigue (Frequently) -1.691 .767 4.863 1 .027 .184 .041 .829
Fatigue (Constantly) -2.557 .815 9.844 1 .002 .078 .016 .383
Sitting hours 0.047 .024 3.894 1 .048 1.048 1.000 1.098
Constant 4.660 1.106 17.746 1 .000 105.621
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
Males have a decreased risk of not having a regular rest break by a factor of 0.35.
Supervisor/managers have a decreased risk of not having a regular rest break by a
factor of 0.48.
Paramedics have a decreased risk of not a having regular rest break by a factor of
0.47.
Individuals who reported frequent fatigue have a decreased risk of not having a
regular rest break by a factor of 0.81.
Individuals who reported constant fatigue have a decreased risk of not having a
regular rest break by a factor of 0.92.
A one hour increase in sitting time will result in an increased risk of not having a
regular rest break by a factor of 1.05.
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4.3.4 Caring for Self
Determinants of Fatigue
Ordinal logistic regression was used to develop a statistically significant model
of fatigue, [χ ² (14, n = 637) = 117.234, p < 0.001]. The predictors included job
satisfaction, consumption of five or more alcoholic drinks in one session per week, age
and disability and are shown in Table 4.3-17.
Table 4.3-17 Predictors of Fatigue
95% CI
Sig OR Lower Upper
JS Depression Job 0.000 7.170 1.373 2.566
JS Bad 0.000 5.055 1.059 2.181
JS Ok 0.000 3.017 0.572 1.637
JS Good 0.000 2.695 0.435 1.548
Alcohol 5 or more (3 times per week) 0.039 5.931 0.093 3.468
Alcohol 5 of more (once per week) 0.031 5.728 0.157 3.334
Age 0.020 0.983 -0.032 -0.003
Disability 0.000 0.452 0.103 0.836
Abbreviations: SR – self-reported, Sig = significance, OR = odds ratio, CI = confidence interval, JS =job satisfaction.
The risk of an individual moving to the next highest level of fatigue:
Increased by a factor of 7.17 when job satisfaction was described as depressing.
Increased by a factor of 5.05 when job satisfaction was described as bad.
Increased by a factor of 3.02 when job satisfaction was described as okay.
Increased by a factor of 2.70 when job satisfaction was described as good.
Increased by a factor of 5.93 when five or more alcoholic drinks were consumed at
least three times per week.
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Increased by a factor of 5.73 when five or more alcoholic drinks were consumed at
least once per week.
Decreased by a factor of 0.02 per year of age or a factor of 0.30 per decade.
Decreased by a factor of 0.55 if an individual had a disability.
Determinants of Sleep Hours
Binary logistic regression was used to assess the impact of several independent
variables on sleep hours (defined as (1) = six hours or less and (2) = seven hours or
more) whilst on rostered days off. The model was statistically significant, [χ ² (4, n =
641) = 44.94, p < 0.001] (see Table 4.3-18). The model explained 12.5% of the
variability of sleep hours and correctly classified 87.2% of cases.
Table 4.3-18 Predictors of Sleep Hours
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
Total SWYR -.048 .012 15.924 1 .000 .953 .931 .976
SR Health (good) .865 .307 7.921 1 .005 2.375 1.300 4.337
SR Health (excellent) 1.022 .327 9.746 1 .002 2.779 1.463 5.278
BMI -.053 .021 6.530 1 .011 .949 .911 .988
Constant 3.395 .717 22.440 1 .000 29.819
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
For every year increase in shift work an individual had a decreased risk of sleeping
six hours or less on rostered days off by a factor of 0.05.
Self-reported good health showed an increased chance of sleeping seven hours or
more on rostered days off by a factor of 2.73.
Self-reported excellent health showed an increased chance of sleeping seven hours
or more on rostered days offs by a factor of 2.78.
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Each one unit decrease in BMI was associated with a 0.05 decreased chance of
sleeping seven hours or more on rostered days off.
Barriers to Exercise – Determinants of Lack of Time
A statistically significant model was developed using binary logistic regression
for lack of time as a barrier to exercise [χ ² (4, n = 648) = 77.908, p < 0.001]. The
model explained 19.4% of the variability in ‘lack of time’ and correctly classified
85.8% of cases (see Table 4.3-19).
EMDs had an increased risk of describing lack of time as a barrier to exercise by a
factor of 5.30.
Respondents who had thoughts of leaving the ambulance service had an increased
risk of describing lack of time as a barrier to exercise by a factor of 1.88.
For every year of age decrease, there was a decreased risk of describing lack of time
as a barrier to exercise by a factor of 0.02.
An increase of one hour of exercise was associated with a decreased risk of
describing lack of time as a barrier to exercise by a factor of 0.03.
A one unit increase in alcohol consumption per week was associated with an
increased risk of describing lack of time as a barrier to exercise by a factor of 0.96.
A one unit increase in serves of fruit per day was associated with a decreased risk
of not describing lack of time as a barrier to exercise by a factor of 0.31.
Having regular rest breaks was associated with a decreased risk of describing lack
of time as a barrier to exercise by a factor of 0.73.
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Table 4.3-19 Predictors of Lack of Time
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
Alcohol in one week -.039 .014 7.365 1 .007 .962 .935 .989
Rest Breaks -1.316 .353 13.929 1 .000 .268 .134 .535
Exercise Hours -.027 .008 10.987 1 .001 .973 .957 .989
Serves of Fruit/day -.371 .132 7.925 1 .005 .690 .533 .894
Consider Leaving .630 .240 6.887 1 .009 1.878 1.173 3.008
Age -.026 .011 6.026 1 .014 .975 .955 .995
EMD 1.682 .503 11.185 1 .001 5.374 2.006 14.396
Constant 4.407 .692 40.578 1 .000 82.021
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
Barriers to Exercise – Determinants of Lack of Energy
Binary logistic regression was used to create a model for lack of energy as a
barrier to exercise, that was statistically significant [χ² (7, n = 662) = 79.162, p <
0.001]. The model explained 16.3% of the variability of ‘lack of energy’ and correctly
classified 74% of cases (see Table 4.3-20).
Respondents who had moderate psychological distress had an increased risk of
describing lack of energy as a barrier to exercise by a factor of 5.30.
Individuals who considered leaving an ambulance service had an increased risk of
describing lack of energy as a barrier to exercise by a factor of 1.67.
A one unit decrease in exercise hours showed a decreased risk of describing lack of
energy as a barrier to exercise by a factor of 0.08.
A one unit decrease in age showed a decreased risk of describing a lack of energy
as a barrier to exercise by a factor of 0.04.
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A one unit increase in the number of serves of vegetable per day showed a decreased
risk of describing lack of energy as a barrier to exercise by a factor of 0.20.
Table 4.3-20 Predictors of Lack of Energy
B S.E. Wald d.f. Sig. OR
95% C.I.
Lower Upper
Exercise Hours -.039 .008 25.805 1 .000 .962 .948 .976
Consider Leaving .518 .193 7.188 1 .007 1.679 1.149 2.452
Age -.038 .008 20.708 1 .000 .962 .947 .978
Serves Vegies/day -.216 .079 7.522 1 .006 .806 .690 .940
K10 (Moderate) 1.710 .650 6.916 1 .009 5.529 1.546 19.779
Constant 2.928 .452 42.026 1 .000 18.685
Abbreviations: β = log odds ratio, S.E. = standard deviation, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
Determinants of Hours Worked
A statistically significant ‘hours worked’ regression model (see Table 4.3-21)
was developed using ordinal logistic regression, [χ ² (2, n = 645) = 18.597, p < 0.001].
This model only included one predictor variable which was statistically significant.
Supervisor/managers had an increased risk of moving to the next highest hours worked
group by a factor of 2.08.
Table 4.3-21 Hours Worked
95% CI
Sig OR Lower Upper
Supervisor/manager 0.000 2.084 0.381 1.088
Abbreviations: SR – self-reported, Sig = significance, OR = odds ratio, CI = confidence interval.
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4.3.5 Risk Factors
Determinants of Non-Clinical Anxiety
Ordinal logistic regression was used to develop a statistically significant model
of anxiety, [χ ² (7, n = 542) = 72.048, p < 0.001]. The predictors included job
satisfaction, normotensive systolic blood pressure and a disability; and is shown in
Table 4.3-22.
Table 4.3-22 Predictors of Anxiety
95% CI
Sig OR Lower Upper
JS Depression 0.000 13.290 1.717 3.457
JS Bad 0.000 7.389 1.142 2.858
Normotensive SBP 0.017 0.460 -1.410 -0.141
No Disability 0.005 0.587 -0.907 -0.162
Abbreviations: JS = job satisfaction, CI = confidence interval, Sig = significance, OR = odds ratio, SBP = systolic blood pressure.
The risk of an individual moving to the next highest level of anxiety (mild →
moderate → high):
Increased by a factor of 13.29 if job satisfaction was described as
depressing.
Increased by a factor of 7.38 if job satisfaction was described as bad.
Decreased by a factor of 0.54 if systolic blood pressure was normal.
Decreased by 0.41 if there was no disability.
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Determinants of Back Injury
Binary logistic regression was used to create a model of ‘back injury’ as a risk
factor for AOP. This model was statistically significant [χ ² (8, n = 558) = 47.460, p <
0.000]. The model explained 11.2% of the variability of back injuries and correctly
classified 67% of cases. The regression model confirmed the results of the association
analysis and is presented in Table 4.3-23.
Table 4.3-23 Predictors of Back Injury
B SE Wald d.f. Sig. OR
95% CI
Lower Upper
SWYR Current .021 .009 5.770 1 .016 1.021 1.004 1.039
Mental Diagnosis .668 .278 5.776 1 .016 1.950 1.131 3.363
Family Stressors .413 .189 4.784 1 .029 1.511 1.044 2.186
Personal Probs. .587 .235 6.261 1 .012 1.798 1.136 2.847
JS (good) -1.099 .344 10.185 1 .001 .333 .170 .654
Constant -1.003 .280 12.801 1 .000 .367
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, Probs. = problems, JS = job satisfaction.
Respondents who had a mental health disorder, had an increased risk of a back
injury by a factor of 1.95.
Respondents who experienced personal problems had an increased risk of a back
injury by a factor of 1.80.
Respondents who experienced family stressors had an increased risk of a back
injury by a factor of 1.51.
Respondents who described the job as ‘good’ had a decreased risk of a back injury
by a factor of 0.67.
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Respondents who were current shift workers had an increased risk of having a
back injury by a factor of 1.02.
Determinants of Obesity
BMI
Binary logistic regression was used to create a model of ‘BMI’ as a risk factor
for AOP. This model was statistically significant [χ ² (7, n = 641) = 101.827, p < 0.000].
The model (see Table 4.3-24) explained 19.9% of the variability of overweightness
and correctly classified 68.3% of cases.
Table 4.3-24 Predictors of Obesity - BMI
B SE Wald d.f. Sig. OR
95% CI
Lower Upper
Gender (females) -.952 .194 24.043 1 .000 .386 .264 .565
Age Groups .398 .088 20.312 1 .000 1.490 1.253 1.771
Supervisor/manager -1.132 .301 14.183 1 .000 .322 .179 .581
Mild K10 .751 .333 5.080 1 .024 2.119 1.103 4.070
Moderate K10 .948 .474 3.995 1 .046 2.582 1.019 6.543
Constant .379 .410 .852 1 .356 1.460
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
Those respondents who reported moderate psychological distress had an
increased risk of being overweight by a factor of 2.58
Those respondents who reported mild psychological distress had an increased
risk of being overweight by a factor of 2.12.
For every increase in a 10-year age group (e.g. 25-34 to 35-44) those who were of
normal weight had an increased risk of becoming overweight by a factor of 1.49.
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Being a supervisor/manager showed a decreased risk of being overweight by a
factor of 0.68.
Female respondents had a decreased risk of being overweight by a factor of 0.61.
Central Adiposity - Waist-Hip
A statistically significant ‘Waist-Hip’ model was developed using ordinal
logistic regression, [χ ² (8, n = 519) = 167.11, p < 0.001]. Predictor variables included
gender, anxiety and job satisfaction and are shown in Table 4.3-25.
For each one unit increase in age group, there was an increased risk of moving to
the next highest waist-hip group by a factor 1.40.
Males had an increased risk of being in the next highest waist-hip group by a
factor of 8.68.
Those respondents who reported a job satisfaction score as “depressing” had an
increased risk of moving to the next highest waist-hip group by a factor of 3.04.
An increase in one level of anxiety (e.g. none too mild) increased the risk of
moving to the next highest waist-hip group by a factor of 2.17.
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Table 4.3-25 Predictors of Central Adiposity – Waist-Hip
Estimate SE Wald d.f. Sig.
95% CI
OR Lower Upper
Normal Weight .442 .426 1.076 1 .299 1.555 -.393 1.276
Overweight 2.184 .437 24.932 1 .000 8.881 1.327 3.041
Age Groups .339 .096 12.443 1 .000 1.405 .150 .527
Male 2.161 .220 96.312 1 .000 8.679 1.730 2.593
Anxiety .774 .353 4.817 1 .028 2.168 .083 1.466
JS Depressing 1.111 .398 7.775 1 .005 3.037 .330 1.892
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, JS = job satisfaction.
Determinants of Blood Pressure
Systolic Blood Pressure (SBP)
Table 4.3-26 Predictors of Systolic Blood Pressure
OR SE Wald d.f. Sig.
95% CI
Lower Upper
Normotensive 1.231 .586 .126 1 .723 -.941 1.358
Prehypertensive 8.540 .590 13.194 1 .000 .987 3.302
Age Group 1.223 .089 5.151 1 .023 .027 .375
Male 2.803 .230 20.072 1 .000 .580 1.482
BMI 0.516 .222 8.856 1 .003 -1.098 -.226
Normal WH 0.586 .235 5.162 1 .023 -.996 -.073
OW-♀, NW- ♂ 0.536 .227 7.591 1 .006 -1.072 -.181
Diabetes 0.424 .401 4.572 1 .032 -1.643 -.071
CVD 0.618 .255 3.551 1 .059 -.980 .019
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, OW = overweight, NW = normal weight, WH = waist/hip, CVD = cardiovascular disease.
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A statistically significant model was developed for SBP using ordinal logistic
regression, [χ ² (7, n = 625) = 114.99, p < 0.001]. Predictor variables included gender,
BMI, waist-hip, diabetes and CVD. This model is shown in Table 4.3-26.
The risk of moving from normotensive to prehypertensive increase by a factor of
1.22 for each one unit increase in an age group.
Males had an increased risk of being prehypertensive by a factor 2.80.
Respondents of normal weight had a decreased risk of being prehypertensive by a
factor of 0.48.
Respondents who had a normal waist hip ratio had a decreased risk of being
prehypertensive by a factor of 0.41.
Respondents who had a waist-hip ratio greater than 0.81 and less than 0.90 an
increased risk of being prehypertensive by a factor of. 0.46.
Respondents who had diabetes had an increased risk of being prehypertensive by
a factor of 0.03.
Respondents who had CVD had an increased risk of being prehypertensive by a
factor of 0.06.
Diastolic Blood Pressure (DBP)
A statistically significant model was developed for DBP using ordinal logistic
regression, [χ ² (13, n = 627) = 88.60, p < 0.001]. Predictor variables included being a
male, BMI, being a supervisor/manager, working in a category three station, and
bodily pain. This model is show in 4.3-27.
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Table 4.3-27 Predictors of Diastolic Blood Pressure
OR SE Wald d.f. Sig.
95% CI
Lower Upper
Normotensive 0.521 .479 1.854 1 .173 -1.591 .287
Prehypertensive 5.956 .485 13.560 1 .000 .835 2.734
Male 2.396 .190 21.077 1 .000 .501 1.247
NW 0.477 .178 17.217 1 .000 -1.090 -.391
Supervisor/manager 1.722 .199 7.464 1 .006 .154 .934
Category 3 Stations 2.951 .367 8.682 1 .003 .362 1.802
No Body Pain 0.224 .492 9.242 1 .002 -2.460 -.531
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, NW = normal weight.
Working in category three station increased the risk of moving to the next highest
DBP category by a factor of 2.95.
Being a male increased the risk of moving to the next highest DBP category by a
factor of 2.40.
Being a supervisor/manager increased the risk of moving to the next highest DBP
category by a factor of 1.72.
Normal weight respondents had a decreased risk of moving to the next highest
DBP category by a factor of 0.52.
Those respondents who did not report bodily pain had a decreased risk of moving
to the next highest DBP category by 0.78.
Blood Pressure (Systolic/Diastolic) (BP)
A statistically significant model for blood pressure was developed using ordinal
logistic regression, [χ ² (7, n = 622) = 67.19, p < 0.001]. Predictor variables included
being a male, having normal weight and not having bodily pain, CVD and diabetes.
This model is shown in Table 4.3-28.
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Table 4.3-28 Predictors of Blood Pressure (SBP/DBP)
OR Std. Error Wald d.f. Sig.
95% CI
Lower Upper
Normotensive 0.495 .683 1.062 1 .303 -2.042 .635
Prehypertensive 3.901 .686 3.936 1 .047 .016 2.706
Male 3.068 .263 18.172 1 .000 .606 1.636
NW 0.509 .236 8.150 1 .004 -1.137 -.211
Body Pain 0.255 .581 5.527 1 .019 -2.504 -.227
CVD 0.485 .264 7.494 1 .006 -1.242 -.206
Diabetes 0.324 .459 6.029 1 .014 -2.028 -.227
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, NW = normal weight, CVD = cardiovascular disease.
Males have an increased risk of moving to the next highest category of BP by a
factor of 3.07.
Normal weight respondents had a decreased risk of moving to the next highest BP
category by a factor of 0.49.
Those respondents who did not report bodily pain had a decreased risk of moving
to the next highest BP category by a factor of 0.74.
Those respondents who reported CVD had an increased risk of moving to the next
highest category of BP by a factor of 0.48.
Those respondents who reported diabetes had an increased risk of moving to the
next highest BP category by a factor of 0.32.
Determinants of Exercise
Exercise hours were grouped into four categories (< 10, 10 – 19, 20 - 29, > 29) over a
fortnight and a statistically significant model was developed using ordinal logistic
regression, [χ ² (4, n = 196) = 18.08, p = 0.001]. Predictor variables in this model
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included being a current shift worker or a supervisor/manager and the number of
alcoholic drinks consumed in the last seven days. This model is shown in Table 4.3-
29. Current shift workers had an increased risk of moving to the next lowest exercise
group by a factor of 1.05.
For each one unit increase in alcohol consumed per week, respondents had an
increased risk of moving to the next lowest exercise group by a factor of 1.04.
Supervisor/managers had a decreased risk of moving to the next lowest exercise group by a factor of 0.62.
Table 4.3-29 Predictors of Exercise Hours
OR SE Wald d.f. Sig.
95% CI
Lower Upper
< 10 hours 0.422 .258 11.170 1 .001 -1.368 -.357
10-19 hours 4.464 .269 31.008 1 .000 .969 2.023
20-29 hours 11.138 .307 61.766 1 .000 1.809 3.011
Current SW 1.047 .015 9.324 1 .002 .016 .075
Alcoholic drinks/ wk 1.037 .014 6.584 1 .010 .009 .065
Supervisor/Manager 0.383 .455 4.442 1 .035 -1.851 -.067
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, wk = week, SW = shift worker.
Determinants of Sedentary Behaviour
Sedentary behaviour was determined by calculating the total number of self-
reported sitting hours in a typical workday. A statistically significant model was
developed using ordinal logistic regression, [χ ² (15, n = 628) = 126.13, p < 0.001].
Predictor variables included being an EMD, supervisor/manager, and 15-24-year age
group, male, working at category five stations, increased alcohol consumption over the
last year and normal weight (see Table 4.3-30).
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Table 4.3-30 Predictors of Sedentary Behaviour
OR SE Wald d.f. Sig.
95% CI
Lower Upper
< 5 hours 0.064 .363 57.629 1 .000 -3.467 -2.044
10-14 hours 7.030 .334 34.025 1 .000 1.295 2.605
EMD 10.802 .286 69.275 1 .000 1.819 2.940
Supervisor/Manager 1.592 .201 5.330 1 .021 .070 .860
15-24 years 2.147 .376 4.135 1 .042 .028 1.501
Male 1.699 .179 8.751 1 .003 .179 .881
Category 5 Station 0.611 .191 6.651 1 .010 -.868 -.118
↑ Alcohol Consumption 1.639 .233 4.493 1 .034 .037 .950
Normal Weight 0.531 .170 13.928 1 .000 -.966 -.301
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio.
EMDs had an increased risk of moving to the next highest sitting group by a
factor of 10.80.
The 15-24-year age group have an increased risk of moving into the next highest
sitting group by a factor of 2.15.
Males have an increased risk of moving into the next highest sitting group by a
factor of 1.70.
Respondents who had increased alcohol consumption over the last year have an
increased risk of moving into the next highest sitting group by a factor of 1.64.
Supervisor/managers have an increased risk of moving to the next highest sitting
group by a factor of 1.59.
Respondents who work in category five stations have a decreased risk of moving
into the next lowest sitting group by a factor of 0.39.
Normal weight respondents have a decreased risk of moving into the next highest
sitting group by a factor of 0.47.
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Determinants of Diet
Serves of Vegetables per Day
A statistically significant model was developed for vegetable consumption using
ordinal logistic regression, [χ ² (6, n = 663) = 56.26, p < 0.001]. Statistically significant
predictor variables included gender, self-reported health and psychological distress
and are presented in Table 4.3-31.
Table 4.3-31 Predictors of Vegetable Consumption
OR SE Wald d.f. Sig.
95% CI
Lower Upper
One Serves 0.041 .376 72.555 1 .000 -3.941 -2.467
Two Serves 0.204 .360 19.477 1 .000 -2.295 -.883
Male 0.618 .146 10.757 1 .001 -.768 -.193
Poor/Fair Health 0.283 .217 33.918 1 .000 -1.687 -.837
Good Health 0.512 .157 18.141 1 .000 -.977 -.361
K10 - Mild 0.388 .350 7.321 1 .007 -1.633 -.261
K10 - Moderate 0.346 .391 7.366 1 .007 -1.827 -.295
Abbreviations: β = log odds ratio, S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, K10 = Kessler psychological distress score.
Males had a decreased risk of moving to the next highest level of vegetable
consumption by a factor of 0.38.
Respondents with poor/fair self-reported health had an increased risk of moving to
the next highest level of vegetable consumption by a factor of 0.28.
Respondents with good self-reported health had an increased risk of moving to the
next highest level of vegetable consumption by a factor of 0.51.
Respondents with mild psychological distress had an increased risk of moving to
the next highest level of vegetable consumption by a factor of 0.39.
Respondents with moderate psychological distress had a decreased risk of moving
to the next highest level of vegetable consumption by a factor of 0.65.
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Serves of Fruit per Day
A statistically significant model was developed for fruit consumption using
ordinal logistic regression, [χ ² (9, n = 628) = 48.56, p < 0.001]. Statistically significant
predictor variables included self-reported health, decreased alcohol consumption over
the last year, age and BMI, and these are described in Table 4.3-32.
Table 4.3-32 Predictors of Fruit Consumption
OR SE Wald d.f. Sig.
95% CI
Lower Upper
One serve 0.367 .265 14.301 1 .000 -1.520 -.482
Two Serves 2.325 .264 10.223 1 .001 .327 1.361
Three Serves 10.393 .296 62.587 1 .000 1.761 2.921
Poor SR Health 0.438 .228 13.151 1 .000 -1.271 -.379
Good SR Health 0.683 .168 5.155 1 .023 -.709 -.052
Decreased Alcohol 1.502 .175 5.376 1 .020 .063 .751
25-34 age 0.581 .277 3.838 1 .050 -1.087 .000
35-44 age 0.475 .276 7.264 1 .007 -1.285 -.203
Normal Weight 1.673 .166 9.572 1 .002 .189 .841
Abbreviations: S.E. = standard error, Wald = Wald chi-square, d.f. = degrees of freedom, sig = p value, C.I. = confidence interval, OR = odds ratio, SR = self-reported
Respondents who self-reported poor/fair health have an increased potential of
moving to the next highest level of fruit consumption by a factor of 0.44.
Respondents who self-reported good health have an increased potential of moving
to the next highest level of fruit consumption by a factor of 0.68.
Respondents who have decreased alcohol consumption over the last year have an
increased potential of moving to the next highest level of fruit consumption by a
factor of 1.50.
Respondents who were in the 25-34 age group have a decreased potential of
moving to the next highest level of fruit consumption by a factor of 0.42.
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Respondents who were in the 35-44 age group have an increased potential of
moving to the next highest level of fruit consumption by a factor of 0.48.
Respondents who were of normal weight have an increased potential of moving to
the next highest level of fruit consumption by a factor of 1.67.
4.3.6 Conclusion
This analysis has been presented in a number of sections using descriptive,
inferential and modelling techniques. It is believed that this is the first attempt at
predicting health status, chronic disease, organisational symptomology, caring for self
and risk factors for AOP. Whilst age was not used as an outcome (dependant) variable
the statistically significant relationship between age and other variables has been
presented in Table 4.3-33 and shows a succinct view of the relationships other
variables have with age.
Table 4.3-33 Age as a Predictor Variable for Dependent Variables
Dependent Variable OR Sig 95% CI
SR Health Status 1.017 0.028 0.002 0.033
Disability 1.016 0.029 1.002 1.031
Cancer 1.053 0.006 1.015 1.093
Diabetes 1.077 0.002 1.027 1.129
Three or more CD 1.03 <0.001 0.017 0.044
Job Satisfaction 0.981 0.005 -0.032 -0.006
Thoughts of Leaving 0.977 0.005 0.962 0.993
Fatigue 0.983 0.200 -0.032 -0.003
BtE-Lack of Time 0.975 0.014 0.955 0.995
BtE-Lack of Energy 0.962 0.007 0.947 0.978
Abbreviations: SR = self-reported, OR = odds ratio, Sig = significant, CI = confidence interval, CD = chronic disease, BtE = barriers to exercise.
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This chapter, together with the literature review, informs the discussion and
contributes to the conceptual framework for understanding the health of AOP, a policy
map for ambulance services and recommendations for future research.
4.4 Stage Three - Thematic Analysis
A thematic analysis (Bryman, 2016) was conducted on the data from the semi-
structured interviews to further explore and find meaning behind the quantitative
findings and the three dimensions of context, people and interaction. It was also hoped
this analysis would inform the development of strategies to improve the health of AOP.
Gaining insight into how others see the health of AOP, and the organisational and
individual context was particularly important, especially after having the quantitative
results presented to the nine personnel who were interviewed using a semi-structured
approach (Bryman, 2006). The results of this analysis exposed a lack of perception by
most interviewees and over optimistic expectations by the researcher for this
component of the research.
A six-step approach, as described in (Braun & Clarke, 2006) was used in this
thematic analysis.
4.4.1 Step One: Becoming familiar with the data
The first step was transcribing the data from the recorded interview, reviewing
the transcriptions to ensure accuracy and rereading the transcriptions several times,
with a time gap for consolidation between each reading. Rereading is important as it
helps to understand the complexities and comprehension beyond the words, to
understand what an interviewee is saying and appreciate the details and build critical
arguments through analysis.
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4.4.2 Step 2: Generating Codes
From a theoretical perspective, a more inductive method was utilised with
themes which emerged from the data (Patton, 1990). This inductive method was
diversified with a semantic style that provided a detailed and nuanced account of the
data based on pre-existing categories determined through the literature review and
analysis of quantitative data. A coding methodology, as described by Strauss, (1987)
was employed, which resulted in words and phrases being assembled and grouped into
categories and reviewed for similarities and differences. Coding categories were
developed based on the headings in the literature review and the qualitative results
section. It was thought this would assist in linking the interviewees data with the
development of themes and the explanatory processes They included health status
measures, health improvement strategies, Health influencing factors, work
environment, demographics, occupational health and safety, health status and presence
at work. This process is shown in Table 4.4-1 and the results are described in Table
4.4-2 and Figure 4.12.
Table 4.4-1 Frequency and Proportion of Categories
Category Code n %
Health Influencing Factors c 30 37%
Work Environment e 19 23%
Presence at work h 10 12%
OHS f 10 12%
Demographics a 8 10%
Measures of Health Status b 4 5%
Health Status g 1 1%
Health Improvement Strategies d 0 0%
Total - 82 100%
Abbreviations: OHS = occupational health and safety.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Table 4.4-2 Coding Tree - Words, Phrases, Categories and Codes
First Form Categories Code First Form Categories Code
Age Demographics a BMI HSM b
Education Mental Health
Feminisation Chronic conditions
Superannuation
Skill 0 HIS d
YIA
Rest Breaks WE e
Alcohol HIF c Deskilling
Anxiety ER
Core strength Jobs available
Cynicism Connectedness
Diet Culture
Exercise Surveys
Fatigue Hours worked
Job satisfaction Respect
Knowing M’gers Shift length
M’gers advocate Shift work
Physical health Staffing
Priority One
Resilience Fitness for duty OHS f
Sleep Health promotion
SC Pre-& post testing
Stress Predicting injuries
Trust Recruitment
What to do? University Grads
Worker Injury
Health Status Health Status g
Abbreviations: HSM – Health Status Measures, HIS = Health Improvement Strategies, HIF = Health Influencing Factors, WE = Work Environment, ER = Employer Responsibility, O = Organisational, M’gers = Managers, Grads = Graduates, YIA = Years in Ambulance, SC = Socially Connected.
Absenteeism Presence at Work h
Avoidant coping
Consider leaving
Employee value
Sick leave
Presenteeism
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Figure 4-12. Proportion of Categories
4.4.3 Step three: Searching for themes
Whilst categories had already been identified and the data fitted to these
categories, themes were characterised by looking beyond the data. Initial themes were
developed using the visualisation technique of mind mapping (Greenwood, Kendrick,
Davies, & Gill, 2017). Some of these codes that formed categories, clearly fitted into
themes. For instance, there were several categories developed by codes that fitted into
a theme on the perspective of respondent’s views. From this, four themes were
developed and are described in Figure 4.13 and related to the coding in Table 4.4-1
and Table 4.4-2.
0%
1%
5%
10%
12%
12%
23%
37%
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
Health Improvement Strategies
Health Status
Measures of Health Status
Demographics
OHS
Presence at work
Work Environment
Health Influencing Factors
Percentage of Categories
Categories
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Figure 4-13. Initial Thematic Map - Four Draft Themes
4.4.4 Step 4: Review themes
The data in relation to each theme was considered in terms of whether it really
supported the theme. This resulted in a discussion that used self-asked questions to try
and develop a coherent theme (Maguire, M. & Delahunt, 2017). These questions
included:
Do the themes make sense?
Does the data support the themes?
Am I trying to fit too much into the theme?
If themes overlap, are they really separate themes?
Are there sub-themes?
Are there other themes within the data?
The need for health improvement programs
Despite much probing, there was minimal discussion/input by participants about the
need for health improvement programs and the strategies that could be implemented
to improve the health of AOP. The following quote came from an executive who had
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worked over many years to improve the health of AOP. It was the first interview
conducted and showed some cynicism. The interviewee, who was not at the end of his
career, disclosed he may be near the end of his life as he was suffering from a life-
threatening illness (Broadbent et al., 2015). The researcher wondered if the
interviewee’s personal circumstances affected his perceptions. Nevertheless, this
interviewee spoke clearly and forcefully, “A lot of people are not interested in health
and wellbeing programs even with incentives. QAS spends 80% reacting to injuries
and little or no proactive interventions. Staff are not interested and issues around
people’s health are whole of life issues – so what – if the Commissioner reads your
work, and there are lots of issues and areas for improvement and potential risks to the
organisation by the virtue of the fact they are our employees, to what extent should we
get involved in incentivising health, whose responsible for what and how much money
should be invested, and what happens if there is no effect”?
It was put to this interviewee that, despite his viewpoint, this analysis showed an
interconnectedness between the organisation of the work, the work and organisational
environment and therefore what should be done about these issue that are affecting the
health of AOP (Ilmarinen, Tuomi, & Seitsamo, 2005). The response was concerning
and whilst it may not reflect the view of the organisation, it is likely to have an impact,
as the interviewee was an executive who has influence with the organisation. “The
improvement in health is important in private enterprise, but I see in government, that
there is lip service paid to these things. There is plenty more where they came from –
e.g. if paramedics start dropping like flies – we will just recruit more”. Whilst this
viewpoint seemed to be extreme, the other executive and manager interviewees were
subtler in their response and supportive of the organisational approach to this matter.
For instance, “job satisfaction rates have improved” despite the results of this research
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showing worse job satisfaction results than the ‘Working for Queensland Survey’
(QAS, 2004 and 2006) and demonstrating an interconnectedness between job
satisfaction and fatigue, anxiety, employment type, family stressors, age, self-reported
health and education.
Health status
Nevertheless, there was no surprise expressed by the interviewees that the health
of AOP was worse than the Australian population. However, the question was asked
as to whom the responsibility for the health of an individual belonged, the organisation
or the individual. Interviewee responses ranged from “as their responsibility” through
to “we already provide support for the mental health of our people as it has been
recognised that mental health can be affected by the work undertaken by AOP”.
However, this showed a lack of understanding or listening to the results that had been
presented in relation to mental health disorders and psychological distress showing a
relationship to anxiety, some chronic diseases, self-reported health and job
satisfaction. These thoughts are influenced by the majority of the literature on
paramedics and EMDs, which reviews their health status in terms of mental health
(Petrie, Milligan-Saville, et al., 2018) and reflects a lack of understanding of the
overall health impacts on AOP by the work they do, the organisation of the work, and
the work and organisational environment (Sterud, Ekeberg, & Hem, 2006; Studnek, J.
R., Bentley, Crawford, & Fernandez, 2010).
How does working for an ambulance service affect health?
Aggressive questioning of the interviewer by one interviewee, in regards the
need for the “organisation to develop a parent/child” relationship by taking
responsibility for the health of the worker was an indication of the lack of perception
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and understanding about how the health (both mental and physical) can be affected by
the work of AOP. It should be noted that people closest to the operational work who
were interviewed, (the paramedic, EMDs and Operations Centre supervisor) did not
raise this issue. This may reflect a different perspective and a lack of understanding
about how their work affected their health. This viewpoint was also expressed in terms
of OHS, where it was felt that the organisation “was developing a good approach to a
health and well-being framework together with the Public Service Commission, which
includes a fitness for duty policy and executive health assessments”. However, it is
known that the ambulance service organises OHS on a reactive model of trying to
improve safety culture and reacting to injuries after they occur (Queensland, 2013).
The busy and often uncontrolled environment in which paramedics work, often
precludes the reporting of hazards but imposes a “if it is not safe don’t go there or do
it approach”. However, this fails to recognise that there are many instances where
there may be limited choice and that AOP have to assess the risks and will often act
despite there being a risk to their health and safety. For example, a patient collapsed
in a toilet with an inward opening door, leaves no room for subtlety or safe lifting.
Risk factors that contributed to presenteeism included overweight, poor diet,
lack of exercise, high stress and poor relations with co-workers and management
(Pohling et al., 2016). These risk factors hold serious implications for any organisation
and for AOP are linked to absenteeism, creating a cycle of presenteeism and
absenteeism that is difficult to control. For instance, obesity has been related to poor
CPR. Working parents and dual responsibility for children has resulted in more parents
wanting to work part time or taking accrued leave or sick leave to care for children
(Bolzendahl & Pierski, 2016). This creates reduction in financial support for a family
and may force parents to come to work when ill, because of little if any access to paid
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leave. This research demonstrated interconnectedness between the mental and physical
health (Harris, 2018) of AOP and a relationship to the organisation of the work and
the work environment (Moreno et al., 2019) via an assessment of organisational
symptomology (job satisfaction, caring for one’s self, work health culture and thoughts
of leaving) and other variables such as chronic disease. There was further discrepancy
between the two groups with non-operational personnel suggesting ambulance
organisations were becoming more flexible in terms of providing notice for absence
which was not necessarily sickness absence. “QAS has taken a conscious decision to
try and accommodate unplanned absenteeism. For instance, Time off in Lieu (TOIL)
was often difficult to get, so people take sick leave, so we have made it easier to get
TOIL with a couple of weeks’ notice”. However, it was pointed out by the operational
personnel that this does not address the fundamental problem of absenteeism and
presenteeism (Jensen, Andersen, & Holten, 2017). For instance, the following
comments point to a discrepancy in what is perceived to be happening versus what is
actually happening and adds to the view that there is a disconnect between operational
and non-operational personnel:
1. “We have a problem and what are the QAS going to do about it rather than
ignore it. I have been helped, but that is running out and the QAS can no longer
help with family friendly rosters – the processes and access have been
exhausted”. (Interview paramedic)
2. “The use of family friendly or flexible rosters often helped to manage children
and family issues but did not address short term immediate absence needs or
reduced pay and superannuation and the relationship to poor health associated
with under-employment”. (Interview paramedic)
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Regular breaks
This issue is further evidenced when the interviews turned to regular breaks.
“Doesn’t know why crews don’t consider they have had a break – not urgent patients,
don’t require two people to treat, they are at a facility where they can sit down and
eat and have a cup of coffee”. The majority of ACPs and some EMDs’ indicated that
they were not getting regular rest breaks, even though EMDs have these rest breaks
built into their roster. Non-operational interviewees were concerned that there was a
negative relationship between an inadequate number of rest breaks, health status and
job satisfaction among some of the respondents and suggested that additional rest
breaks at hospitals and built into their roster were already implemented. This raises the
issue of what is a regular rest break and why and how it is judged differently by
managers and workers. The literature describes a regular rest break as one where the
worker will not be required to go back to work for a period of time and may include a
short nap (Healy et al., 2008; Zacher et al., 2014). The consequences of irregular rest
breaks in ambulance work have been related to increased risk of musculoskeletal
injuries (Courtney, J. A., 2010). Although it may not be possible in the short term to
give AOP regular rest breaks, especially paramedics, it should be noted that especially
on night shifts, regular rest breaks associated with naps and where the worker was not
required to return to work, have been associated with decreased injuries and accidents
at work (Tucker, 2003). Although the reason for irregular rest breaks for EMDs was
not evaluated in the AHS 2015 survey it may be related to workload and staffing levels
in smaller operations centres particularly at the supervisor level, which may not a have
a relief option.
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Representative nature of respondents and job satisfaction
It was explained that the respondent population was representative of the
ambulance population in terms of gender, age and employment type and that the
analysis showed no statistically significant difference. Despite being very specific and
showing the interviewees that the proportion of respondents in the 20 to 29-year age
group was higher for the respondents to the AHS 2015 than the proportion in the
ambulance service, the viewpoint that the respondent population was not
representative of the ambulance population persisted and was raised by several
participants, “Younger staff did not bother doing the survey”. It was raised by the
interviewees, as one reason some of the AHS 2015 results were quite different from
that experienced by ambulance organisational surveys (QAS, 2004 and 2006). For
instance, 70% of participants in a recent a staff satisfaction survey described their job
as okay or better than okay, whilst in the AHS 2015, only 50% had this opinion. This
may reflect the outcome differences described in the literature between an
organisational survey and anonymous independent survey often due to poor design,
differences among stakeholders, poor communication, conflict and understanding
(Palmer, 2002). However, it may also reflect a lack of understanding of these issues.
For instance, 51% of respondents had ‘thoughts of leaving’ the ambulance service, yet
the turnover rate is less than 4%. This showed a lack of understanding that the
associations with these two elements are different. Thoughts of leaving are predicted
by job satisfaction, psychological distress, cancer and long-term conditions (Lee,
Hom, Eberly, Li, & Mitchell, 2017) “I’ve had constant sinusitis whilst in ambulance”
whilst turnover rate has an economic element to it (Mitchell, Holtom, Lee, Sablynski,
& Erez, 2001; Lee et al., 2017) “but a lot of that is due to it being hard to find a job,
superannuation and people are looking at can they afford to retire”. It was
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disconcerting to hear comments such as “There is plenty more where they came from
– e.g. if paramedics start dropping like flies, we will just recruit more” and “The
organisation may invest more money if there was increases in mental health injuries
etc. but the real reaction is that the organisation would recruit more people”. This
was a revealing moment in the interviews, and the question was asked, “Is this the
attitude of the ambulance service”. The answer was as blunt as the previous comments,
“may not be the attitude but that is the result”. This adds to not only the lack of
perception and understanding between operational and non-operational personnel
(Mikkelsen, Jacobsen, & Andersen, 2017), but it suggests that what the ambulance
service says (e.g. the health of our staff is a top priority) is not actually happening at
the root level. As an example, a paramedic who had been away from her station made
this comment about going back to her station, “I saw people I haven’t seen for two
years and didn’t recognise them – people had put on weight, were tired, poor morale,
saddened, they are almost downtrodden”.
Organisational change
Interviewees were not surprised that sleep hours had decreased in the last 15
years with one of the major issues being shift type and length, “2003 went from 10/14
to 10/10 shifts and in 2007 went to 12/12s. Twelve hour shifts are the worst thing that
ever happened”. Many factors have changed in ambulance services over this period,
including longer day shifts, respondents were less likely to get sleep on a night shift,
increased gender diversity and casualisation of the workforce, organisational
restructures, a pre-employment model with undergraduate degrees and increased
clinical complexity and governance. It was implied that a comparison of sleep hours
in an ambulance service may be inaccurate or not significant because of these changes.
Whilst the impact of the changed context may have some relevance, the number and
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complexity of the changes may be related to increased organisation and ambulance
specific stressors (Sterud et al., 2008b), poor health (Sterud et al., 2008a; Donnelly, E.
& Siebert, 2009; Hansen et al., 2012) and risk factors for poor health. This raises the
perspective of an organisation that is evidence based in its clinical practices, but not
having current knowledge of the humanistic aspects of organisational change in
regards work, the organisation of the work and the work environment, on personnel
(Vakola & Wilson, 2004). That change is constant is not in doubt, but its impact on an
ambulance workforce is not understood, there is little research on this area and the
impact on the health of AOP is unknown. Whilst this is not a call to slow improvement
and efficiency through change, it is an appeal to find how this affects the health and
work-life balance of AOP. As the organisation changes, individuals who lead,
supervise and manage, may themselves change to keep the focus on clients and
enhance the focus on the health of AOP (McFarlane, Enriquez, Schroeder, & Dew,
2011).
Injuries, health and the relationship to work and the environment
The AHS 2015 found that anxiety and stress were inversely related to self-
reported health. Intent to leave, obesity, poor work-related health culture and sleep
hours had an inverse association with self-reported health and job satisfaction. A
positive relationship was described by the AHS 2015 between respondents who
exercised more, had better self-reported health, slept more and were not obese with
organisational and work factors. In addition, the literature does report that
organisational stressors and culture are related to the health status of ambulance
personnel (van der Ploeg & Kleber, 2003; Sterud et al., 2011). There was little
understanding of the relationship between the organisational and health related factors
by the interviewees. The interviewer was given the impression that the individual was
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responsible rather than the relationships mentioned above in relation to the
organisational factors and health. As an example, “Continue to have an increase in
soft tissue injuries (backs and shoulders), 40-45 age group with shoulder injuries even
with new manual handling equipment (this is only Powerlift stretchers), as they try to
use it in a manner it was not designed for. There are less injuries in younger people
which include rolled ankles with females getting out of big trucks. Age group greater
than 40 years of age who did not grow up with electronic stretchers are universally
overweight, have poor core strength and become repeat injurers”. This line of
reasoning suggests a lack of an evidence base in determining the risk factors associated
with of injuries (Vallmuur et al., 2016). Additionally, it implies AOP are not careful
enough, there is a need for workplace wellness programs (Lerner et al., 2013) and an
obligation to develop strategies for improving health and reducing incidents and
hazards that cause injuries of AOP.
Workplace wellness programs
Interview participants believed that workplace-based wellness programs would
not be effective or necessary (Caperchione, Reid, Sharp, & Stehmeier, 2016) (e.g.
“Queensland Fire and Emergency Services (QFES) have gyms but their health is just
as bad”). This reflects an organisational attitude of we will provide the facilities and
the AOP will be responsible for using them. However, a more appropriate attitude may
be that we will provide the facilities and encourage and assist AOP to make their use
part of their work-life balance. Whilst the evidence about the benefits of workplace-
based wellness programs was inconclusive (Lerner et al., 2013) and non-existent in
ambulance services, the cost of unplanned absences, presenteeism, workplace
accidents and injuries, recruitment and sub-optimal performance must be a
consideration in endeavouring to improve the health of operational personnel. There
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was a sense of looking for solutions rather than being advised about what the problems
were, as there was a sense that these issues were already known. Comments such as
“there are lots of issues and areas for improvement and potential risks to organisation
by the virtue of the fact they are our employees and to what extent should we get
involved in incentivising health, who is responsible for what and how much money
should be invested and what happens if there is no effect”. This may reflect the
expectations of AOP personnel, who are used to seeing immediate results from clinical
interventions, such as pain relief. It also reflects a lack of understanding by non-
operational personnel that the results of interventions may not be immediately visible
from an organisational perspective (White et al., 2016).
4.4.5 Step 5: Defining themes
This is the final refinement of the themes and identifies the essence of the
themes. The final themes are shown in Figure 4.14.
Final theme one: Understanding how the health of AOP is affected by work,
organisation of the work and the working and organisational environment is
lacking.
AOP were clear and consistent about this issue and agreed with the analysis of
the quantitative data. They felt that managers did not understand their issues and
challenges and how current practices could be improved. In addition, they suggested
that the health of AOP was a combined responsibility of both and individual and the
organisation and that it would be more effective to change the organisation of the work
and the working environment. The following reflects the view of the organisation.
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“QAS is developing a good approach to a health and well-being framework
together with the Public Service Commission, which includes a fitness for duty policy
and executive health assessments” (Director).
Final Theme two: The evidence base for improving the health of AOP is deficient
Both AOP and managers agreed that this was the case, but AOP were more likely
to raise the issue of finding a solution than managers.
“What makes people exercise, watch what they eat and be stress free, why are some
people like that and others are not – figure this out as it is the crux of the problem in
ambulance” (Interview ‐ paramedic)
“A lot of people not interested in health and wellbeing programs even with incentives
need to speak to MD re this in recover from injury and illness. QAS spends 80%
reacting to injuries and little or no proactive interventions. Staff are not interested
and do you extend your responsibilities beyond that of an employer to a parent
relationship – issue around people’s health are whole of life issues – so what – if
commissioner reads it and there are lots of issues and areas for improvement and
potential risks to organisation by the virtue of the fact they are our employees to
what extent should we get involved in incentivising health, whose responsible for
what and how much money should be invested and what happens if there is no
effect” (Interview - Executive Director).
Final theme three: Difference in perspective of the causes of and responsibility for health between AOP and non-AOP.
This difference in relation to who is responsible for an individual’s health
between AOP and non-AOP was striking and disturbing. AOP understood the
relationship between the organisation of the work, the working and organisational
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environment and that it affected their health whist non-AOP did not seem to
understand some basic principles e.g. what is a break?
“We have a problem and what are the QAS going to do about it rather than ignore it.
Has been helped with QAS but that is running out and can no longer help with family
friendly rosters – the processes and access have been exhausted. Talk of the boys
club about 8 years ago – known as certain group of people managed in a certain way
and it was punitive. It is really turned around from there, but people are still gun shy
– men and women were disciplined and put on performance plans for being sick.
Managers need to advocate for their staff not just follow the processes. Described
being told they wanted her job after having a bowel collapse operation – very
inappropriate”. (Interview – paramedic)
“The improvement if health is important in private enterprise but I see in government
that there is lip service paid to these things. There is plenty more where they came
from – e.g. if paramedics start dropping like flies – we will just recruit more”.
(Interview – Executive Director).
Final Theme Four: Limited understanding that the health status of AOP is worse
than the Australian population and leadership is need in creating change.
Whilst most of those interviewed agreed that their understanding is limited, there
was different view from AOP and non-AOP about leadership and how that change
should happen. Except for one, non-AOP considered the mental health aspect priority
and that overall health was secondary and the responsibility of the AOP.
“wants access to people for dieticians, physiologists etc. and wants people to
understand the intensity of work and shift length and how that affects them – they
have lots of time for doing something as it is not high intensity. However, people
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cling to award conditions as there is a disincentive to not take a break. Twelve hour
day shifts are the worst for diet, family, exercise – they are atrocious. Discussion on
length of shifts – and a further study to determine causes. Are trying to do a wellness
thing and everyone talks about wellness incentives and not interested. Need someone
to bring it to their face e.g. wellness unit and associated with Priority one and not
run by WHS or Priority one – however their structures are important in terms of
physical health – the peer element is important. Opportunities with leaders and
managers”. (Interview with Assistant Commissioner)
“need a fundamental change in the way business is done? The people who do the
work have to come first not the executives and managers – everyone should be
saying the ambulance service cares for me. Demand is increasing, workload is
increasing, and paramedics are going to increasing number of chronic conditions
and minor injuries. So, the need to continue with non-urgent interventions in
ambulance. Not enough fun and too much pressure – people don’t want to be there
and want the big job. People are eating the wrong stuff and are getting late jobs
which affects family”. (Interview with paramedic)
Final theme five: Whilst ambulance services have policies and statements that
indicate the health of personnel is a priority. The focus is on the individual changing
not the workplace or environment.
The focus of the ambulance service is on selecting the right person, managing
workplace health and safety, reducing absenteeism and providing assistance for those
with psychological distress and mental health disorders. Some of the non-AOP
comment suggests that finding help is the responsibility of the AOP and that programs
are available if people look for them. The point made by AOP is that the responsibility
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is passed back to AOP with consideration of the impacts of the organisation of the
work and the working and organisational environment. It goes back to the Hierarchy
of Controls where it is considered more effective to change the organisation of the
work than change the habits of individuals.
“When people get injured or sick, process could be made so much easier by
empowering people rather than disempowering them. For example, if she does her
back, the manager should say what are you interested in and trying to find the things
that they are interested in and good at and will contribute rather than pushing paper.
We focus on the injury or illness rather than the holistic approach e.g. counselling
and psychological approach to health. However, it has improved over the last 10
years” (Interview EMD)
“The biggest issue is culture and bridging the gap between central office and those
working on the road. Do people have the time to do it? Good OIC will listen, make it
happen are reasonable and make a difference”. (Interview paramedic)
“Different in different government departments so why some people are regarded as
more valuable than QAS people”? (Interview – operational manger)
“Sick leave is probably generational where people see sick leave as an entitlement
rather than like the older generation who save sick leave for when they get sick.
Generational bias in current staff numbers – exponential growth in QAS employees in
the last 10 or so years – from 1800 – 4200 now”. (Interview – Assistant
Commissioner)
“Drug and alcohol are being looked at by a Fitness for Duty group - what does
fitness for duty mean (health, diet etc.) – join with AV and QAS to establish a policy
position and framework. Working group Sonic do preemployment, psychometric
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testing. Qld health has a range of resources available online Health Promotion –
online via QLD Health site – lots of resources for all staff. However, there is some
doubt as to those that know are available – they only have to access it. E.g. Free
QUIT program so awareness may be a problem”. (Interview – manager)
Figure 4-14. Final Thematic Map – Five Themes
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4.5 Conclusion
This chapter was presented in three sections:
1. Stage One – Associations, effects and odds ratios.
2. Stage Two – Regression modelling.
3. Stage Three – Thematic analysis of qualitative data.
The first section was large and complicated with almost 1200 pages of output
from SPSS and whilst it informed further analysis, it introduced the spectre of Type I
(false positive) and Type II (false negative) errors. Due to the scale of the data analysis,
many tables have been developed to describe the results. However, they have been
largely included in Appendix C and cross referenced in this chapter. This section did
however inform regression modelling and the qualitative component of the research
(together with the literature review) which then led to Stage Three of the results – the
‘Thematic Analysis’ of the qualitative data gathered through a semi-structured
interview process.
Regression analysis provided significant insight into a complex and little
understood issue by clarifying relationships, the strength and direction of that
relationship between dependent and independent variables. This confirmed the
majority of the analysis in Stage One and predicted the value of the dependant variable
(e.g. fatigue) based upon the values of the independent variables (e.g. job satisfaction,
anxiety, employment type, family stressors, age, self-reported health and highest
schooling).
The final stage was the thematic analysis which concluded with the
development of five themes and importantly, the researchers epistemological and other
assumptions, ‘why’ and ‘how’, were made explicit in the analysis.
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5 Discussion
5.1 Introduction
The aim of the research was to explore the health status of AOP and to develop
a conceptual understanding that may inform policy development, management and
future research. In doing so, this research sought to describe, identify and evaluate,
using a mixed methods approach, the individual, organisational and environmental
factors that may influence health status, and to identify and evaluate strategies that
may improve the health status of AOP.
This chapter integrates the findings of the AHS 2015, the literature review and
outcomes of key stakeholder interviews with the current evidence. The context
explores how the findings of this research may extend the grasp of these issues and
inform the development of a conceptual framework of understanding. It seeks to
identify similarities between these findings and what was previously known, identify
new knowledge, theoretical models and explore options for practical application. This
Chapter is organised around the original objectives:
1) To describe the health status of ambulance operational personnel.
2) To identify the individual, organisational and environmental factors that impact on
health status.
3) To develop a conceptual framework for understanding the relationships between
causative factors and health outcomes.
4) To identify strategies that may lead to the improvement of health.
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Finally, the Chapter brings this discussion together around a conceptual
framework for understanding the ways in which these factors may influence each other
and how the work life balance of AOP may be improved to increase their health and
wellbeing.
5.2 The Health of AOP
Making comparisons between the health status of Australian paramedics and
those of other countries was difficult, as the fundamental structure of ambulance
services was often very different. In addition, this research reflects a profession in
transition to gender balance and university qualifications, whereas in the U.S. the
gender balance has changed little over time and university qualifications amongst
paramedics was on average 5% (Bentley, Shoben, & Levine, 2016). Table 5.2-1 is a
summary of key findings that have been reported in results, for the three employment
categories and assist in putting this discussion into context. In terms of the regression
analysis, the only employment type that was predictive of any dependent variable was
supervisor/managers. Being a supervisor manager was predictive of increased job
satisfaction, overweightness, diastolic blood pressure and sedentary behaviour and
decreased rest breaks and exercise. This makes intuitive sense as supervisor managers
are older than paramedics and EMDs, their work has a high level of sedentary
behaviour associated with it (not as high as EMDs) and we know that increased blood
pressure is associated with obesity (Jordan et al., 2012). The implications for this are
concerning as there is evidence that supervisor support is a key mechanism in
improving worker health (Hämmig, 2017).
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Table 5.2-1 Characteristics of Respondents by Employment Category
Category Paramedic Supervisor
Manager
EMD Overall
Male/Female % 64/36 81/19 29/71 64/36
Age (mean) 37 years 46 years 37 years 39 years
Tertiary Qualifications 68% 13% 17% 58%
Operational (% yes) 78% 79% 80% 86%
Years in Ambulance 11 years 21 years 6 years 12 years
Years of shift work 12 years 19 years 8 years 13 years
In relationship 70% 89% 83% 83%
Do other work 56% 56% 43% 54%
Considered leaving 53% 44% 56% 52%
Positive WR health culture 36% 56% 27% 39%
It is a good job 37% 57% 23% 38%
Smokes 7% 11% 18% 9%
SR ‘very good’ health 44% 42% 29% 44%
BMI - overweight 55% 78% 72% 61%
BP normotensive 81% 67% 81% 78%
K10 – severe distress 61% 63% 59% 61%
Experiences family stressors 49% 49% 57% 50%
Experiences personal problems 20% 13% 15% 18%
Anxiety (frequent-constant) 23% 25% 32% 24%
Disability 39% 41% 51% 41%
Chronic disease 25% 45% 30% 30%
Back problems 36% 32% 32% 35%
Sit >10 hrs per day 60% 70% 95% 67%
Fatigue (Frequent – constant) 48% 44% 31% 46%
Abbreviations: SR = self-reported, BMI = body mass index, BP = blood pressure, K10 = psychological distress score, WR = work-related.
One of the questions asked in the work-related health culture component of the
AHS 22015 was ‘My immediate supervisor supports efforts to adopt healthier lifestyle
practices’ (70% did not agree). Another standout from Table 5-1 is that EMDs report
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
less ’very good health’, have higher rates of ‘non-clinical anxiety’ and ‘disability’ than
other employment categories and 95% sit for greater than 10 hours per day. Obesity
rates are 72%, however only 30% report chronic disease, which is higher than
paramedics but lower than supervisor/managers. This is contradictory to the literature
(Booth, 2001), but may be partially accounted for by younger age. On the other hand,
paramedics have higher rates of back injuries and personal problems, but lower rates
of anxiety and chronic disease which may be accounted for partially by an increasingly
younger workforce
5.2.1 Occupational Health and Safety
Although the evidence that ambulance personnel experience higher rates of
injuries (including fatal injuries) than other workers is clear (Maguire, B. J. et al.,
2005; Roberts, Sim, Black, & Smith, 2015; Reichard et al., 2017), the evidence in
relation to the causes of these injuries in ambulance personnel was mixed. In Turkey,
traffic accidents, needle stick and body fluid splashes account for the majority of
injuries (Yilmaz et al., 2016), whilst in the U.S., it was traffic accidents, manual
handling and occupational violence (Reichard et al., 2017). In Australia on the other
hand, the predominant cause of occupational injuries was lifting, carrying and pulling
(Maguire, B.J. et al., 2014). Similarly, those factors that may contribute to injuries,
such as health status, risk factors for poor health and health behaviours are not clear
(Dropkin et al., 2015). The AHS 2015 did not seek to contribute to an understanding
of rates of injury, but rather focussed on the general health status of AOP. For this
reason, the factors that impact on the health of AOP sometimes form the basis of OHS
claims but also act as co-morbidities (including mental health, psychological distress
and chronic disease risk factors such as obesity), which may predispose individuals to
injury or complicate recovery. The AHS 2015 found that 50.1% of respondents had
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‘thoughts of leaving’ and 54.3% did other work. Sixty seven percent of those who did
other work specified that work as either home duties or voluntary work, and only 13%
performed paid work, which included owning their own business. Whilst the question
wasn’t asked about why AOP did other work, it appears this is not because AOP were
poorly paid, but as a necessity (home duties - 23.5%) and giving back to society
(voluntary work - 12.8%). However, when compared to the Queensland population,
70.5% completed unpaid domestic work and 18.8% did voluntary work. Initially the
AHS 2015 results for home duties and voluntary work appeared to be high but is low
compared to the Queensland population and may be explained by the high rates of
fatigue and lower hours of sleep for AOP.
Back injuries
The AHS 2015 asked two questions about back injuries, which are the majority
of musculoskeletal injuries experienced in ambulance work in Australia (Studnek,
Jonathan R., Crawford, Wilkins, & Pennell, 2010; Maguire, Brian J. & Smith, 2013).
This research suggests a link between back injuries and working in an ambulance
service, especially for paramedics and supervisor/managers. Thirty-four-point eight
percent of respondents identified a back problem compared with 16% of the Australian
population (AIHW, 2017). The AHS 2015 found the risk of a back problem amongst
males was slightly higher than females, which was dissimilar to a previous study of
ambulance officers in Sweden (Aasa, Brulin, et al., 2005). This may relate to the time
difference in the studies and the changes that have happened in the Australian
ambulance service in relation to reducing incidents and hazards, such as self-loading
stretchers, assistive lifting devices and an improved focus on safety culture. It may also
relate to females in the Australian ambulance service knowing their limits, following
risk management strategies in place and calling for assistance, whilst males have a
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
more stoic approach, similar to that described in monitoring their own health
(Wiitavaara, et al., 2007). Punnet, et al., 2005 suggested the burden of lower back pain
is related to the higher participation of males in the labour workforce. The proportion
of males in the ambulance services was higher than that of females when the AHS data
was collected, and as male/female ratio approaches 50% it is expected that the current
picture will change, and females will report more back injuries than males (Berg, Hem,
Lau, & Ekeberg, 2006; Maguire, Brian J. & Smith, 2013). This research found a similar
association between musculoskeletal issues, anxiety, a mental health disorder and low
job satisfaction from what was described by Aasa et al. (2005).
Whilst causes were not assessed, hearing issues were three times greater for
those who had back problems. This relationship has not been previously described in
the literature and may well relate to those who work in busier stations reporting more
hearing loss and back injuries. Hearing loss is known to increase with age (Yang,
Schrepfer, & Schacht, 2015) and as AOP aged, they were also likely to report hearing
problems. Lifetime exposure to noise was not assessed, however hearing is a critical
element for AOP. With EMD’s, understanding and passing on locations of incidents
is important and with paramedics, understanding what a patient is relaying is a
diagnostic element in determining an appropriate clinical approach. The AHS 2015
results demonstrate a confusing picture of hearing loss and its associations in an
ambulance service. For instance, it is known that hearing loss is related to aging and
has been associated with poor communication, lowered health related quality of life
and decreased cognitive and physical functioning (Bainbridge & Wallhagen, 2014).
However, in firefighting and ambulance populations, the evidence for hearing loss was
mixed with some research indicating that hearing loss decreases faster in these
occupations (Ide, 2011) and other research suggesting that emergency service workers
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were not at risk for occupational noise induced hearing loss (Clark & Bohl, 2005).
Whilst there is no evidence to suggest overuse, one such explanation of this association
may be related to the use of codeine-based products and paracetamol, where it is
known that overuse of these medications may be associated with sensorineural hearing
loss (Freidman et al., 2000). This needs further investigation as those who report
hearing, report back injuries and work in higher workload locations and may self-
medicate for back pain.
5.2.2 Chronic Disease
The Australian Institute for Health and Welfare (AIHW) describes eight diseases
(arthritis, asthma, back pain, cancer, CVD, chronic obstructive pulmonary disease,
diabetes and mental health) as part of the chronic disease profile of the Australian
population and that chronic diseases were the leading cause of ill health in the
Australian population (AIHW, 2016b).
Chronic disease
Some chronic diseases are known to be related to shift work (cardiovascular and
cancer especially) (Mosendane & Raal, 2008; Stevens et al., 2011), although there has
been little research on these associations in AOP. The evidence in relation to chronic
disease is mixed, with AOP in this research reporting higher rates of some chronic
diseases than the Australian population. The rate of chronic disease in U.S. based EMS
workers was shown be similar to the U.S. population (Drew-Nord, Hong, & Froelicher,
2009; Banes, 2014). The AHS 2015, found that 64.3% percent of respondents reported
at least one chronic disease compared with 50% of the Australian population. Males
reported more chronic disease than females and those who had three or more chronic
diseases tended to be older or work in rural ambulance stations. Seven-point six
percent of respondents reported three chronic diseases compared with 4.8% in the
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Australian population. The regression modelling showed BMI, age, and psychological
distress are statistically significant predictor variables of three or more chronic
diseases in the respondent population. We know that the determinants of ill-health in
the Australian working age population have many causes (AIHW, 2018). Table 4.3-33
shows a comparison of the first and second leading causes of ill health in the Australian
population as against similar data from the AHS 2015. This shows a significantly
higher rate of mental health diagnosis and back injuries in the AOP as compared to the
Australian population.
There are significantly worse rates of mental health disorders, coronary heart
disease and back problems in the respondent population compared to the Australian
population. This should be seen as a wakeup call for any ambulance service in
Australia, especially since this research has shown that psychological distress and
chronic disease are predictors of mental health disorders, sleep is a predictor of
cardiovascular disease and back disorders are predicted by mental health disorders,
personnel and family stressors and job satisfaction. Psychological distress and mental
health disorders are known to be high in ambulance services (Asbury et al., 2018;
Petrie et al., 2018) and sleep is known to be poor (Schernhammer, 2016; Neufeld,
Carney, Dolezal, Boland, & Cooper, 2017). Cardiovascular disease and back problems
have been shown by this research to be significantly higher than the Australian
population and job satisfaction have been shown to be worse than that described by
the ambulance service.
It should be noted that within the ambulance population the male rate of chronic
disease was three times greater and the female’s rate of chronic disease twice that of
the Australian population. Whilst this relates to the previous discussion on three or
more chronic diseases, four percent of females have one or more of the eight selected
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chronic diseases in the Australian population (AIHW, 2018). The differences between
what was described in the respondent population and the Australian population may
be accounted for by women living longer than men (Austad & Fischer, 2016) and that
in the respondent population female participation in the ambulance workforce declines
at a greater rate than male participation over the age of 45 years (Krause & Sawhill,
2017). This could have a number of relationships with what is known about work
ability in females decreasing at a greater rate than that of males as they age, especially
where job demands do not decrease (Pranjic, Gonzales, & Cvejanov-Kezunović,
2019).
Arthritis
There was little difference between the rates of arthritic conditions in the
Australian population (16.1%) and the AHS 2015 population (15.6%). Additionally,
this research has shown that psychological distress, bodily pain and chronic conditions
are higher in the respondent population than the Australian population and was further
supported by the following. Arthritis was seen to increase as years of shift work and
years in ambulance increased. Arthritis is known to be associated with chronic pain
(AIHW, 2016b) as is obesity (Okifuji & Hare, 2015) and these relationships were
confirmed for the respondent population. The links between bodily/chronic pain and
obesity were thought to include structural factors such as lifting demands associated
with manual handling, inflammatory markers, depression, sleep and lifestyle (Okifuji
& Hare, 2015). Inflammatory markers and lifestyle were not able to be assessed in the
AHS 2015, and back injuries, depression and sleep (which was included in the
modelling) showed no relationship with the respondent population. Additionally, the
regression model showed BMI and bodily pain to be statistically significant predictors
of Arthritis in the respondent population. It was not known why the rates of Arthritis
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in the respondent population differs little from the Australian population, as all
indications were that the associations and predictors with and of Arthritis were worse
than that of the Australian population. One explanation may lie in the help seeking
behaviours of AOP, which was known to be less than that of the general population
(Sterud, Hem, Ekeberg, & Lau, 2008) and the differences in help seeking behaviour
between males and females (Juvrud & Rennels, 2017).
Cancer
Cancer is known to be responsible for almost one fifth of the burden of disease
in Australia and is associated with increasing age (AIHW, 2016b). There was no
suggestion in the literature than cancer was associated with being an AOP. However,
there are suggestions that there was an association between cancer and shift work
(Shariat et al., 2015). The AHS 2015 showed that shift work and age were associated
with a diagnosis of cancer, with rates of cancer for AOP slightly higher than that of
the Australian population (1.8 vs.1.3%). The regression model confirmed age and shift
work were associated with cancer in AOP. However, the greatest effect associated with
cancer in the respondent population was shown to be frequent to constant anxiety.
Stress and anxiety are controversial in determining the risk for cancer and it is thought
that any link may be due to secondary affects such as tobacco smoking, alcohol and
overeating and that stress may be a by-product rather than a risk factor for cancer
(Heikkilä et al., 2013). However, this is the first time that these associations and
predictors have been demonstrated in AOP. That is, this research has shown an
association between being an AOP and cancer, primarily through high rates of anxiety.
It is clear that ambulance services have to act to reduce anxiety that is associated with
work, the organisation of the work and the working and organisational environment
for AOP.
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Cardiovascular disease (CVD)
As with cancer, CVD is linked to shift work especially night shift workers
(Mosendane & Raal, 2008). It was also linked to adverse risk factors such as obesity,
diet, tobacco smoking and poor sleep (Ramin et al., 2015). There is evidence that CVD
may be linked to ambulance work, most likely through risk factors associated with
chronic and acute organisational and ambulance specific risk factors (Sterud et al.,
2011; Hegg-Deloye, Sandrine et al., 2013). The AHS 2015 added to this evidence,
finding respondents with a rate of CVD 2.5 times that of the Australian population.
Supervisor/managers were more likely to report CVD, which may reflect ambulance
stressors, age and years of shift work. Those with moderate and severe psychological
distress, a disability, fair to poor self-reported health, asthma, a cancer diagnosis,
diabetes, arthritis, feeling depressed, overweightness, low job satisfaction, sleep < 6
hours and poor to very poor sleep quality on rostered days off were all more likely to
report CVD.
Whilst variables that were shown to be associated with the CVD in the
respondents were included in the regression model based on their effect size or were
contextually significant, only one variable was statistically significant in the final
model. Very poor, poor and fair sleep quality on rostered days off was shown to
slightly increase the risk of having CVD. The AHS 2015 collection of sleep hours were
categorised into those on rostered days off that were ≥ 7 hours and ≤ 6hours. There is
evidence, based on this categorisation of sleep hours that people who sleep ≤ 6 hours
per night have a relationship to CVD (Grandner et al., 2010) and mortality (Hublin,
Partinen, Koskenvuo, & Kaprio, 2007). In a meta-analysis of sleeping problems,
PTSD, obesity and CVD in paramedics, it was shown that sleep problems were
prevalent in this group of workers secondary to acute and chronic stressors that can
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lead to the development of CVD (Hegg-Deloye, Sandrine et al., 2013). It should be no
surprise that CVD was worse in the respondent population with their reported decrease
in sleep hours, high rates of psychological distress and acute and chronic stressors and
increased fatigue. Patterson, Buysse, Weaver, Callaway, and Yealy (2015) reported
that sleep quality was related to CVD through secondary measures such as a weaker
recovery between shifts and the same relationship is very likely in this research. What
needs to be looked further is whether AOP have enough time to recover between shifts
or blocks of shifts, especially given the length of shifts, irregular breaks and extended
shift hours. However, Sofianopoulos et al. (2012) suggested there was a lack of
literature showing the effects of poor sleep quality, low sleep hours and shift work in
AOP. Lastly, sleep was also related to self-reported health and overweight in the
regression modelling. So, why is sleep poor? This is discussed in the section 5.2.3.
Sleep is a complex issue made more so by being an AOP who works shift work, with
high rates of chronic disease and overweightness which were predictors of poor sleep.
The strategies for improving sleep will be controversial. Based on current evidence,
they may include pre-employment testing for shift work disorder, circadian principles
in designing rosters, changing shift patterns, pharmacological interventions, napping
strategies for work (this will be difficult to incorporate into an ambulance operational
environment) and home and bright light exposure on night shift (but this has been
implicated in cancer).
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Diabetes
Risk factors for diabetes are known to include insufficient physical activity,
saturated fat intake, obesity and tobacco smoking (Myint, Luben, Wareham, Bingham,
& Khaw, 2009). There is evidence to link shift work, particularly rotating shift workers
to diabetes (Bannai et al., 2016; Claus, Schuster, Oberlinner, & Webendörfer, 2017).
It would be logical to suggest that diabetes was a risk for AOP with factors such as
shift work, sedentary behaviour, obesity, stress and sleep problems shown to be high.
The rate of diabetes in the respondent population (4.4%) was slightly higher than
the Australian population (4.0%) and increased with age. Males report more diabetes
than females. EMDs and supervisor/managers were more likely to report diabetes as
were paramedics who had severe psychological distress, poor to fair self-reported
health, a disability, CVD, a back problem, a diagnosed mental health condition, a
cancer diagnosis, personal and family stressors, overweightness, hypertension, slept <
6 hours per night on rostered days off, or had poor to very poor-quality sleep. However,
the regression model showed a different picture, with three statistically significant
predictors of diabetes that included BMI, fatigue and age. These three predictors were
also linked to diabetes in the literature review (Studnek, J. R., Bentley, et al., 2010;
Heraclides, Chandola, Witte, & Brunner, 2012; Zahra, Lee, Sun, & Park, 2015; Claus,
Schuster, Oberlinner, & Webendörfer, 2017). However, each of the variables
associated with diabetes for paramedics had an association with BMI, fatigue and age.
For instance, independent variables such as gender, age, being a supervisor/manager
and psychological distress were all predictors of being overweight. Apart from the
obvious strategies for reducing the risk of diabetes such as weight reduction, improved
diet and increased exercise, there will need to be consideration given to monitoring
work hours. Long work hours were associated with an increased risk of diabetes which
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may be associated with secondary factors such as fatigue. This research showed that
38.4% of respondents worked ≥ 45 hours per week. This is the point at which Bannai
et al. (2016) described shift workers experiencing greater risk of diabetes. From the
perspective of AOP, long hours work was related to higher income, but from an
organisational perspective, long work hours were associated with increased injury and
illness. Controlling working hours may mean controlling involuntary and voluntary
overtime and lead to increased cost with the need for more AOP. It may also lead to
increased numbers of AOP seeking other employment on a casual or full-time basis to
increase income. This is an interesting discussion, as it was raised in the semi-
structured interviews as to what point does an employer take responsibility for the
health of employees, if at all. However, if employers allow employees to work longer
hours (e.g. involuntary overtime and overtime shifts), and health status is associated
with longer hours, it follows that employers should take partial responsibility for the
health of employees.
Obesity
Obesity was shown to be linked to diabetes in the Whitehall II study (Heraclides
et al., 2012) and to Danish health care workers (Poulsen, Cleal, Clausen, & Andersen,
2014), which did not include ambulance personnel. The Whitehall II study indicated
that diabetes was associated with work stress which was recognised as being high in
ambulance services and includes acute and chronic stressors as a result of the work,
the working and organisational environment (Wong et al., 2012; Hegg-Deloye,
Sandrine et al., 2013; Mirhaghi et al., 2016). Fatigue, which is known as a symptom
of diabetes may now be a risk factor for diabetes with a relationship shown to extreme
sleepiness, depression and obesity (Gangwisch et al., 2007). Similarly, age has also
been shown to be a risk factor for diabetes (Petit et al., 2001). Obesity was one of the
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individual factors that can potentially be controlled and may be reduced with lifestyle,
organisational and work changes that are predictors of obesity. Obesity was one of the
more important outcomes of this research as it has been related to increased injuries at
work, poor performance and increased morbidity of patients (Finkelstein, 2010; Hegg-
Deloye et al., 2013). It may be that changing the organisation of the work and
improving the work and organistional environment may be more effective than
introducing controversial measures that decrease the income of AOP and increase
organisational costs.
Asthma
AOP reported (27.3%) which was greater than the Australian population.
Asthma has not previously been reported in AOP. Weight gain and higher BMI have
been implicated in asthma incidence and severity, although the mechanisms of which
are not understood (Chipps et al., 2012). Those in the ambulance population who
reported asthma were more likely to have emphysema, hay fever, allergic rhinitis,
bronchitis, sinusitis and other allergic conditions. The regression model developed in
this research confirmed that BMI and hay fever were predictors of asthma in this
respondent population. Even though BMI was found to be not statistically significant,
it was included because it was contextually significant. This raises the question of
whether an ambulance service should exclude employing a person because they have
a history of emphysema, hay fever, allergic rhinitis, bronchitis, sinusitis and other
allergic conditions? It follows, that ambulance services would need to look at all the
risk factors for chronic disease, susceptibility to obesity, long term conditions,
disability and musculoskeletal injuries and could potentially exclude most applicants.
Excluding potential employees based on some of these risk factors is discriminatory
(Bennington & Wein, 2000). For instance, should a person who has Type One Diabetes
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that is well controlled and poses no risk to that person, patients or the ambulance
service be excluded from employment? If such an approach was taken it could amount
to discrimination against not only potential employees but those AOP who are already
employed and develop a chronic disease. This is similar to an AOP who is tested
functionally, physically and psychologically and is employed as an AOP in an
ambulance service, but over time is unable to meet these standards. It may be one of
the reasons that ambulance services do not enforce physical, functional and
psychological health standards for AOP. These standards are implicit in the
employment contract for an AOP, but an ambulance service would not know, if for
instance, a person had PTSD and used private health care providers to assist in coping
with this mental health disorder.
Mental Health
There has been considerable focus on the mental health and resilience of AOP
(Courtney, J., Francis, & Paxton, 2010; Wild et al., 2018). Experiences of mental
health range from feelings of stress through a continuum of anxiety and distress to
overt mental illness. Five-point one percent (5.1%) of respondents to the AHS 2015
reported severe psychological distress in the four weeks before taking the survey. This
does not necessarily translate into mental illness, as the rate of diagnosed mental illness
was 11.3% compared with 13.6% in the Australian population. However, the
ambulance population is a working population, whilst the Australian population
includes those who do not and cannot work. This was contrary to research from
Norway into police and ambulance personnel (Berg, A. et al., 2006; Sterud et al.,
2008a) and in Australia (Petrie et al., 2018) where the opposite was shown. This lower
mental health rate in the ambulance service being researched, may reflect the
psychological support program, which includes education, prevention, counselling and
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a peer support component and focuses on the issues that keep an AOP mentally healthy
and post traumatic growth. Additionally, it has been suggested that the majority of
AOP will grow psychologically from their experiences (Scully, 2011). Using the
Kessler psychological distress scale (K10), only 1.8% of the respondent population
did not report feeling depressed in the four weeks before the AHS was completed by
respondents and of those 78.4% reported feeling depressed ‘most of the time’ to ‘all
of the time’. It is unknown why; nevertheless, it is an important issue, as it contradicts
these research findings of 7.5% with a diagnosed depressive disorder. There could be
a number of reasons for this which could be include a fear of speaking up about a
mental health disorder as this could affect promotion prospects, moving to another
clinical level, or being moved to another position and fear of job insecurity. This lower
rate of diagnosed depressive disorders could be partly a result of psychometric testing
and employing those who will grow as a result of their experiences and a focus by the
ambulance service being studied on post traumatic growth.
These research findings in regards depression are contradicted by (Courtney, J.
et al., 2010; Courtney, James A. et al., 2013) who report that paramedic shift workers
were at high risk of depression. This adds further evidence to what is becoming a more
complex issue with every paragraph. The regression modelling showed that poor self-
reported health, chronic disease and job satisfaction were all predictors of a mental
health diagnosis and psychological distress. It once again points to not only lifestyle
factors but organisational issues impacting on the health of AOP and the need for
programs that consider all modes of health improvement, not just those that improve
mental health.
A regression model was developed for psychological distress and included final
predictor variables of self-reported health, cancer, and job satisfaction which was
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linked to mental health disorders. Job satisfaction, anxiety, poor self-reported health,
cancer and asthma are now linked to a mental health disorder and psychological
distress in AOP. There has been a suggestion that length of service may make an AOP
more susceptible to post traumatic stress disorder and troubling thoughts (Bennett et
al., 2005). This research found little variation in the K10 score and self-reported health
associated with years of service or total shift work experience. This may be a result of
survivor bias where AOP who are unhealthy, leave work earlier and consequently
accrue less exposure compared to their healthier counterparts (Buckley, Keil,
McGrath, & Edwards, 2015). However, years of service were associated with an
increase in mental health diagnoses including depression and PTSD. When the
statistically significant regression model was finalised, it contained three predicator
variables of anxiety, including asthma and psychological distress (K10). Interestingly,
K10 was included as an independent variable in the regression modelling for mental
health disorders, as these two variables were not statistically correlated. These
variables all predict statistically significant increases in mental health disorders
associated with being an AOP. Anxiety and psychological distress have been shown
to be associated with mental health disorders in AOP (Petrie et al., 2018), however
asthma has not. In contrast, this relationship between a mental health disorder and
asthma has been shown to exist in the general population. Relative to adults without
asthma, respondents who had a mental health disorder had an OR = 1.6 95% CI (1.4-
1.8) for depressive disorders and an OR = 1.5 95% CI (1.4-1.7) for anxiety disorders
(Scott, K. M. et al., 2007). This association may be related to secondary issues
associated with mental health disorders such as tobacco smoking, allergic rhinitis and
lack of exercise (Kim, Han, & Kim, 2016). Anxiety and psychological distress have
been shown to have a relationship with AOP’s mental health (Sterud et al., 2006;
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Sterud et al., 2008a; Sterud et al., 2011), which was exacerbated by fatigue and sleep
problems (Courtney, J. et al., 2010).
5.2.3 Factors Influencing the Health of AOP
The literature review identified three broad categories of factors associated with
the health and wellbeing of ambulance operational personnel. These include the
characteristics of individuals, the working environment and the organisational
environment. Age, employment type and gender were included in all regression
modelling as independent variables (as they were potential confounders), and
qualifications and station category were included where there was a significant effect
size or contextual significance.
Individual characteristics
This section is an important component of the research as it gives an indication
that some aspects of work design in the ambulance service can affect caring for one’s
self. For instance, receiving formal rest breaks or the timing of those rest breaks was
not a choice for operational personnel, as operational demands take precedent. Gender,
barriers to exercise, being involved in wellness programs and hours worked all have a
component that was affected by the organisation of the work and subsequently impact
on an employee’s ability to care for one’s self.
Demographic Characteristics
The AHS 2015 confirmed that the demographic characteristics of AOP influence
their health status.
Age
Age was primarily associated with chronic disease in the cross-tabulation
analysis. However, the regression modelling provided a very diverse delineation of
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age, which is shown Table 4.3-33. Age in AOP was a statistically significant predictor
of self-reported health, disability, cancer, diabetes, three of more chronic diseases, job
satisfaction, thoughts of leaving, fatigue and lack of time and energy for exercise in
the respondent population (see Figure 4.1). After the age of 45, there is a decline in the
proportion of female AOP who are employed. It certainly isn’t because of policies that
reduce aged employees as they would be regarded as discriminatory, but the results of
this research do indicate a need for action in this group of AOP in relation to their
health. Similar to Australian firefighters (Walker, Driller, Argus, Cooke, & Rattray,
2014), older AOP have demonstrated poorer health status. These changes need to be
considered in terms of employment type and work ability changes. Health promotion,
fitness, dietary, work type, rostering arrangements, and psychological support
programs will need to be considered in terms of improving the health of this group.
The regression modelling showed age as a predictor variable for multiple dependent
variables, some of which were positive in nature. For instance, as AOP aged job
satisfaction improved and thoughts of leaving declined.
Gender
In considering gender, the literature has described that females may be more
susceptible to musculoskeletal injuries (Maguire, Brian J. & Smith, 2013). The AHS
2015 found AOP to be on average younger than the general population and
increasingly female. The ratio of males to females varied considerably within the
different employment groups: EMDs (29:71), Advanced Care Paramedics (62:38),
Critical Care Paramedics (83:17) and supervisor/managers (81:19). This may reflect
recruitment trends or lifestyle choices or lower rates of female participation in the
ambulance workforce previous to this research. In addition, the permanent part time
female workforce was three times that of their male counterparts and they were more
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likely to rate their health as poor or fair and be overweight than their male colleagues.
There were several gender based statistically significant relationships discovered in
the cross-tabulation analysis and these were included in the regression modelling.
However, gender was found to be a predictor of only one dependent variable. Males
were found to have a decreased risk of participating in a formal rest break, which may
be related to the ratio of males to females in the supervisor/management group who
were also found to be a predictor of not having a rest break. Whilst this research did
not find causes, the argument that males were less likely than females to have a regular
rest break seems to be weak. There was no difference in getting formal rest breaks in
the younger age groups between females and males. The over 45-year age group was
slightly lower in reporting not getting regular rest breaks and may relate to this group
of males having worked in the ambulance service for longer and having different
generational work-life expectations. However, generally the distribution of rest breaks
was evenly distributed between age groups except that the proportion of those < 45
years of age was nearly twice that of those ≥ 45 years of age.
Qualifications of AOP
This is the first known research that seeks to relate health status to qualifications
of ambulance personnel. The AHS 2015 did not distinguish between graduate and non-
graduate paramedics and it was difficult to do so by looking at those who have an
undergraduate degree, as many non-graduate paramedics have completed a degree
after entering the service. However, those less than 34 years of age were more likely
to be graduate paramedics and there was no evidence to indicate that those in the 15-
34 year age group had worse self-reported health, chronic disease or stress. There was
only one statistically significant relationship found in the regression modelling for
education/qualifications. Those who had more than a year 10 high school education
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had an increased risk of a poor job satisfaction score. This is a noteworthy result, as
there was evidence to indicate that nurses with higher education levels have less
organisational commitment (Alexander, Weiss, Braude, Ernst, & Fullerton-Gleason,
2009) and job satisfaction (Lu et al., 2012). In addition, the AHS 2015 found that those
with tertiary qualifications were the group most likely to consider leaving the
ambulance service. There is a need to further explore the factors associated with more
highly educated paramedics in relation to job satisfaction and intent to leave as the
evidence is contradictory.
Service Location
There was some inconsistency in the literature about the impact of service
location (rural vs. urban) on health status of paramedics. Courtney, James A. et al.
(2013) concluded the health status of rural paramedics was the same as that of
Metropolitan paramedics. Pyper and Paterson (2016) suggest normal levels of stress
in rural paramedics and that this may have been mitigated by working with known
people in the rural communities. The AHS 2015 results add to the contradictory nature
of the evidence. Those respondents who worked in rural stations were more likely to
report severe psychological stress than those who worked in urban stations. This is a
very important point, as it may mean that those who work in rural stations have less
psychosocial support and may need increased psychological interventions and physical
support than their urban colleagues. Isolation, limited workload, deskilling and limited
social opportunities may all contribute (Terry, Lê, Nguyen, & Hoang, 2015;
Humphreys, Wakerman, Pashen, & Buykx, 2017). However, there was no difference
in station category for mild psychological stress or for those who were well. Service
location was determined by using the ambulance service station categorisation system.
(e.g. a category five station is a busy station situated in an urban environment and
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provides multiple ambulance vehicles 24 hours per day with two paramedics on each
car). Regression analysis provided a dissimilar picture and determined only one
variable that was statistically significant in relation to service location. Those who
worked in category five stations had an increased risk of developing a disability. This
was intuitively sensible, as fatigue has previously been related to disability in
Australian paramedics (Paterson, Sofianopoulos, & Williams, 2014) and the AHS
2015 found fatigue to be higher in category five stations, which are known to be busier.
The AHS 2015 also found that as paramedics’ age, they tend to move away from
category five stations. This suggests the need for a system that considers workload
amongst paramedics in terms of reducing the burden of disability and fatigue that was
shouldered by those who work in busier stations and the impact of working with and
knowing their own community
Diet
Diet impacts on health status and is known to be disturbed by shift work
(Atkinson et al., 2008). In the AHS 2015, those who had one serve of fruit or less per
day were more likely to have moderate to severe psychological distress and were in
turn more likely to have CVD, diabetes, asthma, or a disability compared to those
respondents who consume more than one serve of fruit per day. This was consistent
with a study by Regehr, C., Goldberg, Glancy, et al. (2002). Diet was determined by
asking respondents about the number of serves of vegetables and fruit they consumed
in a day and was included in many of the regression models. However, the only
statistically significant predictor for diet was found to be serves of vegetables in
relation to lack of energy in relation to barriers to exercise. Eating quickly and eating
until full, has been reported in the literature as contributing to obesity (Maruyama et
al., 2008). One aspect of being a paramedic that fosters eating quickly is the unknown
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nature of when and where the next case will arise and the lack of scheduled rest breaks.
In all categories of employment, those who do not get regular rest breaks tended to be
overweight. Female EMDs were more likely to be overweight compared to their male
counterparts. Overall, supervisor/managers were more likely to be overweight than
EMDs and paramedics (this was the group of respondents that has a decreased risk of
having a rest break). Whilst there are many ways in which this may be improved,
scheduled and formal rest breaks and constant reinforcement of the importance of diet
through education and health promotion that may change the choices AOP make in
relation to diet.
Obesity
Obesity has been associated with chronic disease, disability, fatigue and sleep
problems (Kopelman, 2007) and was one of the major biomedical risk factors linked
to the onset of chronic disease. Obesity was measured in the AHS 2015 using BMI and
waist/hip ratio and was included in many of the regression models as an independent
variable. Obesity was found to be a statistically significant predictor of self-reported
health, asthma, diabetes, arthritis, three or more chronic diseases and sleep hours.
Respondents to the AHS 2015 who were overweight, reported chronic disease, CVD,
back problems and high levels of fatigue. They also reported lower good quality sleep
on rostered days off. There was also some suggestion that psychological stress
commonly associated with ambulance work may be associated with obesity (Svedin,
Norrlander, & Fläckman, 2012). What is not known was whether this stress was a
causative factor in obesity or vice versa. Overweight AOP were more likely to report
negatively in relation to feeling positive at work, having good friends at work, feeling
recognised and appreciated, respecting the work of peers and their supervisor caring
about them as a person. Overweight respondents were more likely to report the job
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they were in was depressing and have thoughts of leaving the ambulance service.
Obesity has been shown to be related to paramedics (Hegg-Deloye, Sandrine et al.,
2013) and EMDs (Lilly et al., 2016) and as a risk factor for CVD (Hegg-Deloye, S. et
al., 2015) and it was thought that this was related to PTSD, occupational stress, alcohol
abuse and depression.
Exercise
Courtney, J. et al. (2010) suggested paramedics did less exercise than the general
community and had greater levels of fatigue, anxiety, stress and poor sleep. Low self-
reported health of paramedics (Sterud et al., 2006; Suzuki, Yoshioka, Ito, & Naito,
2016) and nurses (Malinauskiene et al., 2011) was related to low physical activity.
Those in the AHS 2015 who reported exercising more, had a decreased risk of poor
health, a cancer diagnosis, asthma, diabetes, CVD, a disability and back problems.
Sitting hours were not correlated with exercise hours and were therefore considered
separately in this discussion.
This added to the contradictory evidence as to whether physical fitness was
protective towards musculoskeletal injuries in paramedics (Broniecki, M. et al. (2010);
Jenkins et al. (2016). There is generalised support for workplace physical activity
programs, but the evidence as to their effectiveness is limited or inconclusive (Proper
et al., 2003). Additionally, Fennell, Gerhart, Seo, Hauge, and Glickman (2016)
reported no improvement in physical activity or health related outcomes with
incentive-based exercise programs. In contrast, the 45 and Up Study of Australian
adults (Rosenkranz, Duncan, Rosenkranz, & Kolt, 2013) indicated that increased
physical activity and lowered sitting time were associated with excellent health and
quality of life. Marques, Santos, Martins, Matos, and Valeiro (2018) reported that
physical activity was associated with lower risk of chronic disease and this was also
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reflected in the AHS 2015 data analysis. Intuitively, lack of time may be related to
lower exercise hours. The regression modelling indicated that lower exercise hours
could predict lack of time and energy as a barrier to exercise. Other predictors for both
lack of time and energy as a barrier to exercise include age, diet and thoughts of
leaving. For lack of energy, predictors not already mentioned include alcohol
consumption, rest breaks and being an EMD, whilst for lack of time the remaining
predictor was psychological distress. There needs to be more research on the physical
work demands and whether this has an incidental exercise component and if AOP are
fit for the task. This one point raises a range of social, industrial, lifestyle and work
related issues that are complex and needy of further research.
In addition, the effect of exercise on the timing and content of food intake and
shift work was not known. However, exercise in shift workers has been shown to have
some favourable impacts on fatigue (Atkinson et al., 2008) and workplace based
physical activity programs may provide some improvement whilst further studies are
completed. The AHS 2015 demonstrated no statistically significant association
between low levels of exercise and chronic disease. This was a disappointing result as
there was ample evidence in the literature to indicate that physical activity has a
protective affect with non-communicable disease (Lee et al., 2012). However, caution
should be exercised when considering this result of the AHS 2015, as only 223
respondents answered all question that allowed an accurate summation of exercise
hours, as the questions required respondents to think clearly about their exercise over
the last two weeks in comparison to the Australian health survey where exercise was
judged on pedometer readings which included formal and incidental. In addition, it is
known that there is a social desirability bias associated with self-reported exercise
(Brenner & DeLamater, 2014; Brenner & DeLamater, 2016). Exercise is clearly an
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important issue in the health of an individual, and ambulance services need to, in the
first instance, action initiatives that reduce the factors known to be associated with lack
of time and energy to exercise. That is, targeting the factors that are known to be
associated with physical activity (e.g. age, sex, health status, self-efficacy and
motivation) (Bauman et al., 2012) may be a more effective method of assisting AOP
to improve health than providing facilities and programs of exercise.
Sitting
In relation to sitting, those who sit for longer hours (sedentary behaviour) are
known to be linked to increasing obesity, Type 2 Diabetes and CVD (Kolt et al., 2017).
The average sitting time of the respondents was 11.5 hours on a working day, with
supervisor/managers and paramedics more likely to sit from 10-14 hours on a working
day. EMDs sat for greater than 14 hours on a working day (this was the total sitting
time in a working day, at work and in other activities such as sitting whilst driving,
eating and watching television which may have been at home). This was an important
finding, as Banes (2014) described long periods of inactivity interspersed with high
physical demands in firefighters leading to high rates of obesity and CVD.
The AHS 2015 showed respondents with increased sitting hours had an
association with CVD, obesity and diabetes in the cross-tabulation analysis. The
regression modelling provided further insight into the effects of increased sitting hours
which were a statistically significant predictor of long term conditions such as hay
fever, sinusitis, allergies and bronchitis. The predictors of sitting hours included being
an EMD or supervisor/manager, younger age group, gender, station category, alcohol
consumption and weight. Increased sitting time was a statistically significant predictor
of increased chances of having a rest break. This poses a dilemma as those with the
greatest sitting hours (EMDs) have a rest break built into their roster, but
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supervisor/managers who had the second highest sitting hours were the group who had
the highest risk of not getting regular rest breaks. It is clear that having a regular rest
break is of critically significance for the health of AOP and ambulance services need
to consider developing policies that ensure formal rest breaks are available to all AOP.
This should be in the context of what a regular rest break is known to be rather than
what the ambulance service or policy makers think it should be. There is no room in
this issue for an individual interpretation of what is a regular rest break.
Sleep
Kukowski et al. (2016) described sleep as having a mitigating effect on stress in
paramedics (Manoharan & Jothipriya, 2016). Caution should be taken in interpreting
these results as there have been many changes, one of which was a move from mainly
10 hours shifts towards 12-hour shifts in the ensuing 13 years. However, this needs to
be framed contextually. The ambulance environment is unpredictable and working
more hours than a designated shift length is a common issue. In this example, 13 years
ago, paramedics especially, may have worked up to 12 hours on a shift (base shift of
10 hours) and now can potentially work up to 14 hours on a shift (base shift of 12
hours). A comparison of sleep hours from 2003 and 2015 is provided in Figure 4.5 and
has significant safety implications such as increased rates of AOP injury, medical
errors and safety compromising behaviour.
Sleep Hours
The AHS 2015 showed a positive association between sleep hours and job
satisfaction and an inverse association between sleep hours and work-related health
culture, personal and family stressors and anxiety. A positive association was shown
between sleep and fatigue in the AHS 2015. In summary, sleep ≥ 7 hours per night on
rostered days off predicted decreased stress, family stressors and anxiety and an
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improved work-related health culture and job satisfaction. The respondents who
indicated improved health status with increased sleep (> 7 hours on rostered days off
also showed a reduced likelihood of a mental health disorder, a lower K10 score and
chronic disease.
Sleep quality
Poor sleep quality in paramedics has been linked to health, occupational duties
and personal relationships and associated factors such as CVD, lifestyle behaviours,
job conditions and psychopathology (Hegg-Deloye, Sandrine et al., 2013). Courtney,
James A. et al. (2013) indicated that the rural cohort of paramedics was more likely to
have a poorer sleep quality. The explanation may lie in the on-call component of some
rural paramedics. The AHS 2015 showed that paramedics in category one stations
were more likely to sleep less than six hours per day on rostered days off. This is an
incongruent result, as category one stations are likely to be the least busy work areas.
Category one and four station respondents report poor sleep quality as did
Supervisor/Managers and EMDs. Regression modelling provided further evidence that
sleep has a protective effect. Fair sleep quality was shown to reduce the risk of
developing a long-term condition, but not so with CVD. Respondents who reported
fair and poor sleep quality were shown to have a slightly increased risk of developing
CVD. Increased shift work years and BMI predicted an increased risk of sleeping ≤ 7
hours and good and excellent self-reported health showed a decreased risk of sleeping
≥ 7 hours on rostered days off. Whilst ambulance services spend time educating
employees of the importance of sleep and how to manage sleep, shift work and stress,
especially for shift workers, up to 31% of ambulance employees may have shift work
disorder. This is a clinically recognised condition that may make a shift working AOP
incompatible with shift work (Wright et al., 2013). Fatigue and poor sleep have
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enormous safety implications for individual AOP, patients, the community and the
ambulance services. The rest break issues are significant and are less than the
prescribed breaks from driving in the transport industry with far greater safety
consequences (NHVR, 2019). There are no known education strategies that are
delivered to AOP, nor is the condition widely known amongst this group of employees.
It is imperative that consideration be given to testing for shift work disorder in AOP
and that strategies be developed to assist this group of workers with reduced exposure,
as not only can it affect worker wellbeing but has the potential to increase fatigue and
decrease performance and impact on patient morbidity and mortality (Brachet, David,
& Drechsler, 2012) .
Alcohol
Despite the latest evidence in relation to there being no safe limit of alcohol
consumption in relation to the risk of cancer (Connor, 2017), the AHS 2015 did not
find any link, either through the cross-tabulation or regression analysis to cancer. Six
percent of respondents drank alcohol daily compared to 8% in the Australian
population (NHMRC, 2009). Respondents had a mean weekly consumption of alcohol
of one drink per day and 8.3% of respondents drank at a high-risk level compared to
18.2% in the Australian population (AIHW, 2016c). This figure could be higher as
there is some evidence indicating alcohol use may be underreported by as much as
22% (Livingston & Callinan, 2015). Managers drink more often than other
employment types and EMDs drink less than other employment types. However,
regression modelling showed that the amount of alcohol consumed in one week was a
predictor of reporting lack of time as a barrier to exercise. Consuming five or more
drinks at least once per week was also shown to be a predictor of an increased risk of
being fatigued. Whilst generally, alcohol consumption in AOP’s is lower than the
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Australian population, it is likely that there are some AOP reporting to work with a
blood alcohol concentration higher than zero, which is the level required by the
ambulance service for AOP. This is especially important; given 8.3% of AOP are high
risk drinkers. Whilst there is no known regular testing of blood alcohol content in the
ambulance service, this is done in other public driving related services such as rail,
tram and bus. If it were to be introduced then testing for fatigue should also be
considered given the relationship between fatigue and simulated blood alcohol levels
(Williamson, Feyer, Friswell, & Finlay-Brown, 2000) There is a need to develop a
reasonable approach to this issue to protect patients and AOP, especially in the high-
risk activity of driving ambulance vehicles in emergencies.
Tobacco smoking
Tobacco Smoking has been reported in the literature in relation to paramedics in
the U.S. at 12% (Hegg-Deloye, S. et al., 2015) and 19% (Barrett et al., 2014). Tobacco
smoking rates for AHS 2015 respondents were 8.9%. Those respondents who smoked
tobacco were more likely to report poor health, severe psychological distress, sit for
greater than 14 hours per day, have had or currently have cancer, CVD, arthritis,
diabetes, hay fever, bronchitis, emphysema, overweightness, hypertension or two
chronic diseases. However, the regression modelling showed that tobacco smoking
was not a predictor for any of the dependent variables in the health status, chronic
disease, caring for self, organisational symptomology or risk factor categories.
Respondents who smoked tobacco were more likely to sleep less than six hours per
day on rostered days off and report poor sleep. Tobacco smoking rates were highest in
the 35-44 age group, and of those who smoked tobacco, EMDs smoked the most
(18.3%). There is some evidence that tobacco smoking can improve immediate
performance (Myers, 2010), yet has detrimental health affects if continued over time.
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There is a need for focused anti-smoking campaigns in the ambulance service,
especially for EMDs who have tobacco smoking rates equivalent to the Australian
population.
5.2.4 The Working Environment
AOP function in a difficult and unpredictable environment. They work long
hours and are shift workers and may be exposed to infectious diseases, emotional
stress, fatigue, occupational violence, injury and vehicle crashes. They are facing
increased workload and high work demands which have been associated with
increased anxiety and physical illness (Aasa, Brulin, et al., 2005). The AHS 2015
described respondents who worked at the busier stations, EMDs and supervisor
/managers having moderate psychological distress and increased rates of disability.
There may be other factors that contribute to this issue, such as occupational violence,
exposure to distressing life events, shift work, a high job demand and low control
environment (Cropley, Steptoe, & Joekes, 1999), lack of exposure to critical incidents
and the high expectations of graduate paramedics especially, not being met.
Occupational violence
Up to 90% of ambulance personnel have reported violence, both physical and
verbal, and its effects have been known to effect social support, job satisfaction,
psychological well-being and lead to increased levels of anxiety (Brough, 2005b).
Workplace violence was not assessed in the AHS 2015, however evidence from the
literature (Maguire, Brian J et al.(a), 2018, Maguire et al (b)., 2018) and the ambulance
service where this research was undertaken (QAS, 2016a), indicates that occupational
violence is increasing. The need for high quality national and international research in
this area is increasing and should be conducted with universities that have high quality
researchers, an interest in occupational violence and strong links with ambulance
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services. The research needs to be focused on the causes, prevention, protection and
solutions to the issue of occupational violence (Maguire, Brian J et al., 2018). It needs
to build on previous research, not just indicate that further research is needed – that is
obvious. One way of focusing this research would be to create a consortium of
universities that have an investment in paramedicine and the state ambulance services
in Australia to form a Center for the Prevention of Occupational Violence in
Emergency Services.
Formal rest breaks
Irregular meal timings have been implicated in weight gain (Jakubowicz et al.,
2012) and an increased likelihood of sustaining a musculoskeletal injury in both
Australian (Broniecki, Monica et al., 2012) and U.S. (Dropkin et al., 2015) ambulance
services. The AHS 2015 found irregular rest breaks were associated with poor health,
back problems, psychological distress, bodily pain, thoughts of leaving and increased
sitting hours. Fatigue and subsequent risk of injury has also been implicated in
irregular rest breaks (Weaver et al., 2015a). The AHS 2015 showed regular rest breaks
were associated with decreased fatigue and barriers to exercise, increased job
satisfaction, performance, sleep quality and a more positive workplace. Not having
regular rest breaks and being an EMD was shown by regression analysis as a predictor
of lack of time to exercise. An insight into the different employment groups and why
they do not or cannot take regular rest breaks is provided in Table 4.2-25.
. Thirty nine percent of supervisor/managers and 40% of paramedics indicated
they do not take regular rest breaks because of work pressure. A slightly smaller
proportion indicated they do not take regular rest breaks, because they eat on the run.
A model of predictors of rest breaks was developed using binary logistic
regression and indicated that males, supervisor managers, paramedics, respondents
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who had frequent to constant fatigue showed a decreased risk of having a regular break.
Counter intuitively, those who showed an increase in sitting time (primarily EMDs)
had an increased risk of having a regular break. In 2000 the Australian Council of
Trade Unions published a paper on health and safety guidelines for shift work and
extended working hours (ACTU, 2000). One of the measures that was recommended
was formal breaks during shifts.
The true meaning of a break is where a worker cannot work or have to worry
about going back to work and may include a napping strategy (Garbarino et al., 2004;
Brooks, A. & Lack, 2006; Thorpy, 2010). Whilst there are different strategies, lengths
and conditions governing rest breaks throughout the world, Work Smart U.K. (2017)
has a succinct definition: “A rest break is an uninterrupted period of at least 20 minutes
during which work should not be undertaken. A period of downtime when you are
allowed to stop working but must stay in contact with your employer is not a rest break,
even if it turns out at the end of the break that it was uninterrupted”. Eighteen years
after this paper was published, apart from EMDs who have regular rest breaks built
into their shift, this issue has not been resolved in the ambulance service where the
research took place. It should be noted that even though EMDs have regular rest breaks
built into their shift, they have reported through the AHS 2015 that they sometimes do
not get a regular rest break. Both paramedics and EMDs work shift work schedules
and if regular breaks can be built into one shift work schedule for EMDs, they can be
built into a shift work schedule for paramedics. Both paramedics and
supervisor/managers have the same two top reasons for not having breaks: pressure to
get work done and eating on the run There was a positive correlation between these
two variables, with pressure to get work done associated with eating on the run. It is
logical to suggest that reducing pressure to get work done, which is not necessarily
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urgent clinical work, will reduce the temptation to eat on the run. Therefore, an
organisation that insists and schedule breaks for all AOP, is critical in improving the
health status of that group of workers (Chastin, Egerton, Leask, & Stamatakis, 2015).
Shift work
There was a difference between shift work disorder (SWD) and the normal
disruptions to work-life that shift work entails. There was some evidence that shift
work may be a causative agent in reported levels of distress, fatigue and health related
conditions in ambulance personnel (Sofianopoulos et al., 2012; Patterson et al., 2015).
One Australian ambulance study used shift work as the dependant variable and
reported links to fatigue, poor sleep quality and performance at work (Archer, 2012).
The AHS 2015 results for current shift workers report psychological stress and fatigue
and that respondents were less likely to report their performance as high against a non-
shift worker. Sleep hours and quality on rostered days off did not appear to be affected
by shift work.
Shift work has been reported to be associated with overweightness in ambulance
personnel (Patterson, Suffoletto, et al., 2010) and whilst the mechanisms were not
known, it was assumed that it relates to diet, sedentary behaviour, fatigue, decreased
physical activity and anxiety. In the AHS 2015, male and female overweightness
increased with increasing years of shift work and regression modelling showed a
statistically significant relationship between increasing years of shift work and
increased chances of cancer. The ambulance service operates a 24/24 shift work
environment, and this will not change. What can change however is the construction
of rosters that follow circadian principles and variations in rosters that allow multiple
choices that may best suit work-balance options for multiple AOP (Bird, J., 2004;
Abendroth & Dulk, 2011). To do this will need an assurance that remuneration will
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not decline and one way of doing this would be to provide a composite rate of
remuneration so that moves from one roster to another will not result in a loss of pay.
Whilst a more complex system to manage and potentially more costly to maintain,
improvements in sleep and reduction in fatigue would benefit AOP, patients and
organisational performance.
Performance
Chronic health conditions have been related to reduction in performance through
work impairment (Collins et al., 2005). In this research, participants who reported high
psychological distress, a disability, bodily pain, poor self-reported health, asthma, a
cancer diagnosis, CVD or diabetes were all less likely to report their performance as
high. Those with back problems indicated their overall performance was high for only
35% of the time. Most respondents who were overweight were less likely to report
their performance as high, and those who exercised more thought their performance
was higher most of the time. These are important findings for any ambulance service
that seeks efficiencies in their operations. It appears, that if the health issues of AOP
are resolved, not only are personnel healthier, fatigue and anxiety decrease, job
satisfaction and sleep improve, but ‘at work performance’ will improve, which may
translate to decreased morbidity and mortality for patients. There was no relationship
found between performance and sleep even though it was documented in the literature
(Patterson, Suffoletto, et al., 2010). Regular rest breaks were also linked to
performance, with respondents who did not get regular rest breaks reporting they were
less likely to regard their performance as high and more likely to regard their
performance as average. In reality, even though these solutions may be complex
operational issues to resolve, they are simple measures that could have a dramatic
effect for AOP and ambulance services.
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Fatigue
Fatigue is a known risk factor for accidents and has been related to bodily pain,
low motivation, sleepiness and many factors that make an individual susceptible to
poor decision making and slowed reflexes (Aritake et al., 2015). It is known to be
affected by poor sleep, stress and shift length and can manifest itself as depression
(Archer, 2012), and affect the safety of ambulance personnel (Patterson, Weaver,
Frank, et al., 2012). Long shift lengths were implicated with fatigue but can have
positive and negative effects (Knauth, 2007). Respondents to the AHS 2015 who
worked greater than 181 hours per month were more likely to report fatigue and
describe that fatigue as high. Respondents with constant or high fatigue were more
likely to describe their health as poor and report not getting regular rest breaks.
Fatigued respondents were more likely to have poor job satisfaction and to consider
the work-related health culture in a negative sense than those respondents who were
not fatigued. Performance can be affected by fatigue (Berg, T. I. J. v. d., Elders, Zwart,
& Burdorf, 2009). Respondents, who reported constant fatigue were less likely to
report their performance as high, and more likely to rate their overall performance as
average. Those who experienced increased fatigue when working involuntary
overtime were more likely to do less work than most other workers in the job. Given
the above, ambulance services cannot afford to continue operations that are proven to
contribute to the development of fatigue that may lead to increased incidents and
hazards that cause injuries, poor operational performance and significant risk to those
in need of ambulance services.
There was some evidence that physical exercise can reduce fatigue (Aasa, U.,
Angquist, & Barnekow-Bergkvist, 2008). Those who exercised for less than 10 hours
per fortnight were more likely to report fatigue as did those who sit for 10-14 hours on
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a work day. The respondents reported two barriers to exercise which were ‘no time’
and ‘no energy’. This section describes the fatigue quandary that AOP confront and is
shown in Figure 5-1.
Figure 5-1. The AOP Fatigue Quandary.
Whilst AOP will make personal choices about what they eat, if and for how long
they exercise, drink and smoke, there were a range of factors that will influence these
choices. A regression model showed that job satisfaction, age, alcohol and disability were
statistically significant predictors of fatigue. Poor job satisfaction predicted high fatigue
and high job satisfactions scores predicted less fatigue. Fatigue increased when alcohol
was consumed at a rate of five drinks in one session at least once per week, and with age
and disability. Therefore, the fatigue quandary was influenced by more than barriers to
exercise and is shown in Figure 5-2.
Fat
igue
Fatig
ue
↑sitting & work hour exposure ↓exercise
↓sitting, ↑exercise
No energy No time
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Figure 5-2. The Modified AOP Fatigue Quandary.
Additionally, the work of AOP is one of high demand and low control (Regehr,
C., LeBlanc, Jelley, Barath, & Daciuk, 2007). Where they work and the type of work
they do is not a choice that they are able to influence. Other factors such as income,
education, conditions of employment, influence and social support can enhance or
undermine the health of individuals and the work environment. Both job satisfaction
and work-related health culture climate can in part, influence the social aspects of the
work environment. Van der Ploeg and Kleber (2003) hypothesised that lack of social
support at work and poor communication were the main risk factors associated with
health symptoms. It was hypothesised that workplace based social support was a
perceptive concept and includes the actuality that a person was cared for, had
assistance from other work mates and supervisor/managers and most importantly, the
organisation that employs personnel was regarded as a supportive social network. This
research provides evidence to support this hypothesis with job satisfaction being
predicted by fatigue, anxiety, job type, family stressors, age, education and self-
reported health. The work-related health culture was predicted by the thoughts of
leaving, psychological distress and having a disability. The key that links these two
elements together was thoughts of leaving, which was predicted by age, psychological
Fat
igue
Fat
igue
↑sitting & work hour exposure, ↓exercise ↑alcohol, age & disability, ↓ job satisfaction
No energy No time
↓sitting, ↑exercise
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distress, long term conditions and job satisfaction. Critical to this is how organisations
regard their purpose, which in the case of ambulance was to care for the community.
It is suggested that it should change to one of caring for those who care for the
community to create positive workplace culture impacts such as improving job
satisfaction and organisational performance and decreasing thoughts of leaving
(Braithwaite, Herkes, Ludlow, Testa, & Lamprell, 2017).
Work related health culture
Lu et al. (2012) identified that nurses with tertiary education had lower rates of
job satisfaction, which may be related to the increased expectations of nurses not being
met. Sellgren et al. (2008) showed that work unit climate was strongly associated with
job satisfaction. Respondents to the AHS 2015 with an undergraduate degree, were
less likely to report a positive work-related health culture than those with a diploma or
lower qualification. There was an association between poor work-related health
culture and obesity, arthritis, cancer, CVD, blood pressure, alcohol consumption and
diet in the cross-tabulation analysis. A model of work-related health culture was
developed using logistic regression analysis and showed that thoughts of leaving, a
high psychological distress score and a disability were predictors of a poor work-
related health culture. A high psychological distress score was in turn predicted by
a poor job satisfaction score, poor self-reported health and a cancer diagnosis, whereas
self-reported health could be predicted by diabetes, age and obesity.
Thoughts of leaving
Intent to leave or even the consideration of intent to leave (in the AHS 2015, this
was described as thoughts of leaving) can be seen as a reflection of job satisfaction
(Blau, Chapman, Gibson, & Bentley, 2011) and “job embeddedness” which was a
summation of three elements: 1) perceptions of their fit with a job, the organisation
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Discussion
and the community, 2) links to other employees, teams and groups and 3) what the
employee would say they would have to sacrifice if they left their job (Mitchell,
Holtom, Lee, Sablynski, & Erez, 2001). Thoughts of leaving were predicted by job
satisfaction, age, a high psychological distress score, a cancer diagnosis and long-term
conditions. There was interconnectedness between these variables that suggest a link
between the health of AOP and organisational symptomology, especially job
satisfaction and work-related health culture. Therefore, improving job satisfaction and
work-related health culture has the potential to improve the health of AOP.
Job satisfaction
Job satisfaction was found to be linked to personal and family stressors including
perception of a negative work-related health culture, and predicted by individual
characteristics including fatigue, anxiety and family stressors. These are significant
findings and job satisfaction was at the centre of these connections. It is reasonable to
suggest that if job satisfaction were to improve there would be a concomitant
improvement in work-related health culture and sleep, a decrease in thoughts of
leaving, rates of chronic disease, fatigue and anxiety. However, this is a difficult
association to predict because of the lack of knowledge of how happy an AOP is with
their private life. For instance, if an AOP was happy at home and individually, would
they feel happier with work or if work was better would they be happier at home, feel
less anxious and sleep better.
Self-reported health
The AHS 2015 showed that AOPs rates of mental health diagnoses and
psychological distress were lower than the general population. However, these results
should be viewed with caution, as the indications from the literature are increasingly
showing higher rates of mental health diagnoses and psychological distress in
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ambulance personnel in Australia (Varker et al., 2017; Petrie et al., 2018). In contrast,
Scully (2011) described post-traumatic growth in paramedics as result of their
experiences. These results match those from the ambulance service’s EAP and there
could be a number of reasons for this. One explanation for this lower rate of mental
health disorders in these paramedics was that the ambulance service involved in this
research has an Employee Assistance Program that includes prevention, education,
peer supporters and a range of mental health professionals state-wide that can provide
24-hour assistance to AOP and whilst available to all AOP, it has its origins in
supporting paramedics. It focuses on staying mentally healthy and post traumatic
growth. Additionally, there was no evidence in the AHS 2015 to support lower rates
of mental health disorders with EMDs or supervisor/managers. EMDs were more
likely to report severe to moderate psychological distress than supervisor/managers
and paramedics, and supervisor/managers were more likely to report a mental health
disorder than EMDs. This may reflect increased general, organisational and ambulance
specific stressors in those ambulance occupations that were little discussed in the
literature e.g. EMDs and manager/supervisors. Interestingly, regression modelling
showed that being a supervisor/manger was a predictor of poor job satisfaction, not
having regular rest breaks and working longer hours. A paramedic was a predictor of
not having regular rest breaks and an EMD was a predictor of lack of time to exercise.
This shows specific stressors were related to different employment types within an
ambulance service and adds emphasis to the need for individualised health
improvement programs that take into account the needs of different employment types.
The associations identified in the AHS 2015 between poor self-reported health
and job satisfaction support previous findings into this relationship (Faragher et al.,
2005). Job satisfaction has been identified as a significant component of worker well-
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Discussion
being with organisational support acknowledged as a major predictor of this well-
being. Other predictors of worker well-being in a U.K. study of ambulance officers
were work engagement (focused, dedicated and energetic) and psychological stress
(Soh et al., 2016). Respondents in the AHS 2015 who identified a negative job
satisfaction score were also more likely to report severe to moderate psychological
stress, poor self-reported health, back problems or disabilities.
Organisational environment
The organisational and work environment in ambulance services in Australia
(Courtney, James A. et al., 2013), New Zealand (Brough, 2005a) and the United
Kingdom (Mahony, 2001) have been shown to affect the health of paramedics. EMDs
in Australia (Shakespeare-Finch et al., 2015) have been shown to have high rates of
post-traumatic stress disorder and in the U.S., this has been shown to be related to
secondary issues such as tobacco smoking, alcohol consumption and obesity (Pierce
& Lilly, 2012). The AHS 2015 showed job satisfaction, work-related health culture,
thoughts of leaving and having a regular rest break affect the health or were affected
by the health of AOP. More specifically, these four symptomologies affected health
status, chronic disease and caring for one’s self and were exacerbated by fatigue,
barriers to exercise, sleep and in the case of supervisor/managers, hours worked.
Organisational communication is a component of job satisfaction and it has
been reported by previous researchers that 23.4% of job satisfaction was described by
communication practices within an ambulance organisation (Jules & Bourque, 2009).
Those respondents to the AHS 2015 who felt they were not informed were more likely
to consider job satisfaction in a negative sense.
Furthermore, it has been suggested that supervisors should recognise the
importance of their role in providing socioemotional support to employees in an
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attempt at reducing the impact of organisational stressors on paramedics (Arial et al.,
2011). Respondents with poor self-reported health, a mental health disorder and
psychological distress were less likely to agree their supervisor supports them and trust
the leadership team. Van der Ploeg and Kleber (2003) identified supervisor support as
one of the risk factors in predicting fatigue, PTSD and burnout at work. Importantly,
the AHS 2015 identified 42.8% of respondents reported their supervisor does not care
about them as a person, 35% reported their supervisor does not review their
performance, 68% identified their supervisor does not support a healthier lifestyle and
65% reported they do not trust the leadership team. These are critical elements in
improving the health of AOP and in providing further education to
supervisor/managers. In addition, leader support has been identified as affecting
psychological well-being, job satisfaction, work unit climate and work-life balance
(Sellgren et al., 2008; Ghorbanian et al., 2012; Mattock, 2015), and was assessed in
the AHS 2015 using the above four variables. Supervisor fitness amongst others, has
been identified as one of the factors that may influence the health of firefighters
(Dobson et al., 2013) and in the AHS 2015 supervisor/managers reported twice the
rate of poor health than paramedics which was indicative of lower rates of exercise,
increased sedentary behaviour, higher rates of obesity and longer working hours.
Intuitively, this group of workers may have been in an ambulance service longer, be
older and have a greater number of shift work years, even though they may not
currently be shift workers, which may explain the higher rates of chronic disease.
Interestingly, supervisor/managers were the one group who were most likely to
not know what was expected of them at work when compared to paramedics and
EMDs. There may be a link here to what paramedics describe as a lack of emotional
support and the health of their supervisors who may be too busy coping with a high
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workload, poor physical and psychological health and trying to understand their role.
They may see emotional support as taking on more aspects to an already damaged
psyche. This raises the spectre of inconsistent application and education of
supervisor/managers in relation to legislation, regulation, policy and clinical practice
guidelines or alternatively it points to supervisor/managers being so busy and having
constant demands on their time, that they were not able to pay due attention to any one
issue.
Supervisor/managers are assumed to be relaying information and caring for other
AOP as they have been trained to do. However, each supervisor has their own
perspective on policy, different clinical backgrounds, level of training and
interpretations on key performance indicators as well as desire for promotion.
However, there is a positive side to this aspect of interpretation by
supervisor/managers that allows for individual circumstances with AOP. Nevertheless,
time may be the critical issue where supervisor/managers are the group most likely to
not know what is expected of them. Pressure to get work done was also explored when
discussing irregular breaks and may also relate to AOP perspective of not being cared
for. This may lead to a loss of perspective of what their role was in their environment.
Further, work-related health culture was found to be negative overall, more so for
paramedics and EMDs and generally positive for supervisor/managers. This integrates
with theme one and three from the thematic analysis where it has been suggested that
there was lack of understanding of how the work environment impacts on AOP and
that there was a different perspective between supervisor/managers, paramedics and
EMDs. How leaders regarded their health can have a flow on impact on work-related
health culture. There is a contradiction in the AHS 2015 results where
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supervisor/managers generally report a positive work-related health culture but are
more likely to be overweight than paramedics.
Leadership
It was recognised that the quality and nature of leadership capabilities and health
of managers and supervisors can have a significant impact on workers (Sellgren,
Ekvall, & Tomson, 2008; Ghorbanian, Bahadori, & Nejati, 2012; Mattock, 2015). In
the semi-structured interviews, interviewees where given a description of
supervisor/managers that was found in the AHS2015. These descriptions included
working the longest hours, having the worst self-described health, not take regular rest
breaks, poor job satisfaction rates, were more overweight and had greater rates of
chronic disease and psychological distress. Interestingly, the non-operational group
counselling rates for managers and supervisors had increased by 300% since 2012,
which coincided with the last organisational restructure18. Supervisor/managers were
the group that were least likely to know what was expected of them by the organisation.
The response of interviewees was interpreted by the researcher as a ‘so what’ moment,
as though it was an expectation that this was what they do and how they are. The poor
health of ambulance supervisors/managers has not previously been reported in the
literature.
Intent to leave
The research from the U.S. (Blau, Chapman, Pred, & Lopez, 2009; Chapman et
al., 2009; Blau & Gibson, 2011) has related intent to leave or stay with job satisfaction,
opportunities for advancement, pay and benefits. In the AHS 2015 there was a
difference between what respondents say was consideration of intent to leave and the
18 This information was supplied by two people in separate semi-structured interviews.
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actual turnover rate of the ambulance service. This was supported in the literature and
in addition it was suggested the variables associated with each concept for intent to
leave and actual turnover were very different (Cohen, G., Blake, & Goodman, 2016).
There was a difference in the demographics of U.S. and Australian ambulance
services, which may account for the differences in intent to leave. For example, the
AHS 2015 showed graduate paramedics to be the single largest group who expressed
their intent to leave the ambulance service, which was not reported in the literature. A
negative job satisfaction, poor work-related health culture and high rates of
psychological distress score were related to intent to leave. Given the results of the
AHS 2015 and the relationships with intent to leave, it suggests the need for increased
attention on improving job satisfaction, work-related health culture and reducing
psychological distress as one way of improving the health status of AOP.
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5.3 Strategies to Improve AOP Health Status
A fundamental aim of our healthcare system is to prevent disease, reduce injuries
and risk so that people remain as healthy as possible with a reasonable quality of life
(QoL) (AIHW, 2018). Several challenges, such as demand growth that is faster than
population growth, having a professionally staffed ambulance service with few
volunteers and an aging population were likely to translate into increased job strain
and subsequent workplace stress (APSC, 2018). Additionally, these challenges can
lead to an expectation of higher performance of ambulance personnel, which can lead
to greater effect on employee’s health and well-being (Ogbonnaya, Daniels, Connolly,
& van Veldhoven, 2017).
Nielsen et al. (2017) identified four elements that when considered and acted
upon could lead to improved employee well-being and performance. These include job
satisfaction and shaping at an individual level, social support among colleagues at the
group level, quality relationships between leaders and employees at the leadership
level and autonomy of practice and flexible human resources practices that meet the
needs of a particular employment group at the organisational level. Job satisfaction has
been identified as low in the AHS 2015 and was linked to fatigue, anxiety, stressors
and poor self-reported health all of which have been identified as high (Hosseinabadi,
Karampourian, Beiranvand, & Pournia, 2013; Jimmieson, Tucker, & Walsh, 2016).
Job satisfaction was also linked to lower education levels and an aging worker.
Resilience was known to be built by better work cultures, healthier workers and work
redesign (Luthar, Cicchetti, & Becker, 2000). A low control high demand environment
and a younger workforce with limited experience limits the ability of an ambulance
service to allow autonomy of practice. In addition, human resource practices are tied
to policies and procedures that allow little room for flexibility and no one solution is
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going to improve the health of AOP. Additionally, employers now have a clear
deliniation of what are the issues with AOP health. Focusing on the associations and
predictors is one way of developing strategies to improve health status in AOP.
The semi-structured interviews were designed to gather thoughts on strategies
that would help improve health status. Whilst the interviewer produced evidence about
the effects of AOP’s work on their health from both the quantitative analysis and the
literature review, the opinions of interviewees were firmly grounded in their own
perspectives and experiences which may have changed as they were promoted or
moved to different positions in the organisation. However, it was disappointing to note
this change from the non-operational personnel who all had previous operational
experience. The researcher had an expectation that the interviewees previous
operational exposure would help them understand the perspective of current
operational personnel. Their previous perspective may have changed, based on future
leanings and what this means to the individual through necessary developmental
changes that confuse organisational, operational, social and personal responsibility.
Individuals must make a choice if they want to advance in an organisation and this
progress may affect perceptions. Organisations make cultural and operational changes
to improve and flourish and some do so without considering the effect on people, work
life balance and health status (Sanderson, 2012). It is important for an ambulance
service to have people in management with previous operational experience to inform
their work as managers and maintain current exposure to operations (Parker, R. et al.,
2008; Rahati, Sotudeh-Arani, Adib-Hajbaghery, & Rostami, 2015).
An example of this was how operational and non-operational personnel think
differently about absenteeism and presenteeism. Operational personnel described the
ambulance organisation as inflexible in meeting their needs and absenteeism was
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described by this group as maladaptive coping behaviour resulting from fatigue, stress,
long shifts, lack of rest breaks and job dissatisfaction. There are multiple references to
this in the research on AOP which describes absenteeism as a product of work
attitudes, thoughts of leaving, burnout and stress from ambulance specific,
organisational, family and personal stressors, manager characteristics, human resource
management practices, worker characteristics and the work and job environment (van
der Ploeg & Kleber, 2003; Wegge, Schmidt, Parkes, & Van Dick, 2007; Sterud et al.,
2008b; Sterud et al., 2011). On the other hand, comments by non-operational personnel
suggested absenteeism in younger workers was generational and seen as an
entitlement. In doing so, it was pointed out that older workers including supervisors,
managers and executives were retiring with large aggregates of accrued sick leave.
This reflects presenteeism, which has been recognised as costlier to an organisation
than absenteeism (Gosselin et al., 2013) and may mirror the expectations of the
organisation in terms of attendance pressure factors and male role norms (Aronsson &
Gustafsson, 2005; Hansen et al., 2011). Programs including organisational leadership,
health risk screening (it is known that this is now happening for executives and senior
managers in the ambulance service), individual health improvement programs and a
supportive workplace-based culture are known to reduce presenteeism (Anderson, L.
M. et al., 2009; Anyadike-Danes, 2017) and all need to be considered as part of the
health improvement strategy. It is important that this research be used to inform
management strategies to improve AOP health and develop an evidence base that
further inform health improvement strategies.
Health prevention and promotion such as anti-smoking, workplace health and
safety, worker wellness programs and an improved safety culture should assist in
achieving a healthier environment in which people feel safe, secure and can carry out
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their work without fear of injury or illness (Parks & Steelman, 2008; McCleary et al.,
2017; Reed, J. L. et al., 2017). The Australian population is experiencing increasing
levels of chronic illness as are AOP. However, AOP are experiencing rates of chronic
illness that are greater than the Australian population. Strategies are needed that
promote a sense of personal accomplishment and improvement in sleep and fatigue as
a way of reducing stress and improving the health of ambulance personnel. Nielsen et
al. (2017) identified that making a change at any one of the four levels can make a
difference to employee well-being and performance and that no level was more
effective than any other.
5.3.1 Improving the Health and Safety of AOP
When health and safety is mentioned to AOP and organisations, it is thought of
in a reactive sense. This research recognises the established nature of health and safety
but argues its value and affect is limited and that a new approach to this area is needed.
From an organisational perspective, the costs associated with health improvement of
operational personal must be demonstrated as having a positive return on investment,
through improvements in productivity, job satisfaction and reductions in injuries and
absenteeism. From the perspective of the individual worker the improvement of work-
life balance, reduction in fatigue, chronic disease and the risk of musculoskeletal
injuries are important. Addressing ambulance specific and general organisational
stressors, improving the working environment and demonstrating that the employer
genuinely cares for the worker are all issues that could be considered (Lu, Barriball,
Zhang, & While, 2012). A good example of this is the concern and research that is
being done to reduce occupational violence towards AOP (QAS, 2016a; Maguire,
Brian J et al., 2018)
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Whilst these issues seem to be dissimilar, they are analogous. The principal
strategies that have been found to improve the working environment, have focused on
safety culture, leadership and engagement, risk and injury management and improving
operational performance by reducing incidents and hazards, enhancing operational
capability, reducing Lost Time Injury Frequency Rate (LTIFR) and workers
compensation claims. Despite Nielsen et al. (2017) suggesting that making change at
any level of his model is likely to lead to improvement, DeGroot & Kiker (2003),
Jenkins et al. (2016) and Anyadike-Danes (2017) suggest that single interventions
alone do not work in improving the health of employees. In addition, caution should
be exercised when looking at U.S. based programs as they were built on reducing
health insurance costs as workplaces in the US. provide private health insurance for
employees (Emanuel, Glickman, & Johnson, 2017). Strategies must be
multidimensional including training, design, exercise and assistive devices. However,
Wiitavaara et al. (2007) suggest an even more comprehensive approach that involves
an increased understanding of the construct of illness and health in a work and social
context.
Some elements that contribute to the poor health status of AOP may be
unavoidable (e.g. exposure to human tragedy) as they are an inherent part of the work.
Health promotion programs should focus on building psychological, physical and
psychosocial resilience of individuals to mitigate the risk and impact. It has been
recognised that peer involvement plays a critical role in staff psychological wellness
(Scully, 2011) and it would be logical to suggest that this approach would assist in
improving overall health of AOP. This research indicates that as an industry, AOP
have increased chronic illness, obesity, sleep issues, anxiety and fatigue. The same
principles that apply to psychological wellness could be considered in improving
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physical and psychosocial wellness. A peer support program which can sustain health
promotion activities at the forefront of AOP, provide support, advice and referral to a
range of health providers may be an appropriate approach.
In terms of workplace health and safety, it has been acknowledged that by returning
workers back to work as early as possible, it is less likely they will have long term
disability and morbidity (Seing, MacEachen, Ekberg, & Ståhl, 2015; van Vilsteren et al.,
2015). However, a holistic approach to this issue should be considered, that focuses on the
circumstances of the injury or illness (not just the physical aspects) which informs
understanding, improvement and prevention. Additionally, concept mapping, group model
building, conjoint analysis and intervention mapping would be appropriate strategies for
developing and implementing health improvement programs for ambulance personnel
(Powell et al., 2017). An example of this approach based on the research findings showing
the complexity involved, has been developed for mental health disorders and is shown in
Figure 5.3. This model demonstrates that mental health is interconnected with multiple
variables that are related to health status, chronic disease, organisational symptomologies,
caring for self and risk factors. It is hypothesised that this complexity will be similar for
any risk factors. The model follows the relationship of mental health to multiple risk
factors and indicates a more complex interaction that just the work that AOP do. For
example, the model shows that anxiety is related to disability, where a person works, age,
poor self-reported health, work related health culture, thoughts of leaving, psychological
distress, cancer, long term conditions and job satisfaction.
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Figure 5-3. An Interconnectedness Model for Mental Health Disorders
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5.3.2 Improving Shift Work
Shift work is a major component of the work environment in ambulance services
and it is known that some individuals may be intolerant of shift work (Wright et al.,
2013) and that it is a isk factor for some ill health conditions (Tucker, Marqui, Folkard,
Ansiau, & Esquirol, 2012; Courtney, J. A., Francis, & Paxton, 2013). Protective factors
for shift work include younger age, male gender, high scores on flexibility,
extraversion and internal locus of control and low scores on languidity, morningness,
and neuroticism and a genetic disposition (Saksvik, Bjorvatn, Hetland, Sandal, &
Pallesen, 2011). These factors can determine tolerance to shift work with reasonable
accuracy, efficiency and in a timely manner (Aeschbach, 2013). In contrast to this,
tolerance to shift work is not tested in the recruitment of AOP. On the other hand,
strategies included in the education of AOP to cope with shift work were included in
initial induction processes. In addition, there are no strategies in ambulance that focus
on Shift Work Disorder (SWD). Whilst shift work disorder is a clinically diagnosed
condition, Flo et al. (2012) indicated that SWD can be adequately assessed using three
symptom-based questions and found significant associations between symptoms of
SWD and gender, age, night work, number of nights worked, working shifts separated
by less than 11 hours, languidity/flexibility, anxiety and insomnia in the adjusted
analysis. Whilst this may be an appropriate approach for an organisation, it may be
considered as discriminatory based on age and gender alone. In addition, there was
inconsistent and limited evidence that strategies currently used to assist AOP with shift
work issues do little to mitigate the effects of shift work (Hegg-Deloye, Sandrine et
al., 2013; Patterson et al., 2015).
Wright et al. (2013) outlined strategies that may be useful in managing the
effects of shift work and SWD which included education about vulnerable times of
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performance. They also include an individual approach from an appropriately qualified
sleep clinician that incorporates sleep promotion strategies, good sleep behaviours,
sleep napping strategies, promoting wakefulness, decreasing work hours and shift
length, bright light exposure at night (however this has been implicated in risk of
cancer) and reduced caffeine use. The concern with these strategies and particularly
reducing shift length and sleep napping strategies was that they may be discordant with
the AOP’s lifestyle and increasing workload. Longer shift lengths are preferred by
AOP, as they were seen to give extended periods of time away from work. However,
it was clear that longer shifts are detrimental to an AOPs’ health (Weaver et al., 2015b;
Patterson et al., 2016) and it was unclear if the time away from work after longer shifts
in a short period, provide enough time to recover fully before recommencing work and
reducing the impact on work competency. Conversely, compressing a working week
may improve AOP work-life balance with a low risk of adverse health effects (Bambra,
Whitehead, Sowden, Akers, & Petticrew, 2008). However, more research needs to be
conducted on this aspect of shift work for AOP, to determine the health effects of a
compressed working week.
Introducing healthy, flexible and family friendly rosters that improve
psychosocial support, reduce hours worked and include mandatory rest breaks in a
suitable environment may be methods that can provide some assistance. However,
these rosters can have unintended negative impacts such as reduced employment
participation especially for women, reduced career opportunities and access to
preferred roles. Skinner and Chapman (2013) suggests these types of rosters will only
be successful if the workers do not experience economic, social or career penalties.
Aiming for the roster that had the most evidence to show the least damaging effects on
an individual (e.g. working only one type of shift roster e.g. day shift) may be a strategy
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worth considering. However, this needs to be considered also in terms of work ability
as AOP age. Sallinen and Kecklund (2010) reported that despite the shift system, night
and early morning shifts and quick returns to work are associated with short sleep
durations and increased sleepiness (Sallinen & Kecklund, 2010). The balance is very
difficult to manage in meeting the needs of AOP and the organisation. It was
recognised that these will be difficult to manage in a 24-hour service and would most
likely require increased staffing levels, changes to employment type (e.g. a larger
number of permanent part time AOP) and shared rosters that allow a person to move
between types of rosters and workload to suit an individual’s personal needs. Rather
than a blanket method of improving rostering through organisational change it may be
more appropriate to include a step-wise approach, which includes education of workers
to recognise the aspect of their work that may be affecting their health, which in turn
can lead to AOP involvement in rostering (Skinner & Chapman, 2013). Creating some
work locations that are built on flexible rostering, rather than all locations working the
equivalent system, may assist in providing options for shift working personnel.
Including formal rest breaks and restricting end of shift overtime and offering ‘on time
finishes’ may also be considered.
5.3.3 Worksite Wellness Programs
Wellness programs are increasingly being used by organisations to improve the
health of employees, reduce unplanned absenteeism and improve productivity even
though the evidence is limited as to their economic effectiveness (Lerner, Rodday,
Cohen, & Rogers, 2013). This section of the AHS 2015 was categorised into three
elements: respondents who be involved in health programs if there were incentives,
those who would use wellness facilities if available and the time during a day when
health programs would most likely be completed. The evidence for workplace wellness
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programs was not clear. The lack of ‘down time’ in ambulance operations in urban
areas and the issues of fatigue and shift work introduce additional elements that
complicate any type of shift. AOP, especially in an urban environment, have limited
time to exercise at work. The type of work varies and can provoke stressors that are
different to those for whom the volume and intensity was high and consistent.
Interventions in the workplace to improve health need to be targeted at individuals
after having measured where their health lies, rather than at an organisational level
(Scott et al., 2003; Blake & Lloyd, 2008). Subsequently, the measurement of AOP’s
health was critical, as it had been shown that health risk appraisals (Chih-Wen et al.,
2009) can improve the health of workers. This was a significant element, as there is a
need to appreciate the health of all AOP may change over time as will work ability and
to be able to develop concepts of health improvement in this industry based on
causative factors and health outcomes.
Occupational risk or work disability for paramedics is known to be higher than
in the general population (Maguire, B.J. et al., 2014; Reichard et al., 2017). Combined
with the results of the AHS 2015 that show the health of AOP was related to the
working and organisational environment; a more comprehensive approach to risk
reduction and health improvement could be considered. Using the work ability index
may be one such approach that considers how long AOP are able to work and to what
extent this depends on work content and job demands (Ilmarinen, 2009). The work
ability index is a validated instrument (Ilmarinen, 2007) to assess the work ability of
workers. The WAI questionnaire covers the following dimensions of individuals:
Their current work ability compared with their lifetime best.
Their work ability in relation to the demands of the job.
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The number of diagnosed illnesses or limiting conditions from which they suffer.
Their estimated impairment owing to diseases/illnesses or limiting conditions.
The amount of sick leave they have taken during the last year.
Their own prognosis of their work ability in 2 years’ time.
The work ability index has never been tested in an ambulance service and it is
one method that should be considered in determining evidence-based concepts to
prevent work ability declining in AOP and maintaining wellbeing as AOP age.
A number of studies have been conducted on improving wellness through
physical exercise and these may have some applicability to ambulance services. Po-
Huang Chyou (2006) conducted a 20-week walking program with female employees
of a large medical practice and found that there was a statistically significant increase
in the amount of exercise and a decrease in mean BMI. Such a program could be
adapted to the Australian context as it is a simple and common-sense intervention for
AOP, by encouraging AOP to live close to where they work, by incorporating
incidental exercise in their daily routine and by using treadmills in every station and
operations centre. A wellness intervention in ambulance from a North Dublin Service
identified 97% with unhealthy lifestyle behaviours, of which 74% indicated they had
made positive lifestyle changes in relation to the maladaptive life behaviours
previously pursued (Devaney & Noone, 2008). Such programs may have long lasting
impacts. In a five year follow up of a one-year general physical fitness program for
home care personnel, (Pohjonen & Ranta, 2001) reported the positive effect obtained
in the original program had continued with body fat decreasing, dynamic muscle
performance and maximal oxygen consumption increasing and the work ability in the
control group decreasing three times faster than in the intervention group. This is
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another program that has adaptability to ambulance as it consisted of two exercise
sessions per week over one year and could possibly be conducted pre or post-shift or
in leisure time and involve family. What these programs did not consider was how to
manage the issues that may be causative of poor health status from an organisational
and lifestyle perspective. It is no use having these programs in place if workers are just
too fatigued to participate.
Only one study was found that attempted to address the cardiovascular and
physical health problems prevalent in EMS in the U.S. (Oglesbee et al., 2015). This
program used a relatively simple exercise, health promotion and assessment program
and showed improvements in diastolic blood pressure, heart rate, cholesterol, weight,
body fat and the number of push ups and sit ups that could be performed. What this
program did not address was worker’s time constraints. This is important, as the AHS
2015 survey identified lack of time and energy to exercise as the two major barriers to
exercise. The cost to employers should also be considered, and this could be
determined through a social cost benefit analysis that assesses the cost to employers of
introducing wellness programs for employees and considers not only organisational
performance improvements, but cost in terms of the risk factors, development of
disease, presenteeism and absenteeism and the psychosocial aspects of poor health.
Ambulance employers should note that benefits to the organisation may not be
immediately available (Berry, Mirabito, & Baun, 2010).
To develop sound strategies, some aspects of the AHS 2015 results should be
considered. When asked about barriers to exercise, lack of energy was reported by
72.7% and lack of time by 84.8% of respondents. This provides some evidence that
policies and programs reducing working hours, shift lengths and ensuring regular rest
breaks should be a priority for an ambulance service. The majority of respondents
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indicated they would be involved in wellness programs if there were incentives and
would use wellness facilities if they were available. The availability of wellness
facilities on site may encourage more physical activity at work, before, after work or
on rostered days off. These facilities could include exercise equipment, access to health
professionals, exercise physiologists, personal trainers, psychologists, dieticians, sleep
physicians and health assessments and through these professionals, the development
of individual health improvement programs. Another approach may include the access
to personal trainers and/or exercise physiologists in situations where health conditions
(e.g. obesity, chronic disease or mental health) are comorbid with AOP. An example
of such a program comes from the Australian Department of Veteran Affairs, who
fund individual programs with an exercise physiologist and/or a dietitian for veterans,
aimed at improving heart and mental health (DVA, 2018).
In summary, a health improvement strategy in an ambulance service ought to
contain fitness screening and medical evaluations tailored to individual risk. Fitness
programs could include physical activity, cardiorespiratory, muscle and flexibility
training. Behavioural modification could include tobacco smoking cessation,
hypertension, cholesterol, diabetes and obesity reduction and nutritional strategies.
Initial and ongoing education and screening must include health ergonomics, coping
with shift work, sleep improvement, fatigue reduction, stress management, injury
prevention, resilience training, safety culture improvement and leadership in health
improvement.
Criteria to evaluate the effectiveness of these programs will be needed. Whilst
there will be overarching strategies and policies, the programs should have an AOP
centred approach and ambulance organisations should commit, declare and
demonstrate that not only the safety, but the health of AOP is the highest priority. This
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
is a critical element in developing strategies and policies in regards the health of AOP.
Considering all these aspects, a complex and interlocking model for improving health
related risk factors and safety is provided in Figure 5.4.
Figure 5-4. Improving Health Related Risk Factors and Safety
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This model is a summary of this section and show the complexity and
interconnectedness of each element. That is, all elements need to be addressed in an
overarching plan. For instance, to look at just picking the right people, will solve no
issues if the safety culture doesn’t change, resilience training is not introduced and if
there is no evidence base for picking the right people. This framework allows people
to differentiate the perspectives and place them in the appropriate context, and to react
to the context in the proper way. In the absence of contextual differentiation, people
will do what is comfortable rather than what is appropriate.
5.4 A Conceptual Framework of Understanding
There is no such thing as an “average” operational person. Their roles differ as
does the operational and organisational context within which they operate. Thus, there
was unlikely to be a consistent picture of the “average” AOP, if such a concept was
useful or even relevant. There are five known studies (Boreham et al., 1994; Sterud et
al., 2006; Studnek, J. R., Bentley, et al., 2010; Pék et al., 2013; Betlehem et al., 2014)
that describe the health status of ambulance personnel and they discuss paramedics
only. There are no studies that describe the health status of EMDs or
supervisor/managers. In previous studies general health issues were less clearly linked
to the nature of the work or to the environment in which the work was undertaken (Soh
et al., 2016). Of interest, most respondents to a U.S. national longitudinal study of
health described their involvement in EMS as ‘not a primary career path’ and therefore
found it difficult to segment work related health issues from personal and other sources
of pathology. The major difference is that being employed by an Australian ambulance
service is a primary career path and associations with thoughts of leaving are related
to organisational symptomology and actually leaving is an economic or retirement
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decision (Bentley et al., 2016). Turnover rates are low and despite rumours to the
contrary, there is no evidence that graduate paramedics are leaving in higher number
than their non-graduate colleagues.
This research is the first that has developed a predictive model for back injuries
in AOP, which indicated that a mental health disorder, being a current shift worker,
family and personal stressors and job satisfaction influenced the risk of incurring a
back injury in ambulance service work. Importantly, the issues of employment type
(e.g. paramedic vs. an EMD), age, CVD, arthritis and respiratory conditions (AIHW,
2016a) were not part of the model, nor was gender (Aasa, Barnekow-Bergkvist, et al.,
2005) and self-reported health status (Studnek, J. R. & Crawford, 2007). This
conceptual model of understanding links health status, risk factors and organisational
symptomology to the chances of incurring a back injury and adds to the body of
evidence that organisational and psychosocial exposure is a diverse component of
incurring a back injury, more so than just physical exposure (Dropkin et al., 2015).
This research has shown that mental health disorders are a predictor of back injuries,
both of which have been shown to be significantly higher in the respondent population
than the Australian population. Age has been shown to be related to multiple
organisational symptoms, risk factors, disability and health status in the respondent
population. There are complex interactions between variables that are not as yet fully
understood.
The significance of these findings in relation to chronic disease should not be
underestimated. Whilst the causes of these high rates of chronic disease remain
unknown, the results show a group of workers who have substantially higher rates of
chronic disease than the Australian population. The results on chronic disease were a
disturbing trend and efforts to reduce chronic disease in AOP should be considered in
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the same context as mental health. If such an approach was taken and encompassed all
health considerations using a similar model to the ambulance service EAP (Scully,
2011) it is likely that there would be improvements in the health status of AOP. The
interconnectedness between mental health, chronic disease the work that AOP do, the
environment in which they work (especially paramedics) and the organisational
environment contribute to an increased rate of chronic disease. The models developed
in the regression analysis now allow prediction of chronic disease in this group of
workers. However, the latter three elements and the impact they have are fixed, and
further research is needed that links causation leading to a reduction in risk factors and
action to improve health at all levels of an ambulance service.
The issue of whether being an AOP is a young person’s role is going to be a
necessary component of future proofing this group of workers and if so, what role does
an ambulance service have in assisting these employees to develop other employment
opportunities in both an ambulance service and beyond. In addition and given that aged
workers in an ambulance service are known to be more susceptible to chronic disease,
fatigue, overweightness, poor exercise habits, all of which will lead into a less healthy
retirement, the question needs to be asked if there is a need for age-based recruitment
and continuing employment and fitness standards. However, some elements of the last
two comments are discriminatory and reducing and controlling hazards may be the
only short-term solution available. This approach is part of the current workplace
health and state system and cannot be considered unilaterally.
The regression modelling in the AHS 2015 did not find obesity to be related to
a mental health diagnosis or psychological distress but did find that overweight
respondents had an increased risk of sleeping less hours. Obesity is related to poor diet
and sedentary behaviour which were the result of environmental and psychosocial
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changes that were associated with lack of supportive policies in industry (WHO, 2016).
The AHS 2015 showed that body mass index for AOP was the same as the Australian
population and that waist-hip rates were 10% greater than the Australian population.
Waist-hip measures central adiposity, which is known as an enhanced measure of
cardio-metabolic risk (Ashwell, Gunn, & Gibson, 2012). This may be one of the
factors that have contributed to the high rates of CVD, three or more chronic diseases
and asthma in the respondent population. More studies are needed to determine
causation especially in relation to shift work, the working environment and
organisational commitment to the health of AOP which can lead to a heightened focus
on policies to improve health.
The model presented in Figure 5.5, unfolded as the research progressed and
presents the major factors that contribute to the health of the AOP over their working
lifetime. These actions should continue over a working lifetime and emphasise
individual worker health and ability. These elements are interrelated and taking a
positive step in one element should subsequently result in a chain reaction of improved
progression in an individual’s health. This model delays or negates negative
consequences, such as morbidity and possibly mortality, disability, performance and
absence and may lead to improved quality of life in retirement. Whilst this model may
have the appearance of a generic approach, it should be considered in the context of
working and organisational environment and the nature of the work in an ambulance
service, which was clearly outlined in Chapter Two. This conceptual model of
understanding has multiple components and was made even more complex with the
involvement of three employment types who experience distinctly different work
profiles and have multiple and different risks associated with their work. Its
complexity is significant, as demonstrated by the interconnectedness model developed
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for mental health disorders (see Figure 5.3). The complexity has been reduced by
grouping multiple variables into 13 elements and further classifying these into three
groups which are described in more detail below.
Group one includes social networks and psychosocial factors, demographics,
individual characteristics risk management and work-life balance, the work
environment and the nature of the job. Whilst it may be considered as discriminatory,
employers need to ask the question in regards picking the right people for a position.
However, this needs to be considered in terms of reducing the risk of an inherent task
requirement and creating organisational solutions. For example, knowing someone
was incompatible with shift work may impact on patients and safety. Group two
includes health monitoring and promotion, education and health activities. Group three
includes health friendly organisational and leader characteristics and a safety culture
for work-life.
A conceptual framework of health improvement has also been developed that
considers determinants, participation and policy proposals in more detail. This model
is described in Figure 5.6. There are only two structural determinants of gender and
occupation considered in this model, which was particularly important, as occupation
reflects standing, social networks, work stress, control and autonomy, work
environment, tasks and exposure (e.g. physical demands or sedentary behaviour). The
other structural determinants of health were not considered in this model as there was
an assumption that all respondents in similar employment groups have similar
determinants such as income, education, and social class. There were several next level
determinants that have been considered in developing a conceptual model for health
improvement such as the work environment, psychosocial factors (work, personal and
family stressors, social support, lifestyle and living circumstances), behavioural and
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biological factors, which include nutrition, physical activity, tobacco smoking and
alcohol and predisposition to some chronic diseases. These factors have been identified
as being negatively associated with AOP health status through the AHS 2015.
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Figure 5-5. A Conceptual Model of Understanding the Health of AOP.
Health ‐mental and physical
(EMDs, Supervisors, Paramedics)
Psychosocial factors Work
environment & nature of the
job
Health promotion
Health friendly organisational
& leader characteristics
Demographics e.g. age,
gender, YIA, job type
Staff & peer support‐
psychological and physical
Health activities
Safety culture for work‐life
Education
Health monitoring
Social networks
Risk management &
work‐life balance
Individual characteristics
Education
Involving
Informing
Collaborating
Empowering
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Figure 5-6. A Conceptual Framework for Health Improvement of AOP
•Gender
•Occupation
Structural Determinants:
•Work environment
•Psychosocial factors
•work, personal, family & organisational stressors
•Living circumstances ‐ renting, morgatge, children, relationship, debt
•Biological ‐ genetic
•Behaviour ‐ smoking, alcohol, obesity, other risk factors
•Predisposition to disease
Next Level Determinants
•Informing ‐ problem, objective, altenatives, solution
•Consulting ‐ feedback
•Involving ‐ ensure concerns, aspirations, opinions are considered
•Collaborate ‐ partner with employment groups, funding, assessors and providers to develop alternatives and preferred solutions
•Empower ‐ individuals and groups ‐ they have ultimate control over decisions that affect their well‐being
Particpation and Empowernment of Employment Groups & individuals
•Reduce inequalities based on gender and occupation
•Job security, opportunities and alternatives based on age , chronic disease without making workers downwardly mobile
•Improved work environments with alternatives for gender, single parents, aged and workers with dependants
•Work overload to reduce disability
•Working hours, shift length, regular rest breaks, napping opportunities
•Health, safety and culture
•Health promotion, healthy lifestyles, obesity, sedentary behaviour, physical activity
•Health facilities, access, providers, health assessments, health programs and peer support
•Responsibility of inidviduals, groups, the organisation
•Funding
•Education ‐ determinants of health , risk, sleep , exercise, strength , flexibility , fatigue, mental and physical health, wellness
•Healthy Leader development
•Workforce reintegration post illness or injury and workers who are incapacitated including social and income protection and job alternatives
•Preemployment fitness and functional assessments
•Continuing fitness for purpose
•Assistance for those who care for dependants
Policies
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Conclusion
The task of constructing the model that will guide policy will be difficult, as it
will be developed at an organisational level, however aimed at an individual worker.
The health status of the AOP has been identified as complex and will require a
multifaceted approach to an issue that is not fully understood. Several purposes for a
conceptual model of understanding have already been discussed in this research and
include the determinants of AOP health status and the inequalities between the three
employment types. In addition, the determinants and risk factors were shown how they
relate to each other and create inequalities in health status between employment
groups.
Integrating training facilities amongst emergency service providers may reduce
cost but maintaining ambulance employees as advisors and supporters to AOP is a
sensible approach. Funding, motivation, mandatory components, incentives, liability
and well-defined purposes will need careful attention as will areas with heavy
workload and more remote areas, hours worked, shift length, irregular rest breaks and
overtime to reduce time constraints for health improvement.
Increased collaboration between all emergency service organisations in regards
health and wellness challenges and initiatives will create opportunities for
improvement. Research collaboration with universities would also assist in providing
an evidence base for programs and enhancing the knowledge base (especially
concerning causation) in regards the health of the ambulance workforce.
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6 Conclusions
This is the first research that attempts to develop knowledge and understanding
of the health of AOP in Australia. This research subsequently demonstrated
associations between the various elements of the organisation of the work, the working
and organisational environment, the prevalence of risk factors and chronic disease,
predictive models and the demographics of AOP. The final section of chapter five
developed a conceptual model of understanding the issue, and a framework for
improving the health of AOP. This research is the most significant that has been
completed on the health of AOP in Australia and should underpin an increased
understanding and action to improve the health of this group of workers throughout
Australia, via direct action by ambulance services and AOP.
The research question sought to add to the body of knowledge on AOP health
status, risk factors and how that may be mitigated in the future. This research sought
to answer the following sub questions:
What are the characteristics of the physical and mental health of ambulance
operational personnel?
What are the individual and work-related factors that influence this health?
What strategies may lead to the improvement of health?
Study 1 was a systematic literature review associated with the health status of
AOP including the influence of organisational and lifestyle factors in achieving a
positive work life balance.
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Study 2 was a survey and data analysis on the health status of a sample of AOP
and a thematic analysis of the outcomes from semi-structured interviews. The
Ambulance Health Survey 2015 (AHS 2015) was the principal primary data source of
the research. The AHS 2015 results contributed to a systems analysis by utilising a
convenience sample of stakeholders from managers, supervisors, paramedics and
EMDs to identify and evaluate proposals for health and wellbeing interventions.
6.1 Implications for Policy Makers
This section is informed by a six point policy map (see figure 6.1) that has many
connections with that which has been described thus far. The most important elements
are explained below and form the basis for any ambulance organisation developing
policy in improving the health of AOP.
Working conditions
Fact based policy
Research reporting & feedback
Health programs
AOP health & wellbeing
Data collection & analysis
Health promotion
Shift workLong shiftsBreaks
Work demands
AuthorityMeasuresPrinciples
Strategies associated with improving healath
Physical and psychological resilience
PreventionSafety culture
FacilitiesExpert supportPeer support
Individual programs
CAAReaction & response
UniversitiesFunding
Workforce dataHealth data
Organisational data
Work based wellness programsWork ability
Aging
Job satisfactionSleepFatigue
Chronic diseaseInjuries
Figure 6-1. A six point policy map
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Psychological distress
This research found that paramedics have a higher injury rate than average and
were susceptible to psychological distress associated with the demands of the
organisation of the work, organisational and environmental issues. Whilst this is
contradictory, the rate of mental illness and psychological distress was statistically
significantly lower than the Australian population and that reported in the literature.
Furthermore, good quality psychological support programs that included a peer
component, education and prevention strategies and promote good mental health and
post traumatic growth, may be part of the solution in reducing mental health issues and
psychological distress. However, even with these programs in place, 78.4% of
respondents to the AHS 2015 reported experiencing depression ‘most of the time’ ‘to
all of the time’ in the four weeks leading up to the survey. This may or may not
represent a chronic depressive issue or it could be an acute episode based on an event
in that individual’s personal life or work in that four weeks.
Injuries and Occupational Health and Safety
In some countries, transport related incidents in comparative populations
accounted for most of the injuries whilst in Australia most injuries were related to
lifting, pulling or carrying. Poor sleep, fatigue and obesity have been implicated in this
injury rate (Sofianopoulos, Williams, & Archer, 2012). Injury rates have been shown
to be high and related to obesity, psychological distress and mental health disorders.
This suggests that a reactive approach to OHS in an ambulance service has limited
effectiveness in improving worker health and consideration should be given a number
of elements that have the potential to improve health and subsequently reduce injuries.
These should include an improved safety culture approach, safety champions, regular
health checks which include consultation with a psychologist, dietitian, exercise
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physiologist and an occupational physician. As incidents and hazards occur, then not
only does the injured AOP have case management, but an approach that considers how
the risks joined to form an incident that led to an injury and what can be done to
overcome these issues. Generalities should no longer be allowed, and investigations
have to provide specific actions that can be implemented as preventative measures or
controls whilst maintaining the privacy of the individual.
There should be a thorough review of safety and lifting equipment that can be
used in ambulance services and they should invest in finding and developing
engineering solutions to reduce injuries. It is up to policy makers, regulators and
technical designers to find solutions. Injured AOP should be brought back to the
workplace in worthwhile employment related to the employment type, as early as
possible with no loss of wages. Those that are no longer capable of working as an
AOP, must be comprehensively supported to find suitable employment. This will
require policy and structural changes to government level responses that apply to
whole of government organisations, recognising the significant factors that impact
upon the OHS of AOP. For instance, The Queensland Work and Safety Act and
Regulation 2011, Codes of practice which include fitness for duty requirements for
individual that are related to the components of the work that this research has
identified (WorkCover Queensland, 2019).
The ambulance service already promotes the health and safety of AOP.
However, the model is based on a reactionary approach of improving safety culture
and case managing people who were injured at work. There is now evidence of an
association between the physical health of AOP, job satisfaction, work environment,
sleep, fatigue, psychological distress, family stressors and ambulance specific stressors
such as leader support and work-related health culture. Furthermore, the literature
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raises evidence of a link between an AOP’s health and injuries at work. The workforce
is rapidly casualising and moving towards a gender balance, with the literature
reporting increasing injuries in ambulance work related to female workers. In addition,
there was a link between improving physical health and mental health, obesity and
work performance, including CPR and absenteeism. The challenge for organisations
is creating policy of pronounced sagacity, raising awareness of these links from an
organisational and individual worker sense and finding solutions that meet the needs
of both parties and OHS regulators.
Stress
It is known from other studies that low self-reported health is associated with
higher rates of mental health issues, low physical activity rates and obesity (Scott, Lim,
Al-Hamzawi, & et al., 2016). Psychological distress has been related to ambulance
work, such as acute stressors (e.g. dead children) and whilst it is recognised that some
AOP will be affected, this stress is more often being related to organisational (e.g. loss
of control and poor leadership) and environmental factors (e.g. the social aspects of
work) in the ambulance industry (Rybojad, Aftyka, Baran, & Rzońca, 2016; Asbury
et al., 2018). Stress is known to have a relationship with some mental and physical risk
factors such as diet and obesity and whilst it had been suggested that resilience of the
individual is related to stress, that resilience can be affected by work engagement such
as lack of communication and long shifts which can be exacerbated by fatigue, anxiety
and poor sleep. Job satisfaction, intent to leave and absenteeism were known to be
affected by work engagement, organisational and ambulance specific stressors. It is
known that sleep hours had decreased, fatigue and anxiety had increased and were
impacted by multiple factors such as sedentary behaviour, alcohol, age and disability,
job satisfaction, work -related health culture and where thoughts of leaving are high.
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These have been shown to be associated with the organisation of the work. This means
that policy makers are going have to either decrease the lengths of shifts, which will
be an unpopular choice, or have shifts finish on time unless there is a critical
emergency. Smaller length shifts could be developed that ensure coverage at the end
of longer shifts and in rest break times. This is likely to be difficult, complex and
industrially charged.
Aging workers
Developing policies based on age is discriminatory, therefore there will need to
more effort placed on aged workers maintaining fitness for duty, reducing obesity,
improving diet and alternative rostering arrangements that are known to be less
fatiguing. The difficulty with rostering however, is that different rosters incur different
rates of pay and until a composite rate is developed and implemented, that allows AOP
to move between rosters without financial loss, it will be a complicated issue to
resolve.
Fatigue
Although lifestyle choices have been linked to obesity, diet and physical
exercise, it was not known how this relates to ambulance work and whether this work
was a causative agent of lifestyle choices (Rosenkranz et al., 2013). Fatigue had been
described as high and implicated in long shifts and irregular rest breaks and has been
associated with musculoskeletal injuries in paramedics (Sluiter et al., 2003; Tucker,
2003; Patterson, Weaver, Hostler, et al., 2012). This research associated fatigue with
job satisfaction, alcohol consumption, age and having a disability. Occupational
violence is known to be increasing and was described as being higher for female
paramedics and has been implicated in job satisfaction (Maguire, Brian J et al., 2018).
Solutions must be sought for fatigue and these should include improving job
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satisfaction and reducing disabilities and back injuries. Fatigue must be addressed as
not only is it associated with increased rates of injuries in AOP (Patterson, P. Daniel,
Weaver, Hostler, et al., 2012) but sleepiness (Patterson, P. D., Weaver, Frank, et al.,
2012; Courtney, J. A. et al., 2013) and patient mortality (Brachet, David, & Duseja,
2010). Fatigue is one of the major hazards that can be modified by a detailed review
of the organisation of the work.
Shift work
Shift work has physiological, psychological and social effects because of the
disruption to normal sleep-wake cycle (Sofianopoulos et al., 2012; Aeschbach, 2013).
In addition, shift work was known to affect social and quality of life and that these
shift workers were more likely to have extra accidents and sickness absence
(Schernhammer, 2016). Continuing this theme, shift work in AOP in Australia has
been associated with increased risk of fatigue, depression and poor-quality sleep
excessive sleepiness, nodding off whilst driving and poor sleep quality (Archer, 2012).
This research showed that shift work increased your chances of cancer, poor sleep, and
a back injury and reduced rates of exercise. The risk of delayed sleep onset and
maintenance issues was more prevalent amongst those AOP who worked longer shifts.
Finally, shift work disorder (a medically diagnosed condition) has been described as
incompatible with shift work and may influence 10 to 31% of AOP (Wright et al.,
2013). More effort will need to be placed on reducing the hazards associated with shift
work and shift work disorder. Although it could be considered as discriminatory,
selecting those who are more compatible with shift work and incompatible with shift
working disorder should be considered. This is really no different from psychometric
testing of applicants who are selected based on their results that indicate they are more
likely to grow from their experiences as an AOP. Initial and continuing education will
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need to be considered for this issue together with access to appropriately qualified
clinicians (e.g. sleep physicians) for evaluation and assistance. Different rosters could
be designed and are known to be in place in the ambulance service, but the issue of
financial loss will limit their effectiveness and the number of people who want to work
these rostering arrangements. Policy makers will have to find solutions to these issues.
Workplace based wellness programs
There was some evidence in other industries that workplace-based health
improvement strategies may be effective, especially for improving physical activity.
There were significant gaps in the literature, especially in Australia, on demographics,
health status, health risks, and the work-related health culture of AOP and ambulance
services and how these elements interact and influence each and the consequences.
Whilst most of the literature focuses on paramedics, there was little concerning EMDs
and no literature on supervisor/managers apart from that which describes the effect of
inadequate leadership on workers.
Job satisfaction
Of concern was the relationship of AOP to organisational symptoms such as job
satisfaction, work related health culture, thoughts of leaving and rest breaks. This
research has shown some common predictors of these four such as age, employment
type, fatigue, self-reported health and psychological distress. Although it was
recognised that these are complex problems which require evidence-based solutions,
this research provides some clues for a partial resolution. For instance, job satisfaction
has been related to fatigue and in turn to not getting formal rest breaks. It is intuitive,
that should all AOP get regular rest breaks that job satisfaction increases, fatigue
decreases and the known health impacts on AOP reduce. Job satisfaction has been
shown to be at the core of many of these issues in this research and policy makers will
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have to find solutions that improve job satisfaction. A starting point is the predictors
of job satisfaction such as reducing anxiety, fatigue and poor health.
Supervisor/managers will need particular attention as poor job satisfaction in this
group has the potential to affect other AOP. Reducing disability and back injuries has
already been discussed in terms of OHS, however improving the work-related health
culture and decreasing psychological distress will be necessary for reducing anxiety.
Ensuring AOP get regular rest breaks and that shift times are not extended will be
critical in reducing fatigue, anxiety and subsequently barriers to exercise. Age has
already been discussed, but workload will need to be considered in terms of caseload
per week, month or year as this has been implicated in anxiety, fatigue and
performance. Therefore, workload policies that distribute work evenly amongst AOP
should be considered.
Work demands
Predicting the work demands that make individuals more susceptible to
musculoskeletal injuries and mental health issues was unclear. It was found that the
rate of back injuries in paramedics was twice that of the Australian population and
subsequent regression analysis found the predictors of back injuries included being a
current shift worker, a mental health disorder, family stressors, personal problems and
job satisfaction. These risk factors could be addressed. Twice as many males as
females had back problems, nonetheless when looked at as a proportion of each
gender; males had a slightly increased risk of having a back problem. Increasing back
problems were also associated with decreasing job satisfaction. As the workforce is
approaching a gender balance, consideration should be given to how an increase in
musculoskeletal injuries can be reduced, which is likely to increase as the proportion
of females increases. OHS issues in regards lifting equipment have already been
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discussed. There needs to be more emphasis on selecting the right people from a
psychological and physiological perspective without being discriminatory. Policy
makers will need to consider programs for the three levels of AOP that assist in
maintaining fitness for duty. These issues need to be considered at the start of a career.
This is an issue for policy makers at university level and it is suggested that the same
approach that is used to select candidates for medical undergraduate degrees, be
utilised in selecting candidates for paramedicine undergraduate degrees. For instance,
a first aid certificate is a prerequisite for entering the paramedic degree at Australian
Catholic University. Other necessary prerequisites, for instance mental health first aid,
could be similarly introduced.
Chronic disease
Of immediate concern was the rate of chronic disease and its corresponding
relationship with several factors such as BMI, age, sleep and psychological distress.
Higher rates of chronic diseases were reported by respondents to this research when
compared to the Australian population. Of significant concern was asthma which was
primarily in the younger age group, CVD which was higher in all age groups and
overall and the proportion of respondents with three or more chronic diseases which
was 2.5 times that of the Australian population. Males reported more chronic disease
than females and those who had three or more chronic diseases were more likely to be
older or work in rural ambulance stations. Mental health was found to be lower than
that of the Australian population and mental health disorders were more likely as years
in an ambulance service increased. It is known that the psychological support services
in the ambulance service were being consulted increasingly by younger AOP and
supervisor managers which suggest this system is working. Or, it could be that younger
AOP have been encouraged to share their feelings at an earlier age. However, it was
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not known if the current psychological support approach of the ambulance service will
translate into reduced mental health issues in AOP later in life.
This is an important point, as if the current EAP works well, then a similar
program that introduces the other aspects of health discussed in this research, may also
work to improve the health of AOP. The complexity of the mental health issue in an
ambulance service is not understood. This research showed multiple links (see Figure
5.3) which included chronic disease, back injuries, psychological distress, anxiety,
organisational symptoms, workplace, employment type, health culture, caring for self,
family and personal stressors and fatigue. It is now incumbent on ambulance services
to expand mental health programs to include all aspects of these predictors to ensure
mental health issues are addressed in their totality. For example, one of the predictors
of mental health issues is anxiety, however reducing anxiety cannot be accomplished
unless its’ predictors are addressed. The complexity increases the further this chain of
predictors is followed. Ambulance services will need to improve employee assistance
programs to include multiple elements if they are to definitively address the mental
health issues of AOP. Depression may be much higher than formerly recognised and
related to a greater number of variables than previously thought.
Work ability
Ambulance services have much to consider, for instance, as a person’s work
ability changes throughout life and they are transitioned into other job types, this
should not result in loss of self-worth, economic loss or psychosocial support. In
addition, those who apply for a promotion and were found suitable but have individual
characteristics that were known to impose upon the individual a greater risk of poor
health status should be considered by policy makers. Health monitoring is a critical
component of health improvement and consideration needs to be given to how it can
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be matched against work ability and job requirements without invading the privacy of
this information. What are the implications for policy makers if a worker’s health
status does not improve? Who then is responsible and to what extent and if there were
increased risks associated with that decreasing health status, should the worker stay in
that position? There is a complex range of legislative, regulatory, policy and
discriminatory issues associated with these issues that need to be considered in a
considerate and sensible way. For instance, should someone who was overweight,
doesn’t exercise, has a poor diet and does not demonstrate a healthy role model be
selected as a supervisor/manager and to what extent should these issues be considered
in a selection process, if at all? This relates to fitness for inherent task requirements
and is a complex issue which needs careful consideration and would require non-
discriminatory performance measures, an evidence base and not be retrospective.
However, performance testing for fitness for duty is more often performed with
already employed individuals (Allen, Stein, & Miller, 1990) e.g. breath testing AOP
before they commerce duty. However, an approach of this nature will need to be tested
clinically as promoted AOP often work alone and are sent as a first responder to
critically ill and injured people.
Strategies for improving health
It was shown by this research that physical fitness, sleep, fatigue, alcohol,
tobacco smoking, work-related health culture, job satisfaction, supervisor support, the
nature of the work and intent to leave were associated with the health of the AOP.
Knowing these gives policy makers an opportunity to consider options to reduce
chronic disease with AOP. The argument put forward in the semi-structured
interviews, that an ambulance service is not responsible for the lifestyle choices of
AOP, no longer has validity, as chronic disease in AOP has been associated with the
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organisation of the work, the working and organisational environment in an ambulance
service. The health department in the state where this research was conducted has
multiple programs available to promote public and health worker wellbeing. These
programs include cancer screening, diet and nutrition, fitness and exercise, alcohol,
tobacco smoking and drugs, mental health, men and woman’s mental health, sexual
health, environmental, sun and food safety, community programs and workplace
health and safety. These programs are available for specific groups within the
community as well as AOP. Whilst they have been promoted within the ambulance
service, they are not at the forefront of an AOP’s mind in a busy working environment
that includes shift work. A peer approach to increasing health promotion visibility
should be considered by ambulance services. There is evidence from this research that
a peer approach to reducing mental health disorders and psychological distress is a key
component of any organisations in reducing and controlling work related risk, which
may be applicable to other AOP support programs.
To promote health related quality of life and the management and reduction of
chronic diseases in AOP, mass media campaigns could be used to deliver information
about healthy eating, levels of physical exercise, coping with shift work, sleep and
fatigue and how these programs can be incorporated into the life of individuals. Health
promotion is a well-established discipline and is at the core of improving the health
status of AOP. However, it should be adapted to different employment types and the
risks associated with that employment, which is another complexity for policy makers
to consider. These programs need to be continuous over the life of an AOP. As an
example, and whilst people may choose where they live, encouraging workers to live
closer to their workplace and encouraging ambulance services to place workers close
to their place of residence can then assist in promoting a program that encourages
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people to walk or cycle to and from work. This introduces complex issues, for instance,
the large proportion of graduate paramedics that live in urban areas yet must travel to
outlying areas to work.
A high demand and low control work environment has been implicated in
determining organisational stressors in ambulance service and other industries such as
nursing (Smulders & Nijhuis, 1999; Söderfeldt, Söderfeldt, Ohlson, Theorell, & Jones,
2000; Regehr, C. M., D, 2007). There may be little able to be achieved in terms of
changing this model in a highly technical, skilled and knowledgeable workforce such
as AOP, for reasons such as governance, patient outcomes, occupational violence and
harassment. However there does need to be consideration to finding ways of increasing
support for AOP, which may increase the sense that AOP skills and knowledge are
valued and their decisions and opinions are respected.
Travel to and from work adds a considerable burden on a worker in extending
an already lengthy shift that may have involved an extension of work hours. It can lead
to increased accidents and injuries at and away from work, adverse effects on health
and increased absenteeism (Knauth, 2007). This is particularly the case in ambulance
services where workers are exposed to occupational violence, high rates of injuries,
infectious diseases, distressing human suffering and patients affected by drugs, alcohol
and mental health disorders. AOP are often employed in areas where they are away
from family and friends and my work a long distance from their home. This research
has also reported higher rates of back injuries in those who work at busier stations.
This goes to the issue of fatigue and stress. Further research should be conducted, that
develops a body of evidence into the effects of these issues on AOP and policy makers
at an organisational and regulatory level need to consider changes that helps to modify
these effects.
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Conclusion
The ambulance service involved in this research has been very successful at
reducing and containing mental health issues and psychological distress, promoting
post traumatic growth, resilience and good mental health in AOP, which was widely
recognised as related to ambulance work, culture and environment. A similar link has
now been shown to exist between physical health and ambulance work. The ambulance
service employee assistance program that includes access to psychologists, counsellors
and an extensive peer support system has been instrumental in providing psychological
support and reducing known adverse outcomes from exposure to ambulance work to
less than that of the Australian population. This approach has merit and with
modification or duplication to include health promotion, healthy eating and exercise,
may be successful in improving the physical health of AOP, which in turn may have a
further positive effect on the mental health of this population.
A review of health and wellness programs in Victorian Emergency Services (this
includes ambulance services) (Baum, 2011), found only two programs for the
ambulance service that were aimed at improving physical health and diet. Both were
health promotion activities. In the Ambulance Service where this research took place,
there is a multitude of health promotion and prevention programs available which may
not necessarily be known or accessed, despite information about these programs being
readily available and having been advertised. Bringing these programs to the attention
of AOP will require consistent education, promotion and peers who were willing to
assist in improving the holistic health of AOP. This section finishes with a succinct
description of the six point policy map described in Figure 6.1-1
1. Develop a constantly evolving evidence base for all aspects of health including
changes over time, assessment and preemployment data.
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2. Improving research activities surrounding that health and using an evidence base
in determining policies and participation in improving organisational, work and
individual factors that improve health status, reduce risk factors, improve
performance and culture.
3. A policy approach that includes a whole of working life approach to health which
embraces position changes, work ability changes, culture, retirement, valid
instruments, measures and improving the health culture to reduce injuries,
disability and chronic disease.
4. Health promotion will require constant attention and peers may be an important
component in achieving this
5. Programs which include access to experts (dieticians, exercise physiologist, sleep
physicians), access to facilities and given the success of the Employee Assistance
Program in reducing mental health conditions & psychological distress, use this
same approach in developing a holistic wellness approach for AOP.
6. The collection of workforce, health and organisational data such as hours worked,
type of shift, location, estimated workload, factors influencing job satisfaction,
health culture and occupational violence that will help to identify any causative
factors that potentially impact on the health of the ambulance worker.
6.2 Strengths and Limitations
6.2.1 Strengths
This research has several strengths. First, the research was conducted in a
previously unstudied population. No research has been completed on the health of
AOP in any ambulance service in Australia that has such a broad focus. This research
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has implicated the work of AOP, the organisation of the work and the working and
organisational environment with AOP health and provides further evidence that AOP
have increased risk factors and an increased prevalence of some health-related issues.
Second, the collection of data on the demographics, risk factors, self-reported
health and other factors related to ambulance work and AOP health is the most
comprehensive in Australia and has wide-ranging implications for ambulance services.
No research in Australia has gathered such a wide variety of data elements that impact
on overall health status of the three employment types. Additionally, the studies on
health status of AOP in Australia focus predominantly on mental health (Courtney, J.
A. et al., 2013; Roberts et al., 2015; Wild et al., 2018).
Third, whilst this data was collected in only one ambulance service, there were
many similarities with the clinical work, organisation of that work and the work and
organisational environment in ambulance services in other states of Australia,
especially those that have a very large population base. This research may have
implications for other ambulance services and may present an opportunity or
motivation for all Australian ambulance services to consider the implications of this
research for the health of AOP.
Fourth, whilst the survey tool comprised some elements of non-validated and
validated instruments, it was designed to make the questions relevant to AOP. This
survey instrument, whilst not validated, is the start of a process that may lead to a
validated survey tool or tools that will be accepted Australia wide as an appropriate
tool for assessing the health of AOP and how the work of this group affects their health.
Over time a validated survey tool will contribute to the development of knowledge of
causation of poor health in AOP. It is known that several ambulance services are
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considering how they can assist in improving the health of the AOP and this research
provides further evidence of the increasing need.
Fifth, this research used a mixed methods approach which integrated quantitative
and qualitative research approaches. Using a sequential mixed methods design allowed
for a better understanding of the research question than either quantitative or
qualitative alone and provided more nuanced and contextualised research. In
interviewing the stakeholders, it showed a disparity between operational and non-
operational perceptions of the health status of AOP and the lack of evidence in policy
that can affect this health status.
Sixth, the respondent AOP is representative of the ambulance service AOP in
terms of age, gender and employment type.
Seventh, by using elements of the Australian Health Survey 2011-13, the
respondent data was able to be compared to the Australian population data.
6.2.2 Limitations
First, the cross-sectional design of the research does not allow the determination
of causality and the direction of associations cannot be determined. Care should be
exercised when looking at the nature of the associations between variables. For
instance, whilst psychological distress was shown to be less than the Australian
population, it was statistically significantly associated with job satisfaction. However,
the job satisfaction survey used in the AHS 2015 has never been previously validated
in any setting. Consequently, Cronbach’s Alpha was used to determine the
reliability of this component of the AHS 2015 which demonstrated strong
internal consistency. What was not known is whether health status affected
psychological distress or psychological distress affected health status. However, given
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the constraint of time and resources, a cross-sectional design was very useful and
provides a level four evidence base (NHMRC, 2008). This survey could have been
exposed to question and questionnaire design bias, transcription bias, survivor bias,
cultural difference and respondent recall.
Second, this research used self-reported data, and from that perspective has
several limitations. For instance, the questions were predetermined and even though
they were tested for face validity, it forced respondents to answer what the researcher
wanted to find out rather than what they wanted to say, and respondents could ignore
a question completely. To reduce the size of an already large survey, limited
opportunity was given for respondents to add to their response. This can potentially
reduce the validity. However, using a mixed methods approach, provided opportunity
for stakeholders (albeit a limited number) to comment on the data.
Third, social desirability bias could have an impact in terms of under-reporting
variables that reflect poorly on the individual (e.g. alcohol) or over reporting those
variables that reflect on blameless behaviour (e.g. self-reported health). However, in
this survey no individual could be identified, and anonymity was assured. For example,
it was known that respondents may underreport alcohol consumption (Livingston &
Callinan, 2015). In addition, this survey may reflect the culture of the organisation in
that the AOP think of themselves as carers and that their health was invulnerable to
the vagaries of their work (Clompus & Albarran, 2016), which may be especially true
for the younger ambulance population. As such, this may reflect in a lowered response
rate.
Fourth, the AHS 2015 was large, with 154 questions and some questions having
multiple response parts. As such, it may lead to lower response rates. Some questions
may be misunderstood or may take more time to answer and require detailed thinking
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about the response. As an example, the questions on exercise required respondents to
think about hours of exercise in three categories over the two weeks before the survey
took place. This may lower the reliability of the data.
Fifth, even though this questionnaire was pilot tested for face validity and
content and construct validity, the survey has not previously been used or validated in
another ambulance setting. This can potentially leave the research open to claims that
it does not measure up to its assertions.
Sixth, this research compared the health characteristics of AOP with that of the
Australian population and an older survey of these workers in regards sleep, fatigue
and anxiety (Parker, A. W. & Hubinger, 2003). In comparing the AHS 2015 results
with the Australian population it could potentially confound the results as there were
many differences between the average Australian (if there was even such a person) and
AOP, especially paramedics. For instance, the data from the AHS 2015 included
working paramedics, whilst the data for the Australian population included working
and non-working population. In making comparisons between current AOP and those
who were surveyed 15 year ago (sleep, fatigue and anxiety) (Parker, A. W. &
Hubinger, 2003), the results could be confounded as the organisation of the work and
the working environment have changed in the ambulance service, including a move
towards a systematic approach for EMDs, increased workload, a younger workforce,
increased responsibility of supervisors, increased requirements for clinical competence
and governance, a move to longer shifts, gender equality and casualisation of the
workforce and a university undergraduate degree in paramedicine as a prerequisite to
employment with an ambulance service.
Seventh, the survey data was self-reported and may differ from other surveys
that have different collection methods and that are conducted by ambulance
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organisations in regards their employees. However, it is known that the ambulance
service in this research, has collected data from organisational surveys using the same
methodology as this research; that is, mail out questionnaires. Some of the AHS 2015
data may have quality issues, for instance alcohol, and exercise. Caution should be
taken when interpreting some results (e.g. only 223 respondents answered all questions
that allowed an accurate description of exercise hours). However, by using the same
elements from the Australian Health Survey, the AHS 2015 results provided useful
information (e.g. alcohol consumption) for a subset of the Australian population and
how actions change over time (e.g. alcohol consumption in the last 12 months).
Eighth, volunteer bias refers to a specific bias that can occur when respondents
who volunteered to provide their health data are different in some way from the general
population (Voide et al., 2012). The respondent population was shown to be
representative in terms of age, employment category and gender; however other
differences between respondents and population may exist. Similarly, population bias
should be considered and whilst these respondents were not selected they may have
volunteered their data because they know the researcher (FitzGerald & Hurst, 2017).
There was no way to control for this. The last bias to be considered is survivor bias.
This is where a less well AOP may reduce their exposure to work and unless health
status and exposure are measured over time it is not possible to measure (Austin &
Platt, 2010). This data collection was a point in time survey as part of a cross sectional
analysis.
6.3 Recommendations for Future Research
These recommendations focus on those associated with further research that may
be practically achievable and are based on the evidence presented in this study. The
researcher has no ability to influence recommendations for practice change within the
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Ambulance Service, other than providing evidence based on the literature and the
results of this research and suggesting models that may assist in improving the health
of AOP.
6.3.1 Recommendation One
There is a need for valid and reliable survey instruments in EMS that assess
fatigue, sleep, organisational stressors, the nature of the work, health culture, health
and safety (which includes occupational violence), health status, risk factors, and
modifiable lifestyle factors.
Ten different EMS survey designs related to fatigue and four related to sleep
were identified. Altogether, 37 different studies have been published that observe the
reliability and validity of these instruments. A systematic review of these studies
reported there was limited evidence of the reliability of different surveys in Emergency
Medical Systems and that none of these studies reported on sensitivity and specificity
(Patterson et al., 2018).
Whilst there may be many valid instruments on these elements in the general
populations, it is suggested that they be modified to suit ambulance services by a group
of experts to provide a content validity assessment of the instruments. This could begin
with a group of experts from the Convention of Ambulance Authorities in Australia
and continue with other groups from Paramedics Australasia, The College of
Australian and New Zealand Paramedics and representatives of universities that
currently provide undergraduate paramedicine programs. This approach will increase
the possibility that these instruments will capture the construct better for the target
population.
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6.3.2 Recommendation Two
Sedentary behaviour was reported to be high, poor sleep and fatigue are on the
rise in AOP, fruit and vegetable consumption was low and chronic diseases such as
cardiovascular and asthma are much higher than the Australian population. It is
recommended that further investigation of these factors be conducted so that lifestyle,
work and health status improvement can be initiated. Whilst ambulance specific
instruments are being developed, a longitudinal study could explore the causative
factors. An intervention trial could be conducted to test modifications to lifestyle,
workforce factors and to promote improved health status especially amongst AOP who
are working or have worked shift work.
6.3.3 Recommendation Three
Future longitudinal studies should include biomarker data not unlike that
collected in the Australian Health Survey. These should include biomarkers of CVD,
Type II diabetes, chronic kidney disease, liver function, nutrition status and other
factors such as serum cotinine to estimate the prevalence of active and passive
smoking. These studies should also include measurements such as blood pressure,
height, weight, hip and waist circumference, peak flow values, VO2 max, anaerobic
threshold, strength, flexibility and endurance. Whilst these measures should provide
important information on AOP, workforce data such as hours worked, type of shift,
location, estimated workload, factors influencing job satisfaction, work-related health
culture and occupational violence will help to identify any factors that potentially
impact on the health of AOP.
6.3.4 Recommendation Four
It is recommended that a feasibility study of how entry level medical data can be
obtained as a starting point in a longitudinal study, be investigated. A longitudinal
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Conclusion
study of AOP health should include entry level medical data. As well as requiring
informed consent and ethics approval from multiple institutions, this will require
cooperation of ambulance services through the CAA. There is opportunity for a
university/s that are willing to create an Australian wide partnership with ambulance
services in applying for research funding and creating a centre for health excellence
for AOP.
6.3.5 Recommendation Five
The complex interactions between the models developed in this research
should be explored further using a technique such a Structural Equation Modelling
(SEM) to bring together the multiple models presented in this research to determine
which observed variables are reliable indicators of latent variables (e.g. the health
status of AOP). Binary and ordinal logistic regression analysis has created 25 models
from the AHS 2015 data. Separately, these models give an indication of issues that can
be addressed to potentially improve the health of ambulance operational personnel.
6.3.6 Summary
This research showed that AOP had worse self-reported health, lower rates of
psychological and mental health disorders, higher rates of disabilities, back injuries,
cancer, diabetes, CVD and asthma than the general Australian population. The number
of respondents who reported three or more chronic diseases was 2.5 times that of the
Australian population as was the rate of CVD, and asthma was three times that of the
Australian population. This is the first-time asthma has been reported to be associated
with AOP. Sedentary behaviour was high, and exercise, tobacco smoking and alcohol
consumption rates were low as were fruit and vegetable consumption. Central
adiposity rates were 10% higher than the Australian population. Job satisfaction was
poor, and thoughts of leaving were high.
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Understanding the health of operational personnel in an ambulance service: A mixed methods study
Logistic regression analysis was used to determine predictors of dependent
variables such as health status, chronic disease, organisational symptomology, risk
factors and caring for self. Mental health was theorised as being related to more than
the work that AOP do as part of their employment. As a result, an interconnectedness
model was developed which showed that mental health was primarily influenced by
anxiety, psychological distress and asthma. Secondary influencers included job
satisfaction, systolic blood pressure, a disability, BMI, hay fever, poor self-reported
health and a cancer diagnosis, whilst third level influencers were age, gender (male),
employment type (supervisor/manager), shift work years, poor sleep, station category
(level 5), poor work-related health, thoughts of leaving, diabetes, CVD, alcohol
consumption, fatigue and family stressors. This is a critical finding as it has the
potential to change the way poor mental health of AOP is managed.
Cross tabulation of the AHS 2015 data demonstrated links between poor self-
reported health and workplace factors such as job satisfaction. There appeared to be a
complex link between sleep and fatigue, which was related to alcohol, age, disability,
quantity of shift work years, self-reported health, overweightness and job satisfaction.
The more sleep, the less likely respondents were to report negative associations with
the above variables. Working long hours (>181 hours per month) was associated with
increased fatigue which was in turn associated with poor job satisfaction, work-related
health culture and self-reported health, not getting regular rest breaks and greater levels
of disability. The literature supports a link between poor supervisor support and job
satisfaction. This research showed respondents with poor self-reported health, mental
health disorders and psychological distress were less likely to agree their supervisor
supports them and trust the leadership team. Critically, job satisfaction was linked to
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330
Conclusion
fatigue, anxiety, employment type, family stressors, age, health status and the level of
high school completed.
These results and the outcome of the literature review were presented to nine
individuals from the ambulance service in semi-structured interviews and the
transcribed interviews were analysed using a thematic approach. These interview
results did not contribute to the development of health improvement strategies but did
show that: perceptions between operational and non-operational personnel were
different, the influencers on the health of AOP was little understood and the evidence
base for improving their health is deficient. A complex conceptual model for
understanding the health of AOP was developed followed by a framework that could
be used by an ambulance service for health improvement. The implications for
organisational and regulatory bodies are significant in the context that the
psychological, physiological and psychosocial health of AOP must be looked at as a
system, as this research has shown health issues, not just mental health, to be
significant and warranting immediate attention.
Five recommendations for future research were made which include future
longitudinal studies, the inclusion of biomarker and preemployment medical data in
future longitudinal studies, valid EMS health surveys and immediate attention to health
promotion activities. A peer support model was suggested to improve the advancement
of health promotion and the development of improved safety culture which has been
shown to be related to patient safety and leadership.
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Zahra, A., Lee, E. W., Sun, L. y., & Park, J. H. (2015). Cardiovascular disease and diabetes mortality, and their relation to socio-economical, environmental, and health behavioural factors in worldwide view. Public Health, 129(4), 385-395. doi: http://dx.doi.org/10.1016/j.puhe.2015.01.013Aasa, U., Kalezic, N., Lyskov, E., Ängquist, K.-a., & Barnekow-bergkvist, M. (2006). Stress monitoring of ambulance personnel during work and leisure time. International Archives Of Occupational And Environmental Health, 80(1), 51-59. doi: http://dx.doi.org/10.1007/s00420-006-0103-x
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8 Appendices
8.1 Appendix A: Ethics Approval, Recruitment
Information and Survey
Ethics application - approved - 1400000936
DELETE REPLY ALL FORWARD CONTINUE EDITING DISCARD Mark as unread
QUT Research Ethics Unit Wed 18/02/2015 10:57 AM Inbox To: Gerard Fitzgerald; Tony Parker; Michele Clark; Richard Galeano; ... Cc: Janette Lamb; ... Inbox
1 attachment
UHRECSTANDARDCONDITIONSOFAPPROVAL-HUMANRESEARCH.DOC 44 KB Dear Prof Gerard FitzGerald and Mr Richard Galeano Project Title: Evaluating the health and work-life balance of operational personnel in the Queensland Ambulance Service: Influences, associations and impacts Ethics Category: Human - Low Risk Approval Number: 1400000936 Approved Until: 18/02/2018 (subject to receipt of satisfactory progress reports) We are pleased to advise that your application has been reviewed and confirmed as meeting the requirements of the National Statement on Ethical Conduct in Human Research.
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I can therefore confirm that your application is APPROVED. If you require a formal approval certificate please advise via reply email. CONDITIONS OF APPROVAL Please ensure you and all other team members read through and understand all UHREC conditions of approval prior to commencing any data collection: > Standard: Please see attached or go to http://www.orei.qut.edu.au/human/stdconditions.jsp > Specific: Approval for Study 2 (QAS personnel survey) only Decisions related to low risk ethical review are subject to ratification at the next available UHREC meeting. You will only be contacted again in relation to this matter if UHREC raises any additional questions or concerns. Whilst the data collection of your project has received QUT ethical clearance, the decision to commence and authority to commence may be dependent on factors beyond the remit of the QUT ethics review process. For example, your research may need ethics clearance from other organisations or permissions from other organisations to access staff. Therefore the proposed data collection should not commence until you have satisfied these requirements. Please don't hesitate to contact us if you have any queries. We wish you all the best with your research. Kind regards Janette Lamb on behalf of Chair UHREC Office of Research Ethics & Integrity Level 4 | 88 Musk Avenue | Kelvin Grove p: +61 7 3138 5123 e: [email protected] w: http://www.orei.qut.edu.au
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University Human Research Ethics Committee (UHREC)
Standard Conditions of Approval – Human Research
All ethical approvals are granted subject to the following standard conditions
of approval. These are also available online at: http://www.orei.qut.edu.au/
General Conditions
The research team must:
1. Conduct the project in accordance with your UHREC approved protocol.
2. Conduct the project in accordance with QUT policy, NHMRC / AVCC guidelines and regulations, and the provisions of any relevant State / Territory or Commonwealth regulations or legislation.
3. Respond to the requests and instructions of the University Human Research Ethics Committee (UHREC).
4. Ensure all research participants are provided with the current Participant Information Sheet and Consent Form, unless otherwise approved by the Committee.
5. Report on the progress of the approved project at least annually, and at the completion of the project.
6. (Where the research is publicly or privately funded) publish the results of the project is such a way to permit scrutiny and contribute to public knowledge.
7. Ensure, wherever possible, that the results of the research are made available to the participants.
Concerns, Complaints, Adverse Events and Unexpected Outcomes
Follow Section 5.5.3 of the National Statement which states that: ‘Researchers have a significant responsibility in monitoring approved research as they are in the best position to observe any adverse events or unexpected outcomes. They should report such events or outcomes promptly to the relevant institution/s and ethical review body/ies and take prompt steps to deal with any unexpected risk’.
As such, the research team must, via the Concerns, Complaints and Adverse Events
form:
1. Immediately advise the Research Ethics Coordinator, if any complaints are made, or expressions of concern are raised, in relation to the project.
2. Suspend or modify the project if the risks to participants are found to be disproportionate to the benefits, and immediately advise the Research Ethics Coordinator of this action.
3. Stop any involvement of any participant if continuation of the research may be harmful to that person, and immediately advise the Research Ethics Coordinator of this action.
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4. Advise the Research Ethics Coordinator of any unforeseen development or events that might affect the continued ethical acceptability of the project.
Modifying your Ethical Clearance
The research team must:
1. Convey proposed changes to the Research Ethics Unit for appropriate review and approval, prior to implementation of any proposed change.
2. Submit requests for variations via the Variation Request Form; minor changes will be assessed on a case by case basis.
3. Note that major changes, depending upon the nature of the request, may require submission of a new application.
NOTE: The UHREC may apply additional specific conditions to your
approval. You will be notified of these in your approval email and certificate. You
must ensure all research team members also understand and comply with any specific
conditions of approval.
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Research Team: Mr Richard Galeano PhD student Professor Gerard FitzGerald Principal supervisor Professor Tony Parker Associate supervisor Professor Michele Clark Associate supervisor School of Public Health and Social Work, Faculty of Health, Queensland University of Technology (QUT)
8.1.1 Information Sheet for Participants
This research is being undertaken as part of a PhD at Queensland University of Technology (QUT) by Richard Galeano. QUT Ethics Approval Number 1400000936
The purpose is to develop a comprehensive picture of the health of operational personnel in the Queensland Ambulance Service (QAS), identify factors that influence their health, identify associations between work and lifestyle, and determine how work groups and ambulance organisations may impact positively on the overall health of operational personnel.
You have been invited to participate because you are an operational employee with Queensland Ambulance Service.
This Information Sheet will provide you with important information to assist you with your choice.
Participation Your participation in this research is entirely voluntary. If you do agree to participate, you can withdraw from the project at any time without comment or penalty. Your decision to participate or not participate will in no way impact upon your current or future relationship with QUT or QAS. Your participation will involve completing a survey instrument and a self‐measured body composition. The survey instrument will take 30 minutes of your time. The self‐measured body composition measures will take approximately 15 minutes of your time.
Support Whilst completing the survey, should you experience any distress in reliving your experiences or recognise that you have a health problem you are strongly advised to contact a health professional that may be able assist you with these issues. Support is available through QAS Priority One at 1800 805 980.
Ambulance Health
Survey
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Completing the survey and self‐measures is voluntary. You may choose whether or not to volunteer in this or any part of the AHS 2015. If you choose to participate you may withdraw at any time if you feel unable to continue.
Privacy and Confidentiality Comments and responses are non‐identifiable, governed by the Privacy Act 1988. Any data collected as part of this project is stored securely as per QUT’s management of research data policy.
What are the benefits of participating? Your answers to the survey questions and self‐measures may give you new insights into your health, or may be something you might like to discuss with your doctor. You will also be contributing information that will guide future healthcare policies, guidelines and public health programs that will be relevant to you and your family for years to come. Unidentified information from your responses will be combined with other respondents information to assess the health of operational employees in general – the more people participating, the more accurate this picture will be. This data will enable a wide range of research into the relationship between physical activity and health outcomes for everyone in the ambulance community. This information will be compared with the general population through the Australian Health Survey data and previous surveys on operational employee’s sleep and fatigue. I do not expect to be providing any comparisons and analyses of the combined data until late 2015. Data collections will be conducted in early 2015 with analysis starting mid 2015. Results and discussions will be freely available, published in scientific journals, presented at conferences and at organised station meetings throughout Queensland.
Self‐Measures I am asking you or someone close to you or a co‐worker to measure your height, weight, hip and waist circumference, systolic and diastolic blood pressure. These measures will take approximately 15 minutes to collect. These results can be recorded in the survey instrument where you will also find instructions on accurately recording the body composition data.
Survey The survey instrument is quite large but should only take approximately 30 minutes of your time to complete, and comprises four areas: 1. A health risk component.
2. Self‐measured body composition data.
3. A Personal Interest Component.
4. A Health Culture Audit.
You can access, complete and submit the online version of the survey via QUT’s Key Survey. You have been emailed via Key Survey which has generated an individual URL for each respondent (preferred response method).
OR
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Electronically (it has also been emailed to you via the QAS email system) and to maintain de‐identification, if you choose to email your return please do so to: cedm‐[email protected].
OR
Manually – you can print the survey instrument, complete and return via post to:
Ambulance Health Survey 2015 Centre for Emergency and Disaster Management QUT Kelvin Grove Victoria Park Road Kelvin Grove Q 4059
Returns that are made online are unidentifiable and those returns made by email or post will be separated from the original email/post by an independent person at QUT’s Centre for Emergency and Disaster Management (CEDM), who is not connected to the research, and forwarded on to the researcher. In this way, all respondents remain unidentifiable. YOU SHOULD CONSIDER COMPLETING YOUR SELF‐MEASURES, AND IF A PARAMEDIC PLEASE
GATHER YOUR STATION WORKLOAD FROM YOUR OFFICER IN CHARGE (OIC) BEFORE ATTEMPTING TO COMPLETE THIS SURVEY.
What will happen to my survey response and recorded measures? After the data has been entered into a database and checked for accuracy, any paper results will be stored in a locked file cabinet at QUT for 15 years. Electronic responses will be recorded on a password protected laptop and on a secure QUT server (also password protected). This data will only be accessible by the researcher and a nominated person from QUT, at this stage, the Principal Supervisor.
You may withdraw your consent to participate at any time.
THIS SURVEY IS NOT INTENDED FOR THE PURPOSE OF DIAGNOSING OR TREATING ANY HEALTH PROBLEMS YOU MAY HAVE.
PARTICIPATION IN THIS SURVEY DOES NOT TAKE THE PLACE OF VISITS TO A DOCTOR OR OTHER HEALTH PROFESSIONALS.
Questions / further information about the project If have any questions or require any further information about the project please contact:
Mr Richard Galeano [email protected] 0437 729 735 Professor Gerard FitzGerald [email protected] 0731 383 935 Professor Tony Parker [email protected] 0731 386 173 Professor Michele Clark [email protected] 0731 383 519
Concerns or complaints regarding the conduct of this research The QAS and QUT are committed to research integrity and the ethical conduct of research projects. However, if you have any concerns or complaints about the ethical conduct of this research you may contact the QUT Human Research Ethics Unit on 0731 385 123 or email [email protected] . The QUT Human Research Ethics Unit is not connected with the research project and can facilitate a resolution to your concerns in an impartial manner.
Thank you for helping with this research project and please keep this sheet for your information.
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Subject Title: Evaluating the Health and Work‐Life Balance Of Operational Personnel in The Queensland Ambulance Service: Influences, Associations and Impacts Dear Colleague I am writing to seek your assistance in a program to determine, promote and improve the health status of operational personnel in the Queensland Ambulance Service (QAS). The purpose is to provide a comprehensive picture of the health status and general wellbeing of operational personnel. I am conducting this research at Queensland University of Technology (QUT) as part of my PhD studies and the study has been approved by QUT Human Research Ethics Committee (Approval Number 1400000936). You have been invited to participate as you are an operational person working for the QAS. You have the opportunity in this study to do something that is original and will provide long lasting benefits to operational personnel. However, I do need your assistance by asking you to complete the survey and self‐measures. You can access, complete and submit the online version of the survey via QUT’s Key Survey. You have been emailed via Key Survey which has generated an individual URL for each respondent (preferred response method); or Electronically (it has also been emailed to you via the QAS email system) and to maintain de‐identification, if you choose to email your return please do so to: cedm‐[email protected]; or Manually – you can print the survey instrument, complete and return via post to:
Ambulance Health Survey 2015 Centre for Emergency and Disaster Management (CEDM) QUT Kelvin Grove KELVIN GROVE QLD 4059
Returns that are made online are unidentifiable and those returns made by email or post will be separated from the original email/post by an independent person at CEDM who is not connected to the research and forwarded on to me as the researcher. In this way, all respondents remain unidentifiable.
The information that you need to make an informed decision about your participation in this study is
contained in the attached Participant Information sheet.
Please feel free to ring or email me if you have any questions.
Yours sincerely
Richard Galeano
PhD Student
0437 729 735
Professor Gerard FitzGerald Principal Supervisor 07 3138 3935 [email protected] School of Public Health and Social Work, Faculty of Health Queensland University of Technology
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Ambulance Health Survey 2015 Centre for Emergency and Disaster Management (CEDM) QUT Kelvin Grove KELVIN GROVE QLD 4059
EVALUATING THE HEALTH AND WORK‐LIFE BALANCE OF OPERATIONAL PERSONNEL IN THE
QUEENSLAND AMBULANCE SERVICE: INFLUENCES, ASSOCIATIONS AND IMPACTS
SEEKING YOUR ASSISTANCE Dear Colleague I am writing to seek your assistance in a program to determine, promote and improve the health status of operational personnel in the Queensland Ambulance Service (QAS). The purpose is to provide a comprehensive picture of the health status and general wellbeing of operational personnel. I am conducting this research at Queensland University of Technology (QUT) as part of my PhD studies and the study has been approved by QUT Human Research Ethics Committee (Approval Number 1400000936). You have been invited to participate as you are an operational person working for the QAS. You have the opportunity in this study to do something that is original and will provide long lasting benefits to operational personnel. However, I do need your assistance by asking you to complete the survey and self‐measures. You can access, complete and submit the online version of the survey via QUTs Key Survey. You have been emailed via Key Survey which has generated an individual URL for each respondent (preferred response method); or Electronically (it has also been emailed to you via the QAS email system) and to maintain de‐identification, if you choose to email your return please do so to: cedm‐[email protected]; or Manually – you can print the survey instrument, complete and return via post to:
Ambulance Health Survey 2015 Centre for Emergency and Disaster Management (CEDM) QUT Kelvin Grove Kelvin Grove Q 4059
Returns that are made online are unidentifiable and those returns made by email or post will be separated from the original email/post by an independent person at CEDM who is not connected to the research and forwarded on to me as the researcher. In this way, all respondents remain unidentifiable. The information that you need to make an informed decision about your participation in this study is contained in the attached Participant Information sheet. Please feel free to ring or email me if you have any questions.
Yours sincerely
Richard Galeano PhD Student 0437 729 735 [email protected]
Professor Gerard FitzGerald Principal Supervisor 07 3138 3935 [email protected] School of Public Health and Social Work, Faculty of Health Queensland University of Technology
Reminder
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Dear Colleague, In late May, I emailed and posted to you information on a study that I am conducting about the health status of operational personnel in the QAS. This is paramedic‐led research, supported by QAS, that I am undertaking for my doctoral studies. I wanted to provide an update and once again seek your assistance to help me undertake what I know to be the first comprehensive health review of Paramedics and Emergency Medical Dispatchers worldwide. Completion of the Ambulance Health Survey 2015 (AHS 2015) is central to my data collection ‐ I have re‐attached a copy of the survey with this email for your reference. Over 4000 operational personnel received the survey; so far the responses obtained equate to a 5.6% return rate, far short of the required response rate of approximately 30%. If you are yet to participate, you can complete and return the survey in one of three ways:
1. If you prefer to complete the survey on MS Word, open the attached document, complete the survey, save and email to cedm‐[email protected]
2. Alternatively you can print the survey, complete it by hand and post it to: Ambulance Health Survey 2015 Centre for Emergency and Disaster Management QUT Kelvin Grove Victoria Park Road Kelvin Grove Q 4059
3. For those that have not completed the web‐based version through KeySurvey, I will shortly re‐send the individual links so that you can access and submit the survey online. (If you have already submitted a response via email or post, please do not complete a second copy via KeySurvey) For those of you who have completed the AHS 2015, a BIG thank you! Can I please ask for your further support, by becoming a champion for the AHS 2015, and encouraging and helping your colleagues to respond? Your support and participation is greatly appreciated. Kind regards,
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8.1.2 Ambulance Health Survey (AHS) 2015
This research is being undertaken as part of a PhD at Queensland University of Technology (QUT) by Richard Galeano. The purpose is to develop a comprehensive picture of the health of operational personnel in the Queensland Ambulance Service (QAS), identify factors that influence their health, identify associations between work and lifestyle, and determine how work groups and ambulance organisations may impact positively on the overall health of operational personnel. You have been invited to participate because you are an operational employee with QAS.
Please read the following which provides you with important information to assist you
with your choice to participate or not.
Please note this research has been approved by QUT Human Research Ethics Committee, approval number 1400000936.
Participation
Your participation in this research is entirely voluntary. If you do agree to participate, you can withdraw from the project at any time without comment or penalty. Your decision to participate or not participate will in no way impact upon your current or future relationship with QUT or the QAS. Your participation will involve completing a survey instrument and a self‐measured body composition. The survey instrument will take 30 minutes of your time. The self‐measured body composition measures will take approximately 15 minutes of your time.
Support
Whilst completing the survey, should you experience any distress in reliving your experiences or recognise that you have a health problem you are strongly advised to contact a health professional that may be able assist you with these issues. Support is available through QAS Priority One at 1800 805 980.
Completing the survey and self-measures is voluntary.
You may choose whether or not to volunteer in this or any part of the AHS 2015. If you choose to participate you may withdraw at any time if you feel unable to continue.
Confidentiality Comments and responses are non‐identifiable, governed by the Privacy Act 1988. Any data collected as part of this project is stored securely as per QUT’s management of research data policy.
What are the benefits of participating?
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Your answers to the survey questions and self‐measures may give you new insights into your health, or may identify issues you may like to discuss with your doctor. You will also be contributing information that will guide future healthcare policies, guidelines and public health programs that will be relevant to you and your family for years to come. Unidentified information from your responses will be combined with other respondent’s information to assess the health of operational employees in general – the more people participating, the more accurate this picture will be. This data will enable a wide range of research into the relationship between physical activity and health outcomes for everyone in the ambulance community. This information will be compared with the general population through the Australian Health Survey data and previous surveys on operational employee’s sleep and fatigue. I do not expect to be providing any comparisons and analyses of the combined data until late 2015. Data collections will be conducted in early 2015 with analysis starting mid‐2015. Results and discussions will be freely available, published in scientific journals, presented at conferences and at organised station meetings throughout Queensland.
Self-Measures
I am asking you or someone close to you or a co‐worker to measure your height, weight, hip and waist circumference, systolic and diastolic blood pressure. These measures will take approximately 15 minutes to collect. These results can be recorded in the survey instrument where you will also find instructions on accurately recording the body composition data.
Survey
The survey instrument is quiet large but should only take approximately 30 minutes of your time to complete, and comprises four areas: 5. A health risk component.
6. Self‐measured body composition data.
7. A Personal Interest Component.
8. A Health Culture Audit.
You can access, complete and submit the online version of the survey via QUTs Key Survey. You have been emailed via Key Survey which has generated an individual URL for each respondent (preferred response method) or Electronically (it has also been emailed to you via the QAS email system) and to maintain de‐identification, if you choose to email your return please do so to: cedm‐[email protected] or Manually – you can print the survey instrument, complete and return via post to:
Ambulance Health Survey 2015 Centre for Emergency and Disaster Management QUT Kelvin Grove KELVIN GROVE QLD 4059
Returns that are made online are unidentifiable and those returns made by email or post will be separated from the original email/post by an independent person at QUT’s Centre for Emergency and Disaster Management (CEDM), who is not connected to the research, and forwarded on to the researcher. In this way, all respondents remain unidentifiable.
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YOU SHOULD CONSIDER COMPLETING YOUR SELF‐MEASURES, AND IF A PARAMEDIC GATHER YOUR STATION WORKLOAD FROM YOUR OFFICER IN CHARGE (OIC) BEFORE ATTEMPTING TO
COMPLETE THIS SURVEY.
What will happen to my survey response and recorded measures?
After the data has been entered into a database and checked for accuracy, any paper results will be stored in a locked filing cabinet at QUT for 15 years. Electronic responses will be recorded on a password protected laptop and on a secure QUT server (also password protected). This data will only be accessible by the researcher and a nominated person from QUT, at this stage, the Principal Supervisor. You may withdraw your consent to participate at any time. THIS SURVEY IS NOT INTENDED FOR THE PURPOSE OF DIAGNOSING OR TREATING ANY HEALTH PROBLEMS
YOU MAY HAVE. PARTICIPATION IN THIS SURVEY DOES NOT TAKE THE PLACE OF VISITS TO A DOCTOR OR OTHER HEALTH
PROFESSIONALS.
Concerns or complaints regarding the conduct of this research
The QAS and QUT are committed to research integrity and the ethical conduct of research projects. However, if you have any concerns or complaints about the ethical conduct of this research you may contact the QUT Human Research Ethics Unit on 07 3138 5123 or email [email protected]. The QUT Human Research Ethics Unit is not connected with the research project and can facilitate a resolution to your concerns in an impartial manner. Thank you for helping with this research project and please keep this sheet for your information.
Research Team contacts:
Principal researcher: Richard Galeano [email protected] 04
3772 9735
Principal supervisor: Professor Gerard FitzGerald [email protected] 07 3138 3935 Associate supervisor: Professor Tony Parker [email protected] 07 3138 6173 Associate supervisor: Professor Michele Clark [email protected] 07 3138 3519
8.1.3 Consent Form for the AHS 2015
STATEMENT OF CONSENT
By entering your unique code below, you are indicating that you:
Have read and understood the information document regarding this project.
Have had any questions answered to your satisfaction.
Understand that if you have any additional questions you can contact the researcher.
Understand that you are free to withdraw at any time, without comment or penalty.
Understand that you can contact the Research Ethics Unit on 07 3138 5123 or email [email protected] if you have concerns about the ethical conduct of the project.
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Understand that non‐identifiable data collected in this project may be used as comparative data in future projects. However, your survey will not be linked to any other survey where this unique code is used, when there is a possibility of identifying you.
Agree to participate in the project.
By providing your unique code, you are deemed to have given your consent to participate in this research whilst remaining unidentifiable. However, your information may be compared across other and future surveys that use the same code.
Your code is made up of your mother’s initials and year of birth, e.g. my mother’s initials are ‘MMH’ and her year of birth is 1916 – my unique code is MMH1916
Your unique code:
Date you completed this survey:
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Demographics
GENDER: Male☐ Female☐
AGE: YEARS WORKING IN AMBULANCE:
EMPLOYMENT TYPE: EMPLOYMENT STATUS:
01 EMD ☐ 01 PERMANENT FULL TIME ☐
02 PTO ☐ 02 PERMANENT PART TIME ☐
03 STUDENT PARAMEDIC ☐ 03 CASUAL ☐
04 ACP ☐ 04 OTHER ☐
05 CCP ☐
06 OIC/SUPERVISOR (SO1 TO SO4) ☐
07 MANAGER (M6 TO M8) ☐
08 DIRECTOR ☐
09 EXECUTIVE ☐
SHIFT WORK: Years ‐ If less than one year enter ‘1’. This is a cumulative total of shift work
throughout your working life and may include shift work outside of the QAS. Enter whole numbers only (no decimals and no
text) and take your answer to the closest whole number e.g. 1 year and 4 months is ‘1’ year.
Do you currently work shift work? Yes☐ No☐
If Yes ‐ how long have you currently worked shift work? Years leave blank if
not currently working shift work
If No, how long is it since you stopped working shift work? Years
STATION CATEGORY (1, 2, 3, 4 or 5) will allow me to make comparisons between self‐reported
health and different categories of QAS stations. If you do not know your station category please ask
your Officer in Charge (OIC).
Indicate your Station category here: 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ OR
I do not work at a station ☐→ 01
For the purposes of assessing whether there is an association between self‐reported health and workload
for paramedics, I am interested in the workload (number of cases – Code 1, 2, 3 and 4) at your station for
the 2014 CALENDER YEAR. This is critical information ‐ you should be able to gather this information from
your OIC.
Code 1: Code 2:
Code 3: Code 4:
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If, after trying, you are unable to provide your workload and are willing to provide your station name
I will gather this information: Station Name:
On page 21 of this instrument is a sheet that needs to be completed, where I am asking you or someone you know (e.g. family
member, co‐worker) to measure your height, weight, hip and waist circumference and blood pressure (both systolic and
diastolic) using the included guidelines.
01 WHAT IS YOUR RELATIONSHIP STATUS?
01 Never in relationship ☐
02 In relationship ☐
03 Separated ☐
04 Divorced ☐
05 Widowed ☐
Education
02 WHAT IS THE HIGHEST LEVEL OF PRIMARY OR SECONDARY SCHOOL THAT YOU HAVE COMPLETED?
01 Year 12 or equivalent ☐
02 Year 11 or equivalent ☐
03 Year 10 or equivalent ☐
04 Year 9 or equivalent ☐
05 Year 8 or below ☐
06 Never attended school ☐
03 WHAT IS THE HIGHEST QUALIFICATION THAT YOU HAVE COMPLETED?
01 Trade certificate ☐
02 Diploma ☐
03 Undergraduate Degree ☐
04 Higher degree ☐
05 Other educational qualification
Employment
04 OTHER THAN YOUR QAS OCCUPATION, DO YOU DO OTHER WORK? More than one response is
allowed
01 None ☐
02 Paid employment ☐
03 Own business ☐
04 Voluntary work ☐
05 Home duties ☐
06 Other ☐
05 AT ANY TIME IN THE LAST YEAR HAVE YOU CONSIDERED LEAVING THE AMBULANCE SERVICE FOR OTHER EMPLOYMENT?
01 Yes ☐
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02 No ☐→ 07
06 WHAT IS THE MAIN REASON YOU CONSIDERED LEAVING THE AMBULANCE SERVICE?
More than one response is allowed
01 Family pressures ☐
02 Retirement ☐
03 Health ☐
04 Work pressures ☐
05 Work unit climate ☐
06 Job dissatisfaction ☐
07 Shift work ☐
08 Lifestyle ☐
09 Remuneration ☐
10 Career opportunities ☐
11 Other ☐
07 WHAT KIND OF ROSTER DO YOU WORK?
01 Regular day/afternoon/night shifts ☐
02 Regular day/night shifts ☐
03 Regular day/afternoon shifts ☐
04 Regular day shifts ☐
05 Day and/or afternoon on call ☐
06 Other (please describe)
07 I do not do shift work ☐
Healthy Lifestyle
08 IN GENERAL WOULD YOU SAY YOUR HEALTH IS EXCELLENT, VERY GOOD, GOOD, FAIR OR POOR?
01 Excellent ☐
02 Very good ☐
03 Good ☐
04 Fair ☐
05 Poor ☐
09 DO YOU HAVE CHECK‐UPS WITH YOUR GENERAL PRACTIONER (GP)? Check‐ups may include – asking about your medical history; weighing you; taking your blood pressure; giving advice on how to improve your blood pressure; having other tests done.
01 Yes ☐
02 No ☐
03 Don’t have a GP ☐
04 Don’t know ☐
Mental Wellbeing
10 IN THE LAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL TIRED FOR NO GOOD REASON?
01 All of the time ☐
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02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
11 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL NERVOUS?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
12 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL SO NERVOUS THAT NOTHING COULD
CALM YOU DOWN?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
13 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL HOPELESS?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
14 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL RESTLESS OR FIDGETY?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
15 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL SO RESTLESS THAT YOU COULD NOT
SIT STILL?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
16 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL DEPRESSED?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
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17 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL THAT EVERYTHING WAS AN EFFORT?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
18 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL SO SAD THAT NOTHING COULD CHEER YOU UP? 01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
19 IN THE PAST 4 WEEKS ABOUT HOW OFTEN DID YOU FEEL WORTHLESS?
01 All of the time ☐
02 Most of the time ☐
03 Some of the time ☐
04 A little of the time ☐
05 None of the time ☐
20 IN THE PAST 4 WEEKS HAVE YOU TAKEN ANY MEDICATIONS FOR YOUR MENTAL WELL‐BEING?
01 Yes ☐
02 No ☐ → 22
21 PLEASE INDICATE WHICH OF THE FOLLOWING MEDICATIONS YOU HAVE TAKEN?
More than one response allowed
01 Sleeping tablets or capsules ☐
02 Tablets or capsules for anxiety or nerves ☐
03 Tranquillisers ☐
04 Antidepressants ☐
05 Mood stabilisers ☐
06 Other medication for your mental well‐being – please specify
Pain
22 HOW MUCH BODILY PAIN HAVE YOU HAD IN THE LAST 4 WEEKS?
01 None ☐
02 Very mild ☐
03 Mild ☐
04 Moderate ☐
05 Severe ☐
06 Very severe ☐
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23 DURING THE LAST FOUR WEEKS DID PAIN INTERFERE WITH YOUR NORMAL WORK (INCLUDING
WORK OUTSIDE THE HOME AND HOUSEWORK)?
01 Not at all ☐
02 A little bit ☐
03 Moderately ☐
04 Quite a bit ☐
05 Extremely ☐
Disability
24 DO YOU HAVE ANY OF THE FOLLOWING CONDITIONS? More than one response is
allowed
01 Sight problems not corrected by glasses or contact lenses
☐
02 Hearing problems
☐
03 Speech problems
☐
04 Blackouts, fits or loss of consciousness
☐
05 Difficulty learning or understanding things
☐
06 Limited use of arms or fingers
☐
07 Difficulty gripping things
☐
08 Limited use of legs or feet
☐
09 Any condition that restricts physical activity or physical work e.g. back problems, migraines
☐
10 Any disfigurement or deformity
☐
11 Any mental illness for which help or supervision is required
☐
12 Other
13 No disabilities
☐
Self-Reported Body Mass
25 DO YOU CONSIDER YOURSELF TO BE?
01 Acceptable weight ☐
02 Underweight ☐
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03 Overweight ☐
04 Currently pregnant ☐
Exercise
The next few questions are about walking for fitness, recreation, sport or other reasons (e.g.
household chores, gardening or house work).
26 IN THE LAST 2 WEEKS HAVE YOU WALKED FOR FITNESS, RECREATION, SPORT OR OTHER
REASONS?
01 Yes ☐
02 No ☐ → 29
27 HOW MANY TIMES DID YOU WALK FOR FITNESS, RECREATION, SPORT OR OTHER REASONS IN
THE LAST 2 WEEKS?
Times
28 WHAT WAS THE TOTAL AMOUNT OF TIME YOU SPENT WALKING FOR FITNESS, RECREATION
SPORT OR OTHER REASONS IN THE LAST 2 WEEKS?
Hours minutes
The next few questions are about moderate and vigorous exercise. Please exclude walking that
you may have done for fitness, recreation, sport or other reasons.
29 IN THE LAST TWO WEEKS DID YOU DO ANY EXERCISE WHICH CAUSED A MODERATE INCREASE IN
YOUR HEART RATE OR BREATHING – THAT IS, MODERATE EXERCISE?
01 Yes ☐
02 No ☐ → 32
30 HOW MANY TIMES DID YOU DO MODERATE EXERCISE IN THE LAST TWO WEEKS?
Times
31 WHAT WAS THE TOTAL AMOUNT OF TIME YOU SPENT DOING MODERATE EXERCISE IN THE LAST
TWO WEEKS?
Hours minutes
32 IN THE LAST TWO WEEKS DID YOU DO ANY OTHER EXERCISE WHICH CAUSED A LARGE INCREASE
IN YOUR HEART RATE OR BREATHING THAT IS VIGOROUS EXERCISE?
01 Yes ☐
02 No ☐ → 35
33 HOW MANY TIMES DID YOU DO VIGOROUS EXERCISE IN THE LAST TWO WEEKS?
Times
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34 WHAT WAS THE TOTAL AMOUNT OF TIME YOU SPENT DOING VIGOROUS EXERCISE IN THE LAST
TWO WEEKS?
Hours
minutes
35 THINKING ABOUT ALL THE PHYSICAL EXERCISE THAT YOU DO, WOULD YOU SAY YOU ARE MORE ACTIVE THAN THIS TIME LAST YEAR?
01 Yes ☐
02 No ☐
36 WHEN YOU ARE AT WORK, WHAT BEST DESCRIBES WHAT YOU DO ON A TYPICAL WORK DAY?
01 Mostly sitting ☐
02 Mostly standing ☐
03 Mostly walking ☐
04 Mostly heavy labour or physically demanding work ☐
05 Don’t know ☐
37 HOW MUCH TIME DO YOU SPEND SITTING AT WORK ON A TYPICAL DAY?
Hours
minutes
38 EXCLUDING ANY TIME YOU HAVE ALREADY MENTIONED, HOW MUCH TIME WOULD YOU
USUALLY SPEND SITTING WHILE WATCHING TELEVISION OR USING THE COMPUTER BEFORE OR AFTER WORK?
Hours
minutes
39 HOW MUCH TIME DO YOU SPEND SITTING IN OTHER LEISURE TIME ON A USUAL WORK/WEEK
DAY? e.g. Reading; eating; talking on the phone; listening to music; visiting friends; doing craft
or hobbies; other activities (not including watching television or using a computer)
Hours
minutes
40 ON THE DAYS YOU SPEND AWAY FROM WORK, HOW MUCH TIME DO YOU SPEND SITTING ON A TYPICAL DAY?
Hours
minutes
Smoking
41 DO YOU CURRENTLY SMOKE?
01 Yes ☐
02 No ☐ → 43
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42 DO YOU SMOKE REGULARLY, THAT IS AT LEAST ONCE PER DAY?
01 Yes ☐ → 46
02 No ☐
43 HAVE YOU EVER SMOKED REGULARLY, THAT IS, AT LEAST ONCE PER DAY?
02 Yes ☐
03 No ☐ → 46
44 HOW OLD WERE YOU WHEN YOU STOPPED SMOKING? Years
45 DID YOU STOP SMOKING IN THE LAST YEAR?
01 Yes ☐
02 No ☐
Dietary Behaviours
46 HOW MANY SERVES OF VEGETABLES DO YOU USUALLY EAT EACH DAY? (A standard serve is one
cup of green or orange vegetables, ½ cup dried or cooked beans or lentils or one cup of green
leafy or salad vegetables)
01 1 serve or less ☐
02 2 serves ☐
03 3 serves ☐
04 4 serves ☐
05 5 serves ☐
06 6 serves or more ☐
07 Don’t eat vegetables ☐
08 Don’t know ☐
47 HOW MANY SERVES OF FRUIT DO YOU USUALLY EAT EACH DAY? (A standard serve of fruit is 1
medium piece (apple, banana, orange or pear); 2 small pieces (apricots, kiwi fruit, plum); 1 cup
diced pieces or canned fruit, ½ cup juice; 4 dried apricots or 1 ½ tablespoons of sultanas)
01 1 serve or less ☐
02 2 serves ☐
03 3 serves ☐
04 4 serves ☐
05 5 serves ☐
06 6 serves or more ☐
07 Don’t eat fruit ☐
08 Don’t know ☐
Alcohol
48 HOW LONG AGO DID YOU LAST HAVE AN ALCOHOLIC DRINK?
01 1 week or less ☐
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02 More than 1 week to less than 2 weeks ☐
03 2 weeks to less than 1 month ☐
04 1 month to less than 3 months ☐
05 3 months to less than 12 months ☐
06 12 months ☐
07 More than 12 months ☐
08 Never ☐ → 55
09 Don’t remember ☐
49 ON WHICH DAYS IN THE LAST 7 DAYS DID YOU HAVE DRINKS THAT CONTAINED ALCOHOL?
More than one response is allowed
01 All ☐
02 Monday ☐
03 Tuesday ☐
04 Wednesday ☐
05 Thursday ☐
06 Friday ☐
07 Saturday ☐
08 Sunday ☐
09 I did not drink alcohol in the last seven days ☐ → 51
50 HOW MANY DRINKS DID YOU HAVE IN THE LAST 7 DAYS? Drinks
51 HOW OFTEN DID YOU HAVE AN ALCOHOLIC DRINK IN THE LAST 12 MONTHS?
01 Every day ☐
02 5 to 6 days a week ☐
03 3 to 4 days a week ☐
04 1 to 2 days a week ☐
05 2 to 3 days a month ☐
06 About 1 day a month ☐
07 Less often than 1 day a month ☐
08 Don’t know ☐
The next questions are about the number of standard drinks you have had in the last 12 months
(See standard drink guide on the next page)
52 IN THE LAST 12 MONTHS HOW OFTEN HAVE YOU HAD 5 OR MORE STANDARD DRINKS IN A
DAY? More than one response is allowed
01 Times per week
02 Number of times in the last 12 months
03 ☐ Nil
53 HAS THE AMOUNT OF ALCOHOL THAT YOU USUALLY DRINK INCREASED, DECREASED OR STAYED
ABOUT THE SAME SINCE LAST YEAR?
01 Increased ☐
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02 Decreased ☐
03 Stayed about the same ☐
54 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
ALCOHOL OR OTHER SUBSTANCE ABUSE?
01 I did not stay away from work ☐
02 days
Asthma
55 HAVE YOU EVER BEEN DIAGNOSED WITH ASTHMA?
01 Yes ☐
02 No ☐
56 SYMPTOMS OF ASTHMA INCLUDE COUGHING, WHEEZING, SHORTNESS OF BREATH AND CHEST
TIGHTNESS. HAVE YOU HAD ANY SYMPTOMS OF ASTHMA OR TAKEN TREATMENT FOR ASTHMA
IN THE LAST 12 MONTHS?
01 Yes ☐
02 No ☐→58
57 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
YOUR ASTHMA?
01 I did not stay away from work ☐
02 days
Cancer
58 DO YOU OR ANYONE ELSE REGULARLY CHECK YOUR SKIN FOR ANY CHANGES IN FRECKLES OR
MOLES?
01 Yes ☐
02 No ☐
03 Don’t know ☐
59 HAVE YOU EVER BEEN DIAGNOSED WITH CANCER?
01 Yes ☐
02 No ☐ → 62
60 INCLUDING CANCER WHICH IS IN REMISSION, DO YOU CURRENTLY HAVE CANCER?
01 Yes ☐
02 No ☐→ 62
61 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
YOUR CANCER?
01 I did not stay away from work ☐
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02 days
Cardiovascular/Circulatory
62 INCLUDING ANY CONDITIONS WHICH CAN BE CONTROLED BY MEDICATION, HAVE YOU EVER
BEEN DIAGNOSED WITH A CARDIOVASCULAR OR CIRCULATORY CONDITION?
01 Yes ☐
02 No ☐ → 65
63 WHAT ARE THE NAMES OF THESE CONDITIONS? More than one response is allowed
01 Rheumatic heart disease ☐
02 Heart attack ☐
03 Heart failure ☐
04 Stroke (including after effects of stroke) ☐
05 Angina ☐
06 High blood pressure/hypertension ☐
07 Low blood pressure/hypotension ☐
08 Hardening of the arteries/atherosclerosis/arteriosclerosis ☐
09 Fluid problems/fluid retention/oedema ☐
10 High cholesterol ☐
11 Rapid or irregular heartbeats/tachycardia/palpitations ☐
12 Heart murmurs/heart valve disorder ☐
13 Haemorrhoids ☐
14 Varicose veins ☐
15 Other – specify
64 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
YOUR CONDITION/S?
01 I did not stay away from work ☐
02 days
65 WAS YOUR CHOLESTEROL CHECKED IN THE LAST 12 MONTHS?
01 Yes ☐
02 No ☐
03 Don’t know ☐
66 HAVE YOU HAD YOUR BLOOD PRESSURE CHECKED IN THE LAST 12 MONTHS?
01 Yes ☐
01 No ☐→ 68
02 Don’t know ☐→ 68
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67 IF YOU HAD YOUR BLOOD PRESSURE TESTED IN THE LAST 12 MONTHS, WHAT WAS IT? This
should not be the Blood Pressure that you have measured for this survey.
01 Systolic /Diastolic
02 Don’t remember ☐
Arthritis
68 HAVE YOU EVER HAD GOUT?
01 Yes ☐
02 No ☐
03 Don’t know ☐
69 HAVE YOU EVER HAD RHEUMATISM?
01 Yes ☐
02 No ☐
03 Don’t know ☐
70 HAVE YOU EVER BEEN DIAGNOSED WITH ARTHRITIS?
01 Yes ☐
02 No ☐→ 72
03 Don’t know ☐→ 72
71 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
YOUR ARTHRITIS?
01 I did not stay away from work ☐
02 days
Osteoporosis
72 HAVE YOU EVER BEEN DIAGNOSED WITH OSTEOPOROSIS OR OSTEOPENIA (OSTEOPENIA IS A
MILD LOSS OF BONE DENSITY THAT CAN LEAD TO OSTEOPOROSIS)
01 Yes ☐
02 No ☐→ 75
03 Don’t know ☐→ 75
73 WHICH ONE WERE YOU TOLD YOU HAVE?
01 Osteoporosis ☐
02 Osteopenia ☐
03 Both ☐
74 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
YOUR OSTEOPOROSIS/OSTEOPENIA?
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01 I did not stay away from work ☐
02 days
Diabetes
75 HAVE YOU EVER BEEN DIAGNOSED WITH DIABETES?
01 Yes ☐
02 No ☐
76 HAVE YOU EVER BEEN DIAGNOSED WITH HIGH SUGAR LEVELS IN YOUR BLOOD OR URINE?
01 Yes ☐
02 No ☐
→82
77 WHAT TYPE OF DIABETES WERE YOU TOLD YOU HAVE? More than one response is
allowed
01 Type 1 (Insulin Dependent Diabetes Mellitus/Juvenile Onset Diabetes/Type A) ☐
02 Type 2 (Non‐Insulin Dependent Diabetes Mellitus/Adult Onset Diabetes/Type B) ☐
03 Gestational (pregnancy) ☐
04 Diabetes Insipidus ☐
05 Other – specify
06 Don’t know ☐
78 DO YOU CURRENTLY HAVE DIABETES?
01 Yes ☐
02 No ☐
→ 82
03 Don’t know ☐
→ 82
79 DID YOUR DIABETES/HIGH SUGAR LEVELS INTERFERE WITH YOUR WORK OR OTHER DAILY
ACTIVITIES IN THE LAST 12 MONTHS?
01 Yes ☐
02 No ☐
03 Don’t know ☐
80 ON HOW MANY DAYS IN THE LAST 12 MONTHS DID YOU STAY AWAY FROM WORK BECAUSE OF
YOUR DIABETES/HIGH SUGAR LEVELS?
01 I did not stay away from work ☐
02 days
81 ARE YOU CURRENTLY HAVING INSULIN EVERY DAY?
01 Yes ☐
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02 No ☐
03 Don’t know ☐
Sight and Hearing
82 ARE YOU COLOUR BLIND? 01 Yes ☐
02 No ☐
83 DO YOU CURRENTLY WEAR GLASSES OR CONTACT LENSES TO PARTIALLY CORRECT YOUR SIGHT?
01 Yes ☐
02 No ☐ → 85
84 ARE ANY OF YOUR SIGHT PROBLEMS DUE TO YOUR DIABETES/HIGH SUGAR LEVEL?
01 Yes ☐
02 No ☐
03 Don’t know ☐
85 HAVE YOU ANY HEARING PROBLEMS OR PROBLEMS WITH YOUR EARS THAT HAVE LASTED, OR
ARE EXPECTED TO LAST, FOR 6 MONTHS OR MORE?
01 Yes ☐
02 No ☐ → 87
86 WHAT HEARING OR EAR PROBLEMS DO YOU HAVE? More than one response is allowed
01 Total deafness ☐
02 Deaf in 1 ear ☐
03 Hearing loss/partially deaf ☐
04 Tinnitus ☐
05 Meniere’s Disease ☐
06 Otitis Media ☐
07 Other – specify
08 Don’t know ☐
Long Term Conditions
87 WHICH OF THESE DO YOU HAVE? More than one response is allowed.
01 Hay fever ☐
02 Sinusitis or sinus allergy ☐
03 Other allergy ☐
04 Anaemia ☐
05 Bronchitis ☐
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06 Emphysema ☐
07 Epilepsy ☐
08 Fluid problems/fluid retention/oedema (exclude those due to heart conditions) ☐
09 Hernias ☐
10 Kidney stones ☐
11 Migraine ☐
12 Psoriasis ☐
13 Stomach ulcers or other gastrointestinal ulcers ☐
14 Thyroid trouble/goitre ☐
15 Depression ☐
16 Feeling depressed ☐
17 Back – slipped disc or other disc problems ☐
18 Back problems or back pain ☐
19 Other
20 I do not have any long term conditions ☐
Mental Health
88 DO YOU HAVE A DIAGNOSED MENTAL HEALTH CONDITION?
01 Yes ☐
02 No ☐→ 92
89 WHAT TYPE OF MENTAL HEALTH CONDITION WHERE YOU DIAGNOSED WITH?
More than one response is allowed
01 Depression ☐
02 Post‐Traumatic Stress Disorder ☐
03 Generalised Anxiety Disorder ☐
04 Adjustment Disorder ☐
05 Substance abuse ☐
06 Other
90 DO YOU TAKE ANY MEDICATIONS FOR YOUR MENTAL HEALTH CONDITION/S?
More than one response is allowed
01 Sleeping tablets or capsules ☐
02 Tablets or capsules for anxiety or nerves ☐
03 Tranquillisers ☐
04 Anti‐depressants ☐
05 Mood stabilisers ☐
06 Other medication (specify)
07 No medication ☐
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91 ON HOW MANY DAYS DID YOU STAY AWAY FROM WORK IN THE LAST 12 MONTHS BECAUSE OF
YOUR MENTAL HEALTH CONDITION/S?
01 I did not stay away from work ☐
02 days
Family Stressors
The next few questions are about the things that may have been a problem for you, family or
close friends, during the last 12 months.
92 HAVE ANY OF THESE BEEN A PROBLEM FOR YOU OR ANYONE ELSE CLOSE TO YOU DURING THE
LAST 12 MONTHS? More than one response allowed
01 Serious illness ☐
02 Serious accident ☐
03 Death of a family member or close friend ☐
04 Mental illness ☐
05 Serious disability ☐
06 None of these issues have been a problem ☐
93 HAVE ANY OF THESE BEEN A PROBLEM FOR YOU IN THE LAST 12 MONTHS?
More than one response allowed
01 Divorce or separation ☐
02 Involuntary loss of job ☐
03 Alcohol or drug related problems ☐
04 Witness to violence ☐
05 Abuse or violent crime ☐
06 Trouble with police ☐
07 Gambling problem ☐
08 Other – specify
09 None of these have been a problem ☐
BODY COMPOSITION DATA
Self‐measured results
Height (cm)
Weight (kg)
Hip © (cm)
Waist ©(cm)
Blood Pressure (BP) Systolic
Blood Pressure (BP) Diastolic
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Height: Remove your shoes, bulky clothing, hair ornaments, and unbraid hair that interferes with the measurement. Take the height measurement on flooring that is not carpeted and against a flat surface such as a wall with no molding. Stand with feet flat, together, and against the wall. Make sure legs are straight, arms are at sides, and shoulders are level. Make sure you are looking straight ahead and that the line of sight is parallel with the floor and stand with head, shoulders, buttocks, and heels touching the flat surface (wall). Weight should be measured after the shoes have been removed and any heavy objects (Keys, wallets, loose change, bulky clothing) have been removed. The weight scales used should be reliable and preferably recently calibrated. Hip circumference should be measured at the widest part of the buttocks. The measuring tape should be snug, not restrictive and stretch resistant. You should be standing with feet together and weight evenly distributed across the feet. You should adapt a relaxed posture and the measurement should be taken at the end of expiration.(Nishida et al., 2010) Waist circumference is measured at the midpoint between the lowest palpable rib and the top of the iliac crest. The measuring tape should be snug, not restrictive and stretch resistant. You should be standing with feet together and weight evenly distributed across the feet. You should adapt a relaxed posture and the measurement should be taken at the end of expiration.(Nishida et al., 2010)
Blood pressure should be measured with the participant sitting in a relaxed posture after one minute of deep, slow breathing. Preferably your blood pressure should be taken using a ‘Lifepak 12’ or the ‘Corpuls 3’ Monitor Defibrillator.
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PERSONAL INTEREST
A Personal Interest Survey is an important component of the data gathering and may uncover met
and unmet health needs with QAS operational personnel and will, in formulating recommendations,
ensure that effort in relation to their health is placed where it is not only needed, but where their
interests lay. A workplace, for this survey, is defined as any location (hospital, station, ambulance,
shop, road side, patient’s house, OpCen, office, etc.), that a person may be present at during work
and may include a number of different workplaces throughout a working day.
Breaks
94 DO YOU TYPICALLY TAKE/GET REGULAR BREAKS DURING THE DAY?
01 Yes, most “typical” days ☐
02 No, usually I don’t take/get a break ☐ → Q 96
95 WHAT SORT OF BREAKS DO YOU GET/TAKE? More than one response is
allowed
01 Morning tea break/s
☐
02 Afternoon tea break/s
☐
03 Lunch break/s
☐
04 Station Breaks
☐
05 Hospital breaks
☐
06 Other (specify)
96 IF YOU DON’T TAKE BREAKS OR CAN’T PLAN FOR BREAKS, WHY NOT? (more than one response
is allowed)
01 Pressure to get work done
☐
02 I eat on the run
☐
03 I feel that time spent (e.g. chatting, returning, waiting at hospital, etc.) takes up my “break”
time ☐
04 I just don’t want to
☐
05 I feel guilty
☐
06 Other (specify)
07 I get regular breaks
☐
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97 DOES YOUR WORKPLACE ENCOURAGE YOU TO TAKE A BREAK?
01 Yes
☐
02 No
☐
03 Don’t know
☐
Lifestyle changes
98 WOULD YOU MORE LIKELY BE INVOLVED IN A WELLNESS PROGRAM IF THERE WERE INCENTIVES? 01 Yes
☐ 02 No
☐ 03 Don’t know
☐ As part of their wellness program, some worksites provide gym memberships and/or facilities,
group activities, access to nutritionists, dieticians and exercise physiologists.
99 WOULD YOU USE THESE FACILITIES IF AVAILABLE?
01 Definitely, I would use them ☐
02 It sounds interesting and I’d try to use them ☐
03 It sounds interesting, but I probably wouldn’t use them ☐
04 It’s not something I would use at all ☐
05 Other (specify)
Barriers to Regular Physical Activity
100 HOW OFTEN DO THE FOLLOWING PREVENT YOU FROM GETTING REGULAR PHYSICAL ACTIVITY?
Please choose one answer for each item.
Never Rarely Sometimes Often Very Often
01 Self‐conscious about my looks when I exercise
1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐
02 Lack of interest in exercise or physical activity
1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐
03 Lack of time 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 04 Lack of energy 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 05 Lack of companionship 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 06 Lack of enjoyment from exercise or
physical activity 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐
07 Discouragement 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 08 Lack of equipment 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 09 Lack of good weather 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 10 Lack of skills 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 11 Lack of facilities or space 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 12 Lack of knowledge on how to exercise 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 13 Lack of good health 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐
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14 Fear of injury 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 15 Cost of trainers/coaches 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐
101 PLEASE INDICATE HOW LIKELY YOU WOULD BE TO PARTICIPATE IN HEALTH PROGRAMS DURING
THE FOLLOWING TIMES.
Please choose one answer for each item.
Extremely likely
Somewhat likely
Somewhat unlikely
Extremely unlikely
01 Before work 1 ☐ 2 ☐ 3 ☐ 4 ☐
02 During work 1 ☐ 2 ☐ 3 ☐ 4 ☐
03 After work 1 ☐ 2 ☐ 3 ☐ 4 ☐
04 Rostered days off 1 ☐ 2 ☐ 3 ☐ 4 ☐
Are there any other suggestions you would like to make?
HEALTH CULTURE
A Health Culture Audit looks at how people stay healthy, individual attitudes and personal
perceptions in relation to a healthy lifestyle, job satisfaction and social health whilst working for
the QAS and, how does the organisational culture play a role in supporting healthy employee
lifestyles?
Work Unit Climate
102 MY IMMEDIATE SUPERVISOR SUPPORTS EFFORTS TO ADOPT HEALTHIER LIFESTYLE PRACTICES?
01 Strongly agree ☐
02 Agree ☐
03 Undecided/don’t know ☐
04 Disagree ☐
05 Strongly disagree ☐
103 MY WORK UNIT HAS A SENSE OF COMMUNITY (e.g. people really get to know each other, feel
that they belong and care for each other in times of need)?
01 Strongly agree ☐
02 Agree ☐
03 Undecided/don’t know ☐
04 Disagree ☐
05 Strongly disagree ☐
104 MY WORK UNIT HAS A SHARED VISION (e.g. people feel that the organisation’s conduct is
consistent with personal values and people are clear about how they fit in)?
01 Strongly agree ☐
02 Agree ☐
03 Undecided/don’t know ☐
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04 Disagree ☐
05 Strongly disagree ☐
105 MY WORK UNIT HAS A POSITIVE OUTLOOK (e.g. people enjoy their work, celebrate
accomplishments, adopt a “we can do it” attitude and bring out the best in each other)?
01 Strongly agree ☐
02 Agree ☐
03 Undecided/don’t know ☐
04 Disagree ☐
05 Strongly disagree ☐
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Job Satisfaction
Job satisfaction levels have been shown to be an important factor influencing the health
of workers (Faragher et al., 2005) and worry about work conditions seems to be an
important risk factor for health complaints from workers (Aasa, Brulin, et al., 2005).
106 I LOOK FORWARD TO GOING TO WORK AT THE START OF EVERY BLOCK OF SHIFTS OR THE
START OF EVERY WEEK?
01 Yes ☐
02 No ☐
107 I FEEL POSITIVE AND UP MOST OF THE TIME I AM AT WORK?
01 Yes ☐
02 No ☐
108 I HAVE ENERGY AT THE END OF A WORK DAY TO ATTEND TO THE PEOPLE I CARE ABOUT?
01 Yes ☐
02 No ☐
109 I HAVE ENERGY AT THE END OF THE DAY TO ENGAGE IN PERSONAL INTERESTS?
01 Yes ☐
02 No ☐
110 MOST INTERACTIONS AT WORK ARE POSITIVE?
01 Yes ☐
02 No ☐
111 I HAVE GOOD FRIENDS AT WORK?
01 Yes ☐
02 No ☐
112 I FEEL RECOGNISED AND APPRECIATED AT WORK?
01 Yes ☐
02 No ☐
03 Don’t know ☐
113 MY VALUES FIT WITH THE ORGANISATIONAL VALUES?
01 Yes ☐
02 No ☐
03 Don’t know ☐
114 I TRUST OUR LEADERSHIP TEAM?
01 Yes ☐
02 No ☐
03 Don’t know ☐
115 I RESPECT THE WORK OF MY PEERS?
01 Yes ☐
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02 No ☐
116 I FEEL INVOLVED IN DECISIONS THAT AFFECT MY WORK UNIT?
01 Yes ☐
02 No ☐
117 CREATIVITY AND INNOVATION ARE SUPPORTED?
01 Yes ☐
02 No ☐
03 Don’t know ☐
118 I FEEL INFORMED ABOUT WHAT IS GOING ON?
01 Yes ☐
02 No ☐
03 Don’t know ☐
119 I KNOW WHAT IS EXPECTED OF ME AT WORK?
01 Yes ☐
02 No ☐
120 MY IMMEDIATE SUPERVISOR CARES ABOUT ME AS A PERSON?
01 Yes ☐
02 No ☐
03 Don’t know ☐
121 MY OPINION COUNTS?
01 Yes ☐
02 No ☐
03 Don’t know ☐
122 MY IMMEDIATE SUPERVISOR REVIEWS MY PROGRESS?
01 Yes ☐
02 No ☐
Feelings While Working
Job satisfaction, job performance and fatigue can be shown to be related (Schwartz, 2010). Whilst
it is fully recognised that there are great variations in the level of fatigue and tiredness
experienced as a consequence of work, this next section is aimed at developing an overall
impression about how YOU feel at work while on day shifts (0600/0700 to 1800/1900 – includes
day workers only), evening shifts (any shift that starts either late morning or early afternoon and
finishes at or before midnight), night shifts (1800/1900 to 0600/0700), an on‐call roster (day/on‐
call or day/afternoon on call or a 24 hour roster with and on‐call component) and on days off.
123 HOW OFTEN DO YOU EXPERIENCE ANXIETY AND TENSION WHILST AT WORK?
01 Occasionally ☐
02 Frequently ☐
03 Constantly ☐
04 Never ☐→ Q 125
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124 WHEN YOU DO EXPERIENCE ANXIETY AND TENSION, HOW WOULD YOU DESCRIBE IT?
01 Mild ☐
02 Moderate ☐
03 High ☐
125 HOW OFTEN DO YOU EXPERIENCE FATIGUE WHILST AT WORK?
01 Occasionally ☐
02 Frequently ☐
03 Constantly ☐
04 Never ☐→ Q 136
126 WHEN YOU EXPERIENCE FATIGUE, HOW WOULD YOU DESCRIBE IT?
01 Mild ☐
02 Moderate ☐
03 High ☐
127 WHEN YOU EXPERIENCE FATIGUE DOES YOUR ANXIETY AND TENSION LEVELS:
01 Increase? ☐
02 Decrease? ☐
03 Stay the same? ☐
128 WHEN YOU EXPERIENCE FATIGUE, DURING WHICH PART OF THE SHIFT ARE YOU MOST
AFFECTED?
01 Start ☐
02 Middle ☐
03 End ☐
04 On‐call ☐
129 PLEASE RATE YOUR VULNERABILITY TO FATIGUE WHILST WORKING DAY SHIFTS?
01 Not at all ☐
02 A little ☐
03 Quite a bit ☐
04 Very much ☐
130 PLEASE RATE YOUR VULNERABILITY TO FATIGUE WHILST WORKING EVENING/AFTERNOON
SHIFTS?
01 Not at all ☐
02 A little ☐
03 Quite a bit ☐
04 Very much ☐
05 I do not work evening shifts ☐
131 PLEASE RATE YOUR VULNERABILITY TO FATIGUE WHILST WORKING NIGHT SHIFTS?
01 Not at all ☐
02 A little ☐
03 Quite a bit ☐
04 Very much ☐
05 I do not work night shifts ☐
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132 PLEASE RATE YOUR VULNERABILITY TO FATIGUE WHILST WORKING ON‐CALL?
06 Not at all ☐
07 A little ☐
08 Quite a bit ☐
09 Very much ☐
10 I do not work on‐call ☐
133 DOES YOUR VULNERABILITY TO FATIGUE CHANGE IF, DURING YOUR SHIFT, YOU DO NOT GET A
BREAK?
01 Not at all ☐
02 A little ☐
03 Quite a bit ☐
04 Very much ☐
134 DOES YOUR VULNERABILITY TO FATIGUE CHANGE IF YOU HAVE TO WORK INVOLUNTARY
OVERTIME? (i.e. overtime that occurs because you started a case before shift end, overtime that
occurs because you are the closest/only available car after your shift finish time, overtime that
occurs because someone is running late, shortage of staff, or you have to meet deadlines on an
important project or issue).
01 Not at all ☐
02 A little ☐
03 Quite a bit ☐
04 Very much ☐
135 DOES YOUR VULNERABILITY TO FATIGUE CHANGE IF YOU HAVE TO WORK DURING THE ON‐CALL
COMPONENT OF YOUR ROSTER EVEN THOUGH YOU MAY GET A FULL 10 HOUR FATIGUE BREAK?
05 Not at all ☐
06 A little ☐
07 Quite a bit ☐
08 Very much ☐
136 DO YOU EXPERIENCE INCREASED LEVELS OF ANXIETY AND TENSION AS A RESULT OF HAVING TO
WORK INVOLUNTARY OVERTIME? (i.e. overtime that occurs because you started a case before
shift end, overtime that occurs because you are the closest/only available car after your shift
finish time, overtime that occurs because someone is running late, shortage of staff, or you have
to meet deadlines on an important project or issue).
01 Not at all ☐
02 A little ☐
03 Quite a bit ☐
04 Very much ☐
137 DO YOU EXPERIENCE INCREASED LEVELS OF ANXIETY AND TENSION AS A RESULT OF HAVING TO
WORK DURING THE ON‐CALL COMPONENT OF YOUR ROSTER?
05 Not at all ☐
06 A little ☐
07 Quite a bit ☐
08 Very much ☐
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Hours worked
138 ABOUT HOW MANY HOURS DID YOU WORK IN THE LAST FOUR WEEKS (28 DAYS – this should
include all hours worked in all types of paid employment)?
01 Hours
Work Experiences/Performance
These questions are about the time you spent during your hours of work in the past four weeks.
Please indicate for each question the aspect which comes closest to your own experience.
139 HOW OFTEN WAS YOUR PERFORMANCE HIGHER THAN MOST WORKERS ON YOUR JOB? All of the time Most of the
time Some of the
time A little of the
time None of the
time
☐ ☐ ☐ ☐ ☐ 140 HOW OFTEN WAS YOUR PERFORMANCE LOWER THAN MOST WORKERS ON YOUR JOB?
All of the time Most of the time
Some of the time
A little of the time
None of the time
☐ ☐ ☐ ☐ ☐ 141 HOW OFTEN DID YOU DO NO WORK AT TIMES WHEN YOU WERE SUPPOSED TO BE WORKING?
All of the time Most of the time
Some of the time
A little of the time
None of the time
☐ ☐ ☐ ☐ ☐
142 USING A SCALE OF ZERO TO TEN, WHERE ZERO IS THE WORST JOB PERFORMANCE ANYONE
COULD HAVE AT YOUR JOB AND TEN IS THE PERFORMANCE OF A TOP WORKER, HOW WOULD
YOU RATE YOUR OVERALL JOB PERFORMANCE ON THE DAYS YOU WORKED IN THE LAST FOUR
WEEKS?
Worst Performance
Top Performance
☐ 0
☐ 1
☐ 2
☐ 3
☐ 4
☐ 5
☐ 6
☐ 7
☐ 8
☐ 9
☐ 10
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Understanding the Health of Operational Personnel in an Ambulance Service: A Mixed Methods Case Study
Shift work is associated with sleep deprivation and an interruption of physical, mental and
behavioural cycles. The resultant fatigue is often associated with poor work performance due to
frequent lapses of attention and increased reaction time (Barker & Nussbaum, 2011). The
following questions relate to your sleep habits on day shifts (0600/0700 to 1800/1900 ‐ this applies
to workers who only work days), evening /afternoon shifts (any shift that starts either late
morning or early afternoon and finishes at or before midnight), night shifts (1800/1900 to
0600/0700), the on call component of your roster and on days off.
Sleep Patterns While On Day Shift
143 HOW MANY HOURS DO YOU USUALLY SLEEP PER 24 HOURS WHILE ON DAY SHIFT? Day shifts
include those who work days only e.g. a CSO who works weekends but only does day shifts or a
manager working out of a LASN or central office.
01 Less than 4 hours ☐
02 4 – 6 hours ☐
03 7 – 8 hours ☐
04 More than 8 hours per day ☐
05 I do not work day shifts ☐
144 HOW WOULD YOU TYPICALLY DESCRIBE THE QUALITY OF YOUR SLEEP WHILE ON DAY SHIFTS?
01 Very poor ☐
02 Poor ☐
03 Fair ☐
04 Good ☐
05 Very good ☐
Sleep Patterns Whilst On Evening Shifts
145 HOW MANY HOURS DO YOU USUALLY SLEEP PER 24 HOURS WHILE ON EVENING SHIFT?
01 Less than 4 hours ☐
02 4 – 6 hours ☐
03 7 – 8 hours ☐
04 More than 8 hours per day ☐
05 I do not work evening shifts ☐→ 147
146 HOW WOULD YOU TYPICALLY DESCRIBE THE QUALITY OF YOUR SLEEP WHILE ON EVENING
SHIFTS?
01 Very poor ☐
02 Poor ☐
03 Fair ☐
04 Good ☐
05 Very good ☐
Sleep Patterns While On Night Shift
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Appendices
147 HOW MANY HOURS DO YOU USUALLY SLEEP PER 24 HOURS WHILE ON NIGHT SHIFT?
01 Less than 4 hours ☐
02 4 – 6 hours ☐
03 7 – 8 hours ☐
04 More than 8 hours per day ☐
05 I do not work night shifts ☐→ 150
148 HOW WOULD YOU TYPICALLY DESCRIBE THE QUALITY OF YOUR SLEEP WHILE ON NIGHT SHIFTS?
01 Very poor ☐
02 Poor ☐
03 Fair ☐
04 Good ☐
05 Very good ☐
149 DURING A NIGHT SHIFT HOW MUCH SLEEP WOULD YOU GET DURING THE SHIFT?
Number of hours Hours
Sleep Patterns during the On-Call Component of Your Roster
150 HOW MANY HOURS DO YOU USUALLY SLEEP PER 24 HOURS DURING THE ON‐CALL COMPONENT
OF YOUR ROSTER (e.g. for the 7 days on‐call during the 8 day component of an 8/6 roster)?
01 Less than 4 hours ☐
02 4 – 6 hours ☐
03 7 – 8 hours ☐
04 More than 8 hours per day ☐
05 I do not work on‐call ☐→ 153
151 HOW WOULD YOU TYPICALLY DESCRIBE THE QUALITY OF YOUR SLEEP DURING THE ON‐CALL
COMPONENT OF YOUR ROSTER (e.g. for the 7 days on‐call during the 8 day component of an
8/6 roster)?
01 Very poor ☐
02 Poor ☐
03 Fair ☐
04 Good ☐
05 Very good ☐
152 DURING THE ON‐CALL COMPONENT OF YOUR ROSTER HOW MUCH SLEEP WOULD YOU
TYPICALLY GET WHILST ACTUALLY ON‐CALL (e.g. you are on call for 14 hours per 24 hour period
and get 8 hours sleep on average)?
Number of hours Hours
Sleep Patterns While On Rostered Days Off Between Shifts
153 HOW MANY HOURS DO YOU USUALLY SLEEP PER 24 HOURS WHILE ON DAYS OFF?
01 Less than 4 hours ☐
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Understanding the Health of Operational Personnel in an Ambulance Service: A Mixed Methods Case Study
02 4 – 6 hours ☐
03 7 – 8 hours ☐
04 More than 8 hours per day ☐
154 HOW WOULD YOU TYPICALLY DESCRIBE THE QUALITY OF YOUR SLEEP WHILE ON DAYS OFF?
01 Very poor ☐
02 Poor ☐
03 Fair ☐
04 Good ☐
05 Very good ☐
hank you for the valuable information you have
provided.
Your input, together with other respondents, will allow
me to compose a comprehensive picture of the health
of operational personnel in the QAS, identify factors
that influence their health, identify associations
between work and lifestyle, and determine how work
groups and ambulance organisations may impact
positively on the overall health of personnel.
T
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412
Appendices
8.2 Appendix B: Literature Review Synopsis
Citation Aim Method Limitations Population/Sample Outcome Petrie, K. et al 2018
Assess the prevalence of mental health conditions worldwide
Systematic review Eligibility – quantitative data and at least one of PTSD, depression, anxiety and psychological distress
Peer review English journal & all international work may not have been captured
Publication bias in smaller studies
Currently employed ambulance personnel only
Ambulance personnel including paramedics, EMTs, ambulance workers. EMDs, administrative staff and student paramedics who were not undertaking on-the-job training were excluded
PTSD considerably higher than rates seen in the general population
Maguire, B. et al. 2018
Assess the literature on violence against EMS personnel
Systematic review of literature from 2000-2016. English language 25 out of 2655 studies met criteria.
Other personnel e.g. nurses may have been missed
English language only may have excluded some papers
Differences in workforce
25 studies which included 1006236 personnel, 32579 cases & 1100 injury reports from Spain, Canada, Australia, Poland, U.S., Turkey, India, Sweden, Iranian
Violence is a common risk Lack of interventions Current interventions have no evidence base
Varker, T. et al 20117
Evidence map methodology to assess peer reviewed articles re mental health in Aus. Emergency services personnel
Evidence mapping systematic review of peer reviewed articles between Jan 2011 and July 2016
Maybe subjective, but used experts
Snapshot No assessment of
quality or bias in studies
Only 5 years
Paramedics 45% Police 33% Firefighters 21% 76endS 8853 PARAMEDICS 3541 Police officer All police form 24 stations 3343 student paramedics 5934 firefighters
Need for further research as few studies on suicide, personality, stigma, & preemployment factors that may contribute. No studies on self-harm, bullying, alcohol/substance abuse, barriers to care, family experiences
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Citation Aim Method Limitations Population/Sample Outcome Pek, E. et al. (2015)
Assess physical & mental health of Hungarian amb. Workers using the SF36 Compare ć already known national & international indicators
C/S survey using the SF36 questionnaire*
Literature search limited
Self-report data Cross sectional
design
Return rate of 77% (n = 810) Pre-hospital personnel from 65 amb. Stations in 6 counties in Hungary
↑ health status compared to the GP 76.5% vs. 54.2%) ć with VG/G Limitations due to HS < GP ↑overweightness and obesity than GP (74.4% vs. 55.4%) ↑ smoking than GP (66.5% vs. 45%) ↑ Alcohol consumption than GP (56.8% vs. 19%) ↑ years of labour and secondary jobs influences health status –vly. ↑ workload & shift work related to nutritional habits, free time & evident in rates of BMI
Studnek, J. R. et al. (2010)
Describe key health indicators Quantify health conditions Work conditions ass. ć health conditions & indicators
C/S survey including some items from: BRFSS & LEADS
Cross sectional design Non-respondent bias Healthy worker bias Recall bias
Return rate of 52% (n = 30560) nationally recertified EMTs and paramedics in the U.S.A. Those responses with missing data were removed leaving a RR of 34% (n = 19960)
25.8% were obese 23.5% reported at least one health condition 75.3% did not meet CDC recommendations for physical activity 17% smoked Age, BMI & fitness were ass. ć pre-existing health conditions
Weaver, MD. et al. (2015b)
Examine shift length & its impact on occupational injury & illness
Analysis of administrative data from14 EMS agencies in the U.S.A. with 37 sites: Exposure interest = shift length Outcome interest = occupational injury and illness
Observational study Results not representative of agencies ć < 100 employees Workload of shift unknown Psychosocial norms not known No standard of recording between agencies Confounding variables (age, sex, sleep, health status are unknown
Shift lengths& injury and illness reports were excluded if the task was non-clinical. 966082 work shifts and 950 injury or illness reports from 4382 employees were analysed
Injury rate was lower for shifts <8 hours Shifts >16 & ≤ 24 hours had an injury rate 60% relative to shifts > 8 & ≤ 24 hours. Overall – as shift length increase so does the occupational injury and illness rate.
Patterson, PD Et al. (2016)
Examine the relationship between crew familiarity & work-related injuries
Retrospective cohort design of administrative records to determine crew familiarity and work-related injuries
Observational study Shift workload unknown Confounding variables (age, sex, sleep, health status are unknown
715826 shift & 803 injury records from 14 EMS agencies with 37 bases and a total of 4446 EMS employees.
Less familiarity between crews is ass. ć ↑ incidence of workplace related injury: 1 shift – IR = 33.5/100 FTEs 2-3 shifts – IR = 14.2/100 FTE 4-9 shifts – IR = 8.3/100 FTE ≥ 10 shifts – IR = 0.3/100 FTE
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Appendices
Citation Aim Method Limitations Population/Sample Outcome Weaver, MD. Et al. (2015a)
Determine if weekly work hours is associated occupational injuries.
Analysis of administrative data from14 EMS agencies in the U.S.A. with 37 sites: Exposure interest = weekly work hours Outcome interest = occupational injury and illness
Observational study Secondary analysis of data Other hours worked are not captured OSHA 300 logs are known to underestimate injury rates between 20-70% Confounding variables (age, sex, sleep, health status are unknown
Weekly hours & injury and illness reports were excluded if the task was non-clinical. 966082 work shifts and 950 (using the OSHA form 3ooA log of work-related injuries) reports from 4382 employees were analysed
Weekly work hours were not associated with occupational injury
Crill, M. T. Hostler, D. (2005)
Examine EMT/paramedic strength & flexibility & its relationship to lifestyle and reports of back pain.
C/S Survey of researchers own design primarily to ascertain previous back injury and known risks, lifestyle & health. Assessment included height, weight, BMI, hamstring flexibility & back extension time
Findings may not be able to be generalised to EMS population as participants were diverse. Extension test not designed as a research tool Back strength test does not provide useful info. Re muscle strength or endurance
90 EMS providers attending an EMS conference in Pennsylvania U.S.A. EMS primary occupation 63.7% of time. Volunteers 16.3% Firefighter/EMTs 14.8%
49% had a back injury in the last 6 months – only 39% of these injuries occurred in EMS duties. 52% reported their injury interfered with daily activities. No participants met the CDC guidelines for exercise All participants were taking at least one prescription medication daily Significant rates of obesity reported (actual rate not specified)
Reichard, A. A. Et al (2017)
Identify the characteristics of EMS workers who had treatment in EDs for occupational injuries, illnesses & exposures
EMS workers were identified through the (NEISS-Work) system and a follow back survey by telephone was conducted after informed consent was obtained via letter. Survey developed by a panel of experts, pilot tested, revised &assessed again. Delivered by trained operators using a computer assisted interview technique
Only looked at EMS workers treated in EDs may not be representative Time lapse between injury and call back may have introduced recall bias.
n =572 EMS workers treated in hospital EDs from July 2010 to June 2014 – this equated to a 74% RR amongst EMS workers who were identified and successfully contacted
Injury rate of 8.6/100 FTE > 50% had less than 10 years in service Sprains & strains 40% n=24000 had body motion injuries, (lifting, carrying, transferring a patient or equipment) n = 24400 were exposed to harmful substances followed by & in order: Slips, trips & falls = 14400 Motor vehicle incidents = 7400 Occupational violence = 6400
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Citation Aim Method Limitations Population/Sample Outcome Wiitavaara, B. et al. (2007)
Explore illness and wellness amongst ambulance personnel with MSK symptoms
A grounded theory approach - each interview started broadly and evolved to explore interesting themes. Interviewees were asked to narrate their story and reflect on their understanding of concepts related to health and wellness
Small sample size All men working as ambulance personnel in one ambulance station in Sweden n = 10 based on varied MSK symptoms, age and years of employment
A model characterised by striking a balance through: Wellness through development Accepting & handling illness Encountering illness as an experience and a threat
Airila, A. et al. (2012)
Is work engagement ass. ć work ability after adjusting for age, lifestyle & work-related factors.
C/S study including: WAI questionnaire* Lifestyle questions The Basic Nordic Sleep Questionnaire* Working conditions including workload, job demands, supervisory relations & task resources Utrecht Work Engagement Scale (UWES-9)*
C/S design Self-reported measures Not applicable to other emergency workers
Male Swedish firefighters who had responded to previous survey in 1999. RR = 73% (n = 408).
Work engagement is important in determining work ability amongst other factors which included good sleep, frequent exercise, not to high physical workload & job demands and good task resourcing.
Punakallio, A. et al. (2016)
Describe changes in aerobic capacity at 3 and 13 year follow ups & review the lifestyle factors predicting these changes
Selected by stratified sampling Longitudinal study in 1996, 1999 &2009 Questionnaire – lifestyle, exercise & experience in the fire service Measurement of Vo2 max FPE work ability
High dropout rate especially of older firefighters Self-reported data for questionnaire
Finnish male firefighters Questionnaire: 1996 – 76%, 1999 - 72%, 2009 – 68% Physical Capacity & health: 1996 – 89%, 1999 – 65%, 2009 – 37%. FPE: 1996 – 88%, 1999 – 50%, 2009 – 22%
Annual decline in aerobic capacity in absolute and relative terms was same as GP but in older firefighters aerobic capacity was less than that needed for the job Smoking and > 15 units of alcohol per week were risk factors for decline in aerobic capacity Exercising 4-5 time per week were the best protective factors
Jenkins, N. et al. (2016)
To identify factors that contribute to risk of MSK injury in paramedics
Systematic review using search terms: MSK, workplace, injury, industrial accident, pre-employment physical capacity testing, paramedic, emergency service employee, firefighter & police
N/A Exclusions – did not mention pre-employment physical capacity testing, MSK injuries or not published in English.
30 articles included
Physical fitness, age, gender, equipment and demographic variables e.g. work location key factors in paramedic injuries Little evidence to quantify the relationship between pre-employment physical capacity testing and subsequent injuries in paramedics.
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Appendices
Citation Aim Method Limitations Population/Sample Outcome Mirhaghi, A. et al. (2016)
Identify a personality type that makes an individual suitable for paramedic practice
Systematic literature review using search terms: Personality, trait, rescue, emergency, medical, services, personnel, paramedic and technician using a PRISMA approach
N/A 27 articles were included – 7 U.S.A., 6 Australia, 2 Germany, 2 Slovakia, 1 South Africa, Austria, Canada, Sweden, Hungary, Iran, Norway, Romania, China & U.K. with a total of 9721 participant paramedics
Paramedics scored low for neuroticism EMDs scored high for neuroticism Paramedics scored low for extraversion EMP scored low on openness EMPs scored high for conscientiousness EMPs scored low for agreeableness No clear personality trait was identified for paramedics
Hegg-Doyle, S. et al. (2015)
Identify the impact of work stress on paramedics
Systematic review of the literature - effects of paramedic jobs on health status using the following terms: paramedics, emergency responders, emergency workers, shift workers, post-traumatic symptoms, obesity, stress, heart rate variability, physiological response, BP, CV and cortisol
N/A 42 articles identified – 17 excluded because – not paramedics, no occupational exposure, no physical assessment, death at work – representing 14845 paramedics and one systematic review
Paramedics develop risk factors: Acute & chronic stress ≈ CVD PTSD Other issues include: Sleep problems Obesity No methods are used to monitor the health or CRF of paramedics
Shariat, A. et al (2015)
Identify the side effects of abnormal rhythm of sleeping associated with shift work.
Systematic review using key words: shift work, biological rhythm of sleeping, diseases, physiological issues, physical issues and field study.
Acceptance of papers written in English may have excluded other relevant articles and databases
700 studies identified & 10 finally evaluated. Exclusions – no lit. reviews. Non-longitudinal studies, no clear methodology or results
Consistent issues found include: Fragmented daytime sleep, ↑ risk of CV, gastrointestinal, haematological & immunological disorders, metabolic syndrome, and diabetes and obesity Causal links are described as reduced sleep, altered diet and ↓ physical activity
Orellana , RC. et al. (2016)
Identify the nasal carriage prevalence of MRSA in EMS personnel and the ass. Risk factors
C/S survey including demographics, occupational Hx, health status, hygiene practices & cohabitant characteristics. Swab for MRSA in the anterior nares.
Only tested for nasal MRSA C/S design limits causality & whether MRSA was transient or persistent Small sample size
280 EMS personnel from 84 agencies across Ohio, U.S.A. using probability sampling
4.6% with MRSA (13/280) Risk factors – infrequent hand hygiene, living with someone with a recent staphylococcal infection, poor Hx of hand washing after glove use and EMS workers with open wounds or a recent infection
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Citation Aim Method Limitations Population/Sample Outcome Dropkin, J. et al. (2015)
For EMS workers identify: Work related health problems Risk factors Prevention strategies Examine responses from workers & supervisors
Qualitative research using grounded theory: In depth interviews Focus groups
Small sample size Self-reported Misclassification of health problems from respondents Information bias due to selective memory or team perceptions Selection bias (older participants)
Drawn from 319 amb. from a hospital based amb. Service in NE U.S.A. (convenience sample) 10 teams – 1* paramedic & EMT (n=20) Focus groups = workers (n=68) and supervisors (n = 22) – randomly assigned to make up 40
MSK injures ass. With patient handling Organisational and psychosocial factors such fitness, wages, breaks and shift scheduling ass. with injuries Lack of trust between workers & supervisors identified. Preemployment screening identified as a way of reducing injuries
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Appendices
Citation Aim Method Limitations Population/Sample Outcome Maguire, BJ. (2011)
Review data from the US Department of Labour (DOL) Bureau of Labour Statistics to determine transport related risks for EMS personnel
Review data, rates, relative risks & proportions ass. with EMS injury and fatality transport related accidents. This data does not include patient injuries or fatalities
No data available on workload, driver training, policies, seatbelt use, vehicle speed and type, lights and sirens use, call type
1050 injury cases and 30 fatalities in the U.S.A between 2006-8.
Transport related injury 5 times higher than the national average. Females 53% yet only 27% of workforce. 20% resulted in 31 or more lost work days.
Roberts, H.M. et al.
(2015)
Investigate risk of lower back & upper limb MSK injury& mental injury in paramedics & compare that with social, welfare & nurse professionals
Examine the Compensation Research database in Victoria, Aus. For info. on claimants, demography, industry, occupation, employer, workplace, injury, claim costs and payment summaries.
WC claims likely underestimate the prevalence of work related conditions
WC claims to the Victorian Workers Authority 1/7/2003 – 30/06/2012 – 214355 claims amongst the 6 occupational groups studied.
Paramedic risk of lower back MSC injury and mental injury was 13 time higher than nurses Paramedics had the highest claim rate of 100/1000FTE which was 5 times higher than that of other occupational groups. MSK injures account for approx. half of all claims. Paramedics had an increasing claim rate over the study period against other occupational f groups where there was a decline
Broniecki, M. et al 2012
Examine whether working conditions, physical & psychological factors were ass. ć injuries & claims
On-line C/S survey using a self-developed tool with questions from other validated tools: Uncontrolled environment Exposure to violence Keeping up with clinical competency
C/S study Low response rate Casual factors raised but study type unable to substantiate
RR = 27.5% (n = 243) from an Australian Ambulance Service.
No SSA between recent manual handling training & physical exercise & injury rate. High levels of physical work were SSA related to injury claim. Those who had adequate breaks were SSA < likely to sustain a back, shoulder or neck MSC injury. Casual factors raised include the uncontrolled environment & non-adherence to manual handling techniques.
Hertz, RP. (2004)
Explore the relationship between obesity, CV risk factors and work limitations
Analysis of clinical data from National Health & Nutrition Examination Survey (NHANES) III in the USA 1999-2000
N/A 2381 participants from the 6060NAHNES 111 i.e. employed, had a measurable BMI & > 20 years of age.
Obese workers have the highest prevalence of work limitations as against normal weight workers (6.9% vs 3.0%), hypertension (35.2% vs 8.6%), high cholesterol (36.4% vs. 22.1%), T2DM (11.9% vs 3.2%) & metabolic syndrome %3.6% vs. 5.75%). CVD risk profile & work limitations of obese workers represents that of non-obese workers 20 year older.
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Citation Aim Method Limitations Population/Sample Outcome Broniecki, M. et al 2010
Review studies investigating the prevalence and determinants of MSK disorders in ambulance officers & their limitations
Systematic review using search terms: ambulance personnel, officer & worker, paramedic, EMT, EMS personnel, MSK disorder, injury & disease
N/A MSK disorders- 2 Risk factors for MSK disorders - 2
High prevalence of back, neck & shoulder MSK disorders in paramedics and significant association between individual, physical & psychosocial demands and MSK disorders of the lower back, neck and shoulders of paramedics.
El ahrache , K. Imbeau, D. (2009)
Examines the application of rest allowance models on Static muscular work in manufacturing work stations using 4 models
Work stations selected based on static exertions & postures, no. of workers assigned to stations & MSK symptoms described by most workers. Two workers at each workstation were videoed.
Static rest models Non-ambulance
7 workstations in automotive, printing and plant industries
Rest allowances essential for reducing fatigue level. Information on which model may suit is not available Shoulders in this static model required more rest than other muscle groups.
Maguire, BJ. Smith, S. (2013)
Determine the rates of fatal and non-fatal injuries amongst paramedics in the U.S.A.
Retrospective cohort study using pre-existing fatality and injury data for the U.S. department of Labour –
Exposure to work rates not known Type of work not know Missing data as some paramedics might be classified as firefighters
Injuries that resulted in at least one day of lost time and fatalities from 2003 – 2007. 21690 injuries & 59 fatalities
Sprains & strains most common injury Back 43% ć patient listed as cause in 37% of cases. 55% of assaults were on females yet females were only 27% of workforce Most common events were: overexertion 56%, falls 10%, transport related 9% 59 fatalities – 86% transport,
Tullar, JM. (2010)
Review health and safety interventions to determine their effect on MSK health status
Systematic review using OHS intervention terms, health care setting/worker terms & MSK health outcome terms. These are defined in Table 1 of the article and are too numerous to include here.
Level of evidence found was ‘moderate’
15 of 2918 from the original search. Inclusion criteria were based on a set of questions for quality (19), data extraction items (43) and final selection based on the rating of the evidence - high, and medium-high.
Patient handling training alone & cognitive behaviour training have no effect on MSK health Training alone is not effective Exercise provides positive health benefits Multi component patient handling interventions have a moderate level of evidence in regards a positive impact A moderate level of evidence exists for the use of lifting equipment
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420
Appendices
Citation Aim Method Limitations Population/Sample Outcome Maguire, BJ. et al. (2005)
Describe the injury rate of EMS personnel and compare this with other occupational groups
Retrospective examination of basic demographic and injury data.
Data sets differed in format and some content. Small subset of all EMS employees in the U.S.A. Injury rate may be under reported. Hours worked, and type of work not reported
3 data sets from two anonymous EMS agencies in the U.S.A. (representing 409 FTE EMS workers). EMS 1: Jan 1998 – May 2000 &Oct 2001- July 2004. EMS 2Jan 1999 – Dec 2001. 476 cases were analysed. This EMS agency data was used because of convenience and willingness to participate.
Injury rate 34.6/100 FTE Sprains, strains and tears leading category of injury Backs the most injured body part 57% of cases resulted in lost days Injury rates for EMS workers higher than any other industry in the U.S.A.
Hansen, CD. Et al. (2012)
Compare the health status of amb. Personnel against that of the GP. Describe the work environment & compare against other occupations Examine ass. between physical & psychosocial work env. & 5 health outcomes.
Data taken from Cohort study called Men, Accidents, Risk & safety) MARS using: Demographics quest. 1 General health quest. SF36. 1 item – Nordic Sleep Quest. 10 items – Dutch MSK quest. Short ver. Of Copenhagen Psychosocial Quest.*
c/S design Underestimate of exposures in the work env. due to policy of transferring lower work ability personnel to other jobs.
RR of 43.5% (n = 1691) employees from the largest ambulance company in Denmark (3888 employees) Reference population (n = 14241) using the same health measures as the amb. study
Amb. Personnel had: Half the levels of self-reported poor health (5 vs.10%) Same levels for mental health as GP Higher levels of emotional demands, meaningfulness of & commitment to work. Lower levels of quantitative demands & influence at work Emotional demands ass. ć poorer mental health &sleep quality Performing short, maximal force exertions ↑ the odds of pain in the neck, arm, shoulder & lower back.
Studnek, JR. et al. (2007)
Analyses the association between back problems & individual & work characteristics of EMTs.
Case control analysis of EMTs from the Longitudinal Emergency Medical Technicians Attributes & Demographics Study (LEADS) which is an annual data collection of EMTs in the U.S.A.
Returns on a year-to-year basis are low from LEADS. Possible non-response bias Misclassification of variables from self-reported data.
Practicing EMTs with back problems (n = 104) in 2003 and 2004 against controls without back problems (n = 475) in 2003
Dissatisfaction with current assignment were sig. more likely to report back problems and fair to good fitness as compared to those with excellent fitness.
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421
Understanding the Health of Operational Personnel in an Ambulance Service: A Mixed Methods Case Study
Citation Aim Method Limitations Population/Sample Outcome Sterud, JR. et al. (2006)
Explore health problems, work related & individual health predictors in ambulance personnel
Systematic review including terms: ambulance personnel, worker and men, paramedics, EMTs, EMS personnel with mental health, stress, stress disorders, PTSD, psychological stress, depression anxiety, burnout, physical health & health status
May have missed important articles Reviews came from Western countries and can’t generalise results to other parts of the world.
(n =49)/573 based on inclusion criteria: Original study published in a peer-reviewed journal Published after 1996. USA (21), UK (12), Sweden (4), Netherlands (3), Canada ((3), Aus (2), France (1) Germany (1), NZ (1), Japan (1).
Ambulance workers have: ↑ standardised mortality rate ↑ level of fatal accidents ↑ level of accident injuries ↑ level of early retirement on medical grounds ↑ level of MSK problems – than the GWP
Gore, M. et al. Find the comorbidity prevalence with patients with chronic lower back pain & to evaluate pain related treatment patients & costs ass. with those pts.
Data obtained from a data base covering 98 commercially managed health care plans covering 62 million individuals and more than 4 billion claims. All pts with 2 or more claims ass. ć CLBP during 2007 and 8 with each diagnosis at least 90 days apart
Errors in coding & recording Comorbidities may have been overestimated as they were estimated on one episode of CLBP
(n = 101294) with CLBP and the 1:1 control group matched for age, sex and locality
Those with CLBP have a significantly higher comorbidity burden.\ Frequency of MSK pain (13.0% vs. 6.1%) Depression (8.0% vs. 3.4%) Sleep disorders (10.0% vs. 3.4%) Pain related meds (37.0% vs 14.8%)NSAID 26.2% vs. 9.6%) Tramadol (8.2% vs 1.2%) Health care costs ($8386±$17507 vs. $3607±$10845)
Murray, J. (2013)
Promote mental health and well-being amongst paramedics, EMDs and students.
Part A – basic strategies & theoretical concepts relevant to health & well-being of ambulance personnel & directs the reader to particular readings & exercises as part of the development process. Part B – collection of relevant real-life experiences to clarify, bring relevance to &consolidate key learning concepts.
One part of an educational package.
All paramedics, EMDs and paramedic students in the QAS.
Chap 1 – Oh, I couldn’t do your job Chap 2 – Stress: the good, the bad and that’s life Chap3 – Trauma: shaken to the foundations Chap 4 – Rebuilding foundations: building resilience Chap 5 – The witnessing of grief Chap 6 – Ambulance stories
Blau, G. Chapman, S. (2011)
Examine important items in relation to leaving EMS & relationship to life satisfaction after leaving
C/S survey – annual from 1999 – 2008 including: Where working now? Reasons for leaving (17
items Life satisfaction post
leaving
Large number of not applicable responses ↓ number of reasons for leaving to 9. Memories may be distorted between leaving and doing the survey
478 respondents initially but only 127/1036 (12%) full time paid EMTs in the U.S.A. were included because: only 244 had worked in EMS & of those 45 were part time & 72 were volunteers
Stress/burnout of highest importance for leaving Desire for better pay & conditions had the lowest importance Desire for career change +vly related to life satisfaction post-leaving & -vly related to returning to EMS
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422
Appendices
Citation Aim Method Limitations Population/Sample Outcome Kirby, R. et al. (2011)
Explore coping strategies related to +ve &-ve post trauma outcomes
C/S Survey using following tools: Post Traumatic Growth Inventory* The Impact of Events Scale-Revised* Revised-COPE Inventory*
Other factors contribute to trauma outcomes e.g. personality & length of time since trauma Self-reported measures Generalisation not possible as those ć maladaptive coping strategies usually leave employment
125 operational QLD paramedics including new recruits (n = 26) 22%), paramedics > 4 years experience (n = 33) 28%) paramedic peer support officers (n = 59) 50%)
Adaptive coping strategies: (Self Help - support-seeking, expressing & understanding emotion (Accommodation – Optimism, Acceptance, positive reframing, restraint; & Approach – Active coping & planning) ass. ć +ve changes post trauma. Maladaptive coping strategies (Avoidance – disengagement, denial, blame; & Self-Punishment- self-blame, rumination, suppression) linked to ↑ risk of -ve changes post trauma
Rybojad, B. et al. (2016)
Asses the influence of sociodemographic & occupational factors on PTSD amongst paramedics Suggest preventative strategies
Survey: Demographics Polish version of the Impacts of Events Scale-Revised (IES-R)*
Small population Not all factors that may affect PTSD were measured
100 Polish paramedics – it was not specified how they were selected
PTSD 40% (Females 64.3% vs. males 36.1%) & more so for contract than self-employed paramedics. PTSD was less frequent in those with higher education.
Bennett, P. et al. (2005)
Examine the prevalence & predictors (personal and work factors) of PTSD, anxiety and depression
C/S Survey including: Ambulance Work Stress Questionnaire (AWSQ)* Hospital Anxiety & Depression Scale (HADS)* Post traumatic Diagnostic Scale (PDS)* Cognitive Appraisal Scale(CAQ)*
Cross sectional design & therefore causes, and the direction of the relationship was unable to be determined.
Some respondents (depressed/anxious) may inflate associations between variables
(n = 617) 65% - EMT & Paramedics in a large U.K. based ambulance service serving 3 million people in rural and urban settings.
Troubling memories – 50% PTSD 22% (males 23% Females 15%) Anxiety 23% Depression 9% Key predictors of severity were: Organisational stress, frequency of traumatic events, length of service and disassociation in relation to an incident
Bennett, P. et al. (2004)
Identify the prevalence of PTSD and other emotional disorders among emergency personnel
C/S survey including; The presence of intrusive past or present work-related memories for at least one month completed the: (PDS)* All respondents completed the Hospital Anxiety & Depression Scale (HADS)*
Cross sectional design Self-reported data Low return rate for the PDS completion. Possible response bias - PTSD avoided completing the survey. Those with no problems saw no value in completing survey
All Paramedics & EMTs in one UK NHS Trust ambulance service. 1029 were sent a questionnaire. A return rate of 60% (n = 617) was obtained. Those who reported past or present work related intrusive memories were asked to complete the PDS (n = 293) 47%.
PTSD 22% (Females 15% vs. males 23%) Depression 10% Anxiety 22% Troubling memories in the present 56%
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423
Understanding the Health of Operational Personnel in an Ambulance Service: A Mixed Methods Case Study
Citation Aim Method Limitations Population/Sample Outcome Van der Ploeg, E. Kleber, RJ. (2003)
Determine factors predictive of: Post-traumatic Stress,
fatigue & burnout due to acute and chronic work stressors
Longitudinal survey over 12 months T1 - initial & T2 - at one year Using: Demographic questions Acute & chronic ambulance stressor questions - Table…. QEAW) Self-reported health - Dutch - ‘Impact of Events Scale’* Fatigue - the ‘Checklist Individual Strength’ (CIS)* Maslach Burnout Inventory*
T2 response rate is 39% less than the response rate at T1
T1 – 221/1393 (16%) & T2 156/221 (71%) – including paramedics & drivers from 10 regional amb. services in the Netherlands. These services were randomly drawn from 80 ambulance services.
Chronic work-related stressors were higher than found for a reference group (other health care workers in Holland) 10% had a clinical level of post-traumatic stress, were10% were fatigued to a level where they were at risk of sick leave and work disability & suffered burnout Health symptoms were predictors by lack of support from a supervisor and poor communication.
Regehr, C. et al. (2002)
Examine the relationship between traumatic stress symptoms and functional disability including work leave, PTSS, social support & personality.
C/S survey including: Demographics, exposure to critical incidents & mental health stress (MHS) leave Beck Depression Inventory* PTSD - (IES)* Personality factors influencing chronic PTSD – (BORRTI)* (SPS)* Self-rated support level from family, friends, union and employers – scale of 0 to 5
Cross sectional design Sample size and type (convenience) Not all elements of PTSD were surveyed
(n = 86) 11% - paramedics from the Toronto ambulance service employing 800 paramedics
29.1% report high range PTSS Those who had taken MHS leave in the past were more likely to report PTSS in the high to severe range. Personality style was the strongest predictor of those who took MHS leave and in particular characterised by suspiciousness, hostility & isolation with a tendency toward demanding, controlling and manipulative behaviour in relationships.
Soh, M. et al. (2016)
Investigate different aspects of well-being: Work engagement Job satisfaction job stress And predictors including personality and perceived organisational support.
C/S survey including: Eisenberger Survey of Organisational Support* Patchen’s Perceived Supervisor Support PSS)* Utretch Work Engagement Scale* Job satisfaction – 9 single item specific job aspects Personality – (SIMP)*
Cross sectional design Lack of comparison studies
Ambulance service staff in the U.K (n=490) selected. Response rate determined.
Previous well-being models based on treating -ve symptoms of illness &PTSD Improved well-being model should include +ve aspects such as: job-satisfaction, stress & engagement i.e. what is it about those who see these aspects in a +ve light that can be transferrable to others. Well-being predicted by emotional stability & perceived organisational support
Ul-Haq, Z. Mackay, d.f. Fenwick, E. Pell, JP. (2013)
Systematic review of obesity ass. ć health related QoL & differing relationship ć mental & physical QoL
Systematic review – only those studies that use the SF-36* QoL survey & reported the overall physical & mental component score.
All cross sectional studies Individual data not available and no adjustment for confounders
(n = 8) studies incl. 43086 participants from the U.S.A., Australia, Germany, Canada, Sweden and U.K, populations
↑BMI was ass. ć ↓ physical QoL Class III obese and overweight individuals were ass. ć ↓ mental QoL Obesity + chronic conditions ass. ć deteriorating physical & emotional QoL
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424
Appendices
Citation Aim Method Limitations Population/Sample Outcome Heraclides, AM. et al. (2012)
Examine interaction between work stress & obesity in relation to T2DM in a gender specific manner
Longitudinal study 1985 -2009: Clinical examination and Psychosocial stress – JSQ*
Not noted Phase 1(1985) (n = 10308) to Phase 9 (2009) (n = 6755) employees from 20 U.K. civil service departments
Work stress (high job demands/low job control) ass. ć T2DM in females and a higher risk of T2DM in obese females.
Foss, B. Dyrstad, SM. (2011)
Examine how stress and obesity might be linked & discuss the cause/consequence relationship between the stress response and obesity.
Scientific review N/A N/A Stress as a cause of obesity is well established. Stress as a consequence of obesity is a possibility
Scully, PJ. (2011)
Propose a model of care for emergency services personnel
Outline of an already established program
N/A QAS) peer support program – development, selection, training & operations
Supports the current model of care in the QAS
Regehr, C. (2005)
Explore the experiences of spouses of paramedics and impact of trauma exposure on the spouses of paramedics.
Qualitative study: Semi-structured interviews and included questions on: Family situation Effects of shift work The paramedic role Impact of traumatic events
on the family Social supports and
challenges Strategies for managing
Not able to be generalised for other professions
14 spouses of paramedics from 2 services in Toronto, Canada
Aftermath of traumatic events often can be transferred to the family. The family of paramedics is not included in the support mechanisms offered to paramedics
van Rossum, EFC. (2017)
Examine the hypothesis - continuous loop may exist between obesity, an unhealthy lifestyle, and increased cortisol, which maintains or worsens obesity and may counteract weight loss
Scientific review N/A N/A Long term cortisol levels are higher in obesity however not all obese patients have elevated hair cortisol.
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425
Understanding the Health of Operational Personnel in an Ambulance Service: A Mixed Methods Case Study
Citation Aim Method Limitations Population/Sample Outcome Backé, EM. Et al. (2009)
How often emergency & non-urgent amb. Operations result in a cortisol increase. Examine diurnal cortisol on days with different work tasks in the same personnel Examine strong acute stress in relation to physiological response Measure HR in parallel to cortisol
Mobile Intensive Care Amb. Officers MICA) monitored via Salivary cortisol (4 times/day, at the time the work call was received, after loading the patient, at the time of delivery of the patient, & 30min after delivery) and heart rate (continuous) on consecutive days. Day 1 doing emergency work and day 2 doing non-urgent transport. Subjects rated their physical & emotional strain on a 9-point scale. Two members were in each team & were rated against each other.
Not all salivary cortisol was reliably collected, especially in the mornings Questionnaires concerning situations that may affect stress response need to be included A detailed analysis of the workplace also needs to be undertaken
Mobile Intensive Care Ambulance Officer2 in an urban German ambulance station (n=24). RR not able to be determined.
Cortisol levels rose higher in the morning of emergency work than in the morning of non-urgent work. Stress is not perceived in work situations characterised by routines HR distinguished better than cortisol between operations in emergency or non-urgent transport There were only a few situations with strong endocrine reaction in emergency and non-urgent work – MICA officers were thought to be more conscious about caring for patients rather than concern for their own sensitivities. Differences in endocrine reaction were experienced in teams often with the Driver having increased endocrine reactions
Weibel, L. et al. (2003)
Establish diurnal salivary cortisol levels in a medical dispatch centre. Objectify the belief that EMDs work under high stress conditions.
EMDs sampled every 2/24 from 0900 to 1900 hours during day work. Control subjects matched for age, gender & smoking status and sampled at similar times to EMDs during their leisure time Confounders were matched & all subjects had a medical examination & no medication. Subjective stress perceptions & attitude to work.
Small sample size Results have not been verified by other studies Causes unable to be established Work situations that have the most risk are unknown
8 French EMDs 8 French Laboratory staff
Cortisol markers higher for EMDs on day shift than matched sample during leisure time Among EMDs subjective perception of emotional stress was positively correlated with cortisol concentrations Negative perceptions of the physical work environment were positively correlated to the feeling of poor relationships with hierarchy
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426
Appendices
Citation Aim Method Limitations Population/Sample Outcome Brough, P. (2005)
Compare experiences of organisational & operational work stressors, work-family conflict, neuroticism, job satisfaction, work-related psychological well-being in Police, fire and ambulance populations
C/S survey including: Minor work demands – PDHS* Work-family conflict – Warr’s (1990) 4 item measure of negative job carry over* Neuroticism – Eysenck et al. (1985) Neuroticism Scale* Job satisfaction – Warr et al. (1979) Job Satisfaction Scale* Work well-being – Warr’s (1990) twelve item scale*
Comparison of Police, Fire & Ambulance may not be predictive of results as Amb. Officers have higher education levels & diversity, which are thought to be two mitigating factors for higher well-being
Voluntary participants from Police (n = 229) 46%, Fire (n = 241) 48% & Ambulance (n=253) 51% in N.Z. Overall response rate was 48% EMDs approx. 10% of 253 amb. respondents
Amb. had higher levels of psychological well-being than Police and Fire Fighters Well-being significantly predicted by work-family conflict, neuroticism, & job satisfaction
Arial, M. et al. (2011)
Investigate the respective influence of work characteristics, the effort–reward ratio, and over commitment on the poor mental health of out-of-hospital care providers.
C/S survey including: GHQ-12* Effort Reward Imbalance
Questionnaire* Demographics Work Characteristics Health-related info. Work Practice Analysis 416 hours of observation
in 11 amb. services
Cross sectional design Direction of effect unclear Self- reported data Voluntary & self-selection bias may be present
374/669 (56%) ambulance services personnel from 27 EMS services in French speaking Switzerland. Forty-one were excluded because they did ambulance work only for a small part of their working time, leaving n = 333 (50%).
High perceived effort ass ć low perceived reward is ass. ć poor mental health Low perceived self-esteem ass. ć poor mental health Over-committed females more strongly ass. ć poor mental health Interhospital transfers ass. ć poor mental health Potential psychiatric disorders between 15-20%
Donnelly, EA. et al. (2016)
Examine relationship between amb. stressors & PTSD Determine preferred source of support
C/S Survey using following tools: PTSD Checklist (PCL)* EMS Chronic Stress Scales* Critical Incident Stress Inventory*
Unable to determine if respondents were representative of the amb. service Used a convenience sample
(n = 162) (60%) Canadian paramedics from one county. Nine declined & 8 not included (< 85% of survey completed) Final response rate (n = 145) (54%)
Chronic & CIS sig. ass. ć PTSS Holistic health initiatives mitigate impact of PTSS Interventions ↑ ć peer, family & friend support
Sterud, T. et al. (2008b)
Determine if: Amb stressors are inherently stressful
C/S Survey: conducted ć JSS – general org stress* (NASS)* Population density Basic Character Inventory – personality*
C/S design Response rate low Did not consider nesting of personnel at stations
1180/3200 (37%) -paramedics & managers who described operational amb. work to be > 50% of working time from 19 amb. Regions in Norway
Amb. specific stressors (see Table …) more severe & occur ↑ ʄ than org. stressors More dense population ass. ć increased stressors. Lack of support was ass. ć neuroticism and greater in younger personnel with higher ʄ of stress exposure.
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427
Understanding the Health of Operational Personnel in an Ambulance Service: A Mixed Methods Case Study
Citation Aim Method Limitations Population/Sample Outcome Sterud, T. et al. (2011)
Assess: Importance of amb. & org stressors Individual characteristics related to job satisfaction & health complaints (emotional exhaustion, psychological distress, & MSK pain)
C/S survey conducted ć: Survey tools as in Sterud
(2008b)
Response rate low – 75% less than Sterud (2008b)
Pop. from Sterud (2008b) were offered a follow up survey one year later. 298 (25%) responded.
Lower job satisfaction predicted by ʄ of lack of leader support& severity of challenging job tasks. Emotional exhaustion predicted by neuroticism, ʄ of lack of leader support, time pressure, & physical demands. Psychological distress predicted by neuroticism and lack of co-worker support MSK pain was predicted by ↑ age, neuroticism, lack of co-worker support and severity of physical demands.
Donnelly, E. Siebert, D. (2009)
Systematically examine gaps in the literature and develop a model to serve as a future basis for intervention and research
Systematic review using combinations of the following search terms: (EMT), (EMS), paramedic, paramedical, stress, personnel, first responder, stressor, occupation, injury, occupational hazard, trauma occupational risk, PTSD, morbidity, mortality, assault, alcohol, alcoholism, drug abuse, chemical dependence, measurement, measures, evaluation, & outcome.
Based on Pearlin’s Stress Process Model* & has been adapted to include elements that are regarded as important in EMS e.g. “life events” has been replaced by “critical incident stress”.
Literature relevant to search terms and EMS
80-100% exposure to traumatic events Prevalence of PTSD > 20% High risk drug & alcohol abuse as high as 40% Occupational related stress linked to PTSD and high-risk alcohol and drug use Chronic stressors, insufficient salary, alienated & unsupportive administration, lack of support or conflict with colleagues & interference with non-work-related activities described as being enhanced by shift work
Coxon, A. et al. (2016)
Identify key stressors and their impact on staff well-being of EMDs
Semi-structured interviews – questions developed with the assistance of the Emergency Operations Manager– analysed using an inductive bottom up thematic analysis
Small sample size Potential bias - questions being developed ć manager The opinions are only one NHS operations centres & may not be representative
Purposeful sampling to reflect age, years of experience and breadth of opinion (n = 9) 25% of EMDs in the south of England, U.K. ambulance emergency operations centre
EMDs feel undervalued and overloaded Greater support needed at work to reduce stress and the likelihood of sickness absence. Better and ↑education to build on existing coping strategies
Shakespeare-Finch, Jane Rees, A. Armstrong, D. (2015)
Assess the impact of self-efficacy, and giving and receiving social support on psychological well-being, posttraumatic growth (PTG), and symptoms of PTSD.
C/S including; Stage 1 – traumatic incident? – if yes → Stage 2 C/S ć: Social support - (NGSE)* 2-way (SSS)* Well-being- (PWBS)* PTSD - (IES-R)* Posttraumatic Growth
(PTGI)*
Small sample size\ Cross sectional design Self-reported data may be distorted due to memory.
QAS EMDs Stage 1: (n = 60) 50% Stage 2: (n = 44) 73%
Social support sig. +ve predictor of well-being. & Post Traumatic Growth (PTG), & sig. -ve predictor of PTSD. Self-efficacy was found to sig. +ve predictor of well-being. Shift-work sig. -ve predict of PTSD
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428
Appendices
Citation Aim Method Limitations Population/Sample Outcome Jimmieson, NL. Tucker, MK. Walsh, AJ. (2016)
Develop a more comprehensive understanding of the joint influence of multiple stressors being experienced simultaneously by employees
C/S Survey ć: Psychological strain –GHQ* Burnout - Physical Fatigue Scale* Other items were taken from studies on: time, cognitive &emotional demand, stress remedial intentions & job satisfaction
Response rates from high workload employees were low Cross sectional design
Sample 1: (n = 125) 32% of Regional Hospital & Healthcare Service employees. Sample 2: (n = 93) 35% of Ambulance service employees
High levels of multiple demands exacerbated stress. Reducing the levels of one demand neutralised the effects of the other two demands on stress
Kukowski, C. King, DB. DeLongis, A. (2016)
Examine the moderating role of burnout in the association between post-traumatic stress and sleep quality i.e. high levels of burnout would exacerbate this relationship
C/S Survey including: Maslach Burnout Inventory (MBI)* PTSD Checklist Civilian Version* Pittsburgh Quality of Sleep Index*
Cross sectional design Response rate not reported Self-reported data Source of stress relationship with PTS not determined
87 full time paramedics in Canadian Metropolitan areas recruited via online advertising, internal organisational notifications and word-of-mouth
PTSD ass. ć lower than average sleep quality ↑ burnout exacerbated the effect of PTSD on sleep
Sterud, T. et al. (2008)
Estimate the prevalence of anxiety & depression symptoms & compare to the GP. Investigate somatic complaints and their ass. ć anxiety & depression Investigate the relationship between health complaints & the type of professional help sought
C/S Survey including: HADS* Karolinska Sleep
Questionnaire* Subjective Health
Complaint Questionnaire (SHC)*(Shakespeare-Finch & Scully, 2004; Scully, 2011)
Cross sectional design Causes & direction of the relationship not determined Those with anxiety & depression may have been less likely to be involved in the survey Differences between the two groups makes it hard to make a purposeful comparison
(n = 1180) 37% - officers and managers from the 19 regions in Norway’s Amb. Service. (n = 31987) 35% of the population of Nord-Trondelag County, Norway (only those with full time employment)
Anxiety (Males: 3.5% vs 3.9% GP) & (Females: 4.0% vs. 4.4%GP) Depression (Males: 2.3% vs. 2.8% GP) & (females: 2.9% vs. 3.1% GP). Help seeking in the amb. Sample was < gen. pop. MSC pain was ass. ć help seeking from a chiropractor & only sleep disturbances were ass. ć seeking help from a psychologist Depressive or anxiety → ↑ disturbed sleep, ↑ need for recovery & ↑ somatic complaints
Arial, M. et al. (2010)
Identify work related stressors ass. ć psychiatric symptoms in
police officers Identify work related stressors predictive of psychiatric symptoms in police officers
C/S Survey including: Author determined questions on work stressors Lagner’s scale of psychiatric health symptoms*
Cross sectional design prevents determining causal relationship & the direction of the association Officers with psychiatric symptoms may/may not have been motivated to participate The use of non-professional staff bias
(n=354) 35% of Police Officers in one Swiss canton including police officers, inspectors & non-professional staff.
Psychiatric symptoms 11.9% ass. ć; Lack of support from superior Self-perception of bad quality work Inadequate work schedule High mental demand Age in decades Physical environment complaints
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Citation Aim Method Limitations Population/Sample Outcome Malinauskiene, V. et al. (2011)
Investigate ass. between self-rated health & psychosocial factors at work & everyday life (job demands, job control, social support, workplace bullying, life-threatening events); health behaviours (smoking, alcohol, being overweight, obesity, low physical activity); mental distress; job satisfaction; & sense of coherence (SOC)
C/S survey including: Self-rated health questions Psychosocial job
characteristics – Swedish version of the Karask Demand-Control questionnaire.*
Mental distress – GHQ-12*
3 Item SOC* Lifestyle factors
Cross sectional design Causes not able to be determined Direction of the relationship not able to be determined
(n=748) 54% of randomly selected nurses from three university and six district hospitals in Lithuania from Internal Medicine departments
Poor self-rated health & psychological distress ass. ć job stress & medically certified job absence 60.4% rated their health negatively & this was ass. ć; High job demands, low job control, low
social support at work, life threatening events, low physical activity, overweightness & obesity, mental distress, job dissatisfaction and weak SOC
Hilton, M. F. Whiteford, H. A. (2010)
Investigate the role of psychological distress in workplace accidents Examine the relationship between psychological distress workplace failures, & workplace successes.
C/S survey including: WHO Health and Work
Performance Questionnaire (HPQ)*
Included in the HPQ was the Kessler 6*
Employees self-selected as to those who would participate & companies self-selected as to their participation Cross sectional design does not allow for causality or the direction of the association Blue collar employers were under represented (n = 1411)
(n=60556) 25% from (n = 58) 29% of 201 large government and private sector employers who were invited & were ass. ć 11 industry categories
↑ Psychological distress ass. ć ↑ rates of workplace accidents & failures High Psychological distress OR = 1.4 for a workplace accident. High and moderate psychological distress OR = 2.3 and 2.6 respectively for workplace failure
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Legend:
* = validated survey tool +ve = positive; -ve = negative ↑ = increased ↓ = decreased amb. = ambulance Ass. = associated BORRTI = the Bell Object Relations & reality testing Inventory ć = with CIS = Critical Incident Stress EMDs – emergency medical dispatchers EMS = Emergency Medical System QAS = Queensland Ambulance Service GP = General Population EMY = emergency medical technician IES = Impact of Events Scale HADS = Hospital Anxiety and Depression Scale ʄ = frequency; c/s = cross sectional IES-R = Impact of Events Scale-Revised JSS = Job Stress Survey JSQ = Job Strain Questionnaire NASS = Norwegian Ambulance Stress Survey MSC = musculoskeletal PDHS = Police Daily Hassle’s Scale NGSE = New General Self Efficacy Scale pop. = population PDS = Posttraumatic Diagnostic Scale PTGI = Posttraumatic Growth Inventory PTG = Post Traumatic Growth PTSS = Post Traumatic Stress Symptomology PTSD = Post Traumatic Stress Disorder QEAW = Questionnaire on the Experience & assessment of Work PWBS = Well-being-Psychological Support Scale Sig. = significant QoL = quality of life SPS = Perceptions of Social Support Scale SIMP = Single Item Measure of Personality T2DM = Type 2 Diabetes Mellitus SSS = Social Support Scale BFRSS = Behavioural Risk Factor Surveillance System LEADS = Longitudinal EMT Attributes & Demographics Study FCE = Functional capacity Evaluation Env = environment GWP = General Working Population
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8.3 Appendix C Associations, Effects and Odds Ratio Tables
Table 8.3-1 Station Classification
Station Classification
Description
One Single officer station (day shift/on-call – single officer response)
Two Two officer stations (day shift/on call – single officer response)
Three Three officer stations (day/evening shift/on-call – part of the time is a two-officer response)
Four Up to 10 officers (day/evening/ on-call – two officer response)
Five Minimum 17 officers running two officer response 24 hours per day – some of these stations also have an on-call roster built in to the 24-hour roster.
Non-station Does not work at a station; 83 EMDs, 38 OIC/Supervisors who do not work at stations, 23 ‘M’ scale (managers), one director and one executive.
Table 8.3-2 Other Associations with Decreasing Self-Reported Health
Gender Issue Chi-Square Tests
Male & female Moderate bodily pain χ² (20, n = 628) = 61.844, p = .000
Male & female Bodily pain interferes with work χ² (16, n = 663) = 60.956, p = .000
Female Arthritis χ² (8, n = 241) = 17.106, p = .029
Female Asthma χ² (4, n = 241) = 14.349, p = .006
Male & female Sight & hearing disabilities χ² (24, n = 663) = 39.631, p = .023
Male & female Cardiovascular disease χ² (4, n = 663) = 21.005, p = .000
Male Diabetes χ² (4, n = 422) = 18.997, p = .001
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Table 8.3-3 Mental Health Conditions vs. Job Satisfaction
Males with diagnosed mental health condition tend not to:
Look forward to going to work χ² (1, n = 422) = 9.055, p = .003
Feel positive at work χ² (1, n = 422) = 5.181, p = .023
Have energy for people cared about χ² (1, n = 422) = 6.477, p = .011
Have energy for personal interests χ² (1, n = 422) = 6.875, p = .009
Report interactions at work to be positive χ² (1, n = 422) = 12.933, p = .000
Personal values fitting organisational values χ² (2, n = 422) = 8.417, p = .015
Feel involved in decisions about workplace χ² (1, n = 422) = 4.342, p = .037
Know what is expected at work χ² (1, n = 422) = 11.289, p = .001
Immediate supervisor cares about them as a person
χ² (2, n = 422) = 6.265, p = .044
Table 8.3-4 Personal and Family Stressors
Problem/s for self, family or close friends – more than one response was allowed
Problem/s for self – more than one response was allowed
AP% Resp% AP% Resp%
Death of family member or close friend
18.8 24.0 Divorce or separation
6.4 6.2
Serious illness 15.8 20.1 Witness to violence
1.8 5.6
Mental illness 7.3 17.9 Abuse or violent crime
1.9 3.6
Serious accident 3.5 3.8 Alcohol or drug related
4.7 2.9
Serious disability 2.7 2.6 Gambling 1.5 0.9
Involuntary loss of job
3.8 0.8
Trouble with police
2.5 0.6
17.5% of respondents reported one or more of the above problems
Abbreviations: AP = Australian population, Resp = Respondent
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Table 8.3-5 Disability vs. Employment Type
% of Employment Type
Type n % EMD Operational Mgrs.
Sight Problems 30 4.5 3.6 4.5 8.0
Hearing Problems 53 8.0 7.3 7.7 16.0
Speech Problems 2 0.3 0.0 0.3 0.0
Blackouts, Fits, LOC 2 0.3 1.2 0.2 0.0
Difficulty Learning 24 3.6 4.8 3.4 4.0
Limited use of arms 9 1.4 1.2 1.3 4.0
Difficulty griping 13 2.0 2.4 2.0 0.0
Limited use of legs 6 0.9 1.2 0.7 4.0
Conditions restricting work activity 134 20.2 30.5 18.3 28.0
Disfigurement 5 0.8 0.0 0.9 0.0
Mental Illness–needs help/
supervision
19 2.9 2.4 3.1 0.0
Total 249 46.9 57.6 42.4 64.0
Table 8.3-6 Types of Cardiovascular Disease - Respondents
Typ
e
Hyp
erte
nsi
on
Hig
h C
hole
ster
ol
Rap
id/I
rreg
ula
r H
B
Oth
er
Hea
rt m
urm
urs
Hea
rt a
ttac
k
Ath
eros
cler
osis
Str
oke
Hae
mor
rhoi
ds
Hyp
oten
sion
An
gin
a
Rh
eum
atic
hea
rt
Hea
rt f
ailu
re
Flu
id r
eten
tion
Var
icos
e ve
ins
Tot
al
n 49 30 22 12 7 6 5 3 3 2 2 1 1 1 1 82
% 7.4 4.5 3.3 1.8 1.1 0.9 0.8 0.5 0.5 0.3 0.3 0.2 0.2 0.2 0.2 12.4
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Table 8.3-7 Self-Reported Overweightness & Health Status Indicators
Males overweight Females overweight
↑ K10 score χ² (9, n = 422) = 40.144, p = .000
Arthritis χ² (4, n = 241) = 12.777, p = .012
Asthma χ² (3, n = 422) = 17.912, p = .000 χ² (12, n = 54) = 58.611, p = .000
Bodily Pain χ² (15, n = 422) = 432.963, p = .000
Cancer χ² (3, n = 422) = 12.444, p = .006
Cardiovascular χ² (3, n = 422) = 9.377, p = .025
Diabetes χ² (3, n = 422) = 27.142, p = .000
Table 8.3-8 Fruit & Vegetable Consumption - Respondents
Fruit n % Vegetables n %
1 serve or less 255 38.5 1 serve or less 139 21.0
2 serves 263 39.7 2 serves 227 34.2
3 serves 100 15.1 3 serves 156 23.5
4 serves 26 3.9 4 serves 81 12.2
5 serves 8 1.2 5 serves 33 5.0
6 serves 4 .6 6 serves 23 3.5
Don’t eat fruit 5 .8 Don’t eat fruit 3 .5
Don’t know 2 .3 Don’t know 1 .2
Total 663 100 Total 663
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Table 8.3-9 Fruit & Vegetables vs. Health & Works Status Indicators
Element Consequence Males Females
Veg↓ K10↑ χ² (21, n = 422) = 43.021, p = .003
χ² (15, n = 241) = 34.271, p = .003
Veg ↑ Arthritis ↓ χ² (7, n = 422) = 21.595, p = .003
No veg Cancer more likely
χ² (7, n = 422) = 17.046, p = .017
Fruit ↓
Bodily Pain ↑ χ² (35, n = 422) = 113.647, p = .000
Fruit ↑ CV ↓ χ² (5, n = 241) = 16.495, p = .006
Fruit ↑ SWY ↑ ……χ² (42, n = 663) = 59.780, p = .037……
Fruit ↑ Fatigue ↓ χ² (21, n = 422) =43.723, p = .003
Fruit ↑ Obesity↓ χ² (21, n = 422) = 115.896, p = .000
Fruit ↑
Veg ↑
YIA ↑ χ² (30, n = 241) = 139.983, p = .000
Fruit ↑
Veg ↑
BP ↓ ……χ² (14, n = 644) = 32.839, p = .003……
Abbreviations: Veg = vegetables; CV = Cardiovascular or circulatory; SWY = Shift
work years; BP = Blood pressure, SSAs = Statistically Significant Associations
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Table 8.3-10 Alcohol Consumption – Respondents
Every day
5-6 days/wk
3-4 days/wk
1-2 days/wk
2-3 days/ mth
About 1 day/ mth
< 1 day/mth
Don’t know
EMD 0.0% 6.3% 10.1% 19.0% 17.7% 17.7% 21.5% 7.6%
PTO 0.0% 13.3% 6.7% 13.3% 40.0% 6.7% 13.3% 6.7%
Student 0.0% 7.7% 7.7% 7.7% 15.4% 7.7% 53.8% 0.0%
ACP 0.3% 3.3% 18.9% 25.1% 22.6% 8.9% 19.2% 1.7%
CCP 0.0% 6.8% 18.3% 36.4% 15.9% 11.4% 11.4% 0.0%
Supervisor 0.9% 6.3% 22.3% 25.7% 11.6% 8.0% 12.5% 2.7%
Manager 0.0% 17.4% 30.4% 17.4% 4.2% 4.3% 21.7% 4.3%
Total 0.3% 5.3% 18.2% 26.3% 19.2% 9.7% 18.4% 2.6%
Legend: EMD, operational Personnel, supervisors/managers
Table 8.3-11 Sleep & Other Statistically Significant Associations
Element Consequence Males Females Mental health ↓ ↓ hours of sleep
Poor sleep ↑ χ² (3, n = 422) = 15.739, p = .001 χ² (21,
Bodily Pain ↑ ↓ hours of sleep Poor sleep ↑
χ² (15, n = 422) = 46.908, p = .000
Cancer Hours of sleep ↓ χ² (3, n = 422) = 10.430, p = .015
Cardiovascular Poor sleep χ² (4, n = 422) = 14.337, p = .006
CCPs, Managers
Poor sleep ……χ ² (24, n = 462) = 36.351, p = .049……
Constant fatigue
Hours of sleep ↓ χ² (9, n = 422) = 34.051, p = .018
Leaving ↓ hours of sleep Poor sleep ↑
χ² (4, n = 422) = 11.668, p = .009
Positive job satisfaction
Hours of sleep ↑ Poor sleep ↓
χ² (8, n = 422) = 18.149, p = .020
Waist-hip >0.81♀/0.91♂
Hours of sleep ↓ ……χ² (6, n = 520) = 16.125, p = .013……
Smoking Hours of sleep ↓ χ² (3, n = 663) = 8.239, p = .041
Sitting hours ↑ Hours of sleep ↓ χ² (9, n = 373) = 18.863, p = .028
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Table 8.3-12 Work-Related Health Culture Responses
Question
Agree Undecided Disagree
Male n/%
Female n/%
Male n/%
Female n/%
Male n/%
Female n/%
1 (SS) 127/19.2 85/12.8 180/27.1 110/16.6 115/17.3 46/6.9
2 (Com) 264/39.8 164/24.7 71/69.6 31/30.4 87/13.1 46/6.9
3 (SV) 175/26.4 89/14.1 91/13.7 72/10.9 156/23.5 130/19.6
4 (PO) 211/31.8 110/16.6 69/10.4 44/6.6 142/21.4 87/13.1
Abbreviations: SS = supervisor support, Com = sense of community, SC = shared vision, PO = positive outlook
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Table 8.3-13 Job Satisfaction Scale & Responses
Question n (Yes)
% (Yes)
1. I look forward to going to work 367 55.4
2. I am positive most of the time at work 517 78.0
3. I have energy at the end of the day for people cared about
376 56.7
4. I have energy at the end of the day for personal interests
324 48.9
5. Most interactions at work are positive 555 83.7
6. I have good friends at work 541 81.6
7. I feel recognised and appreciated at work 302 45.6
8. My values fit with the organisational values 438 66.1
9. I trust our leadership team 235 35.4
10. I respect the work of my peers 613 92.5
11. I feel involved indecisions that affect my work unit 263 39.7
12. Creativity and innovation are supported 192 29.0
13. I feel informed about what is going on 298 44.9
14. I know what is expected of me at work 608 91.7
15. My immediate supervisor cares about me as a person 379 57.1
16. My opinion counts 241 36.3
17. My immediate supervisor reviews my progress 430 64.9
Overall Job Satisfaction Score 53 8.0
Legend: Positive; Negative
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Table 8.3-14 Job Satisfaction vs. Increased Alcohol Consumption
Those with increased alcohol are less likely to:
Feel positive χ² (2, n = 647) = 15.363, p = .000
Energy - cared about χ² (2, n = 411) = 7.910, p = .019
Interaction work positive χ² (2, n = 411) = 17.368, p = .000
Recognised and appreciated χ² (4, n = 647) = 14.296, p = .006
Personal vs organisational values χ² (4, n = 647) = 10.899, p = .028
Trust the leadership team χ² (4, n = 647) = 12.826, p = .012
Creativity and innovation χ² (4, n = 236) = 9.727, p = .045
Knowing what is expected χ² (2, n = 411) = 8.249, p = .016
Abbreviations: SSA = Statistically Significant Association
Table 8.3-15 Job Satisfaction vs. Bodily Pain
Males who report bodily pain are less likely to:
Look forward to work χ² (5, n = 422) = 16.362, p = .006
Be positive at work χ² (5, n = 422) = 22.071, p = .001
Have energy – people cared about χ² (5, n = 422) = 16.362, p = .006
Have energy – personal interests χ² (5, n = 422) = 14.150, p = .015
Have positive interactions at work χ² (5, n = 422) = 21.062, p = .001
Have good friends at work χ² (5, n = 422) = 11.525, p = .042
Feel recognised and appreciated χ² (10, n = 422) = 35.590, p = .000
Personal values fit organisational values χ² (10, n = 422) = 33.381, p = .000
Respect the work of peers χ² (5, n = 422) = 19.909, p = .001
Feel involved in decisions χ² (5, n = 422) = 18.080, p = .003
Creativity and innovation is supported χ² (10, n = 422) = 25.359, p = .005
Report knowing what is expected at work χ² (5, n = 422) = 18.496, p = .002
Immediate supervisor cares about them as a person
χ² (10, n = 422) = 18.534, p = .047
Feel their opinion counts χ² (10, n = 422) = 19.868, p = .031
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Table 8.3-16 Job Satisfaction vs. Disability
Males who have a disability are less likely to:
Look forward to work (sight) χ² (6, n = 422) = 20.541, p = .002
Be positive at work (hearing & sight) χ² (6, n = 422) = 13.610, p = .034
Have energy – people cared about (hearing & speech)
χ² (6, n = 422) = 18.875, p = .004
Have energy – personal interests (hearing & speech)
χ² (6, n = 422) = 23.670, p = .001
Have positive interactions at work (hearing, sight &speech)
χ² (6, n = 422) = 21.026, p = .002
Feel recognised and appreciated (hearing & speech)
χ² (12, n = 422) = 26.121, p = .010
Have personal values fit organisational values (hearing)
χ² (12, n = 422) = 23.219, p = .026
Respect the work of peers (speech) χ² (6, n = 422) = 23.167, p = .001
Feel creativity and innovation is supported (hearing)
χ² (12, n = 422) = 21.730, p = .041
Feel informed (sight, hearing &speech) χ² (12, n = 422) = 21.674, p = .041
Report knowing what is expected at work (hearing)
χ² (6, n = 422) = 23.459, p = .001
Females who have disability are less likely to:
Have good friends at work χ² (4, n = 241) = 13.722, p = .008
Females & males who have a disability are less likely to:
Feel involved in decisions (hearing &speech)
χ² (6, n = 663) = 15.458, p = .017
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Table 8.3-17 Regular Rest Breaks and Positive Job Satisfaction Associations
Associations Males Females
↑ Job satisfaction
……χ² (2, n = 663) = 8.231, p = .016……
↓ fatigue χ² (3, n = 422) = 45.913, p = .000
↓ Barriers to exercise
χ² (6, n = 422) = 24.543, p = .000
Performance higher
χ² (4, n = 422) = 13.649, p = .009
χ² (4, n = 241) = 14.847, p = .005
↑ sleep quality ……χ² (4, n = 462) = 10.962, p = .027……
↑hours of sleep χ² (4, n = 422) = 23.137, p = .000
χ² (4, n = 241) = 20.095, p = .000
Sense of community
χ² (4, n = 422) = 25.697, p = .000
χ² (4, n = 241) = 13.094, p = .011
Shared vison χ² (4, n = 422) = 29.402, p = .000
Positive workplace
χ² (4, n = 422) = 34.763, p = .000
Table 8.3-18 Irregular Rest Breaks & Negative Associations
More likely Males Females
Health status ↓ χ² (4, n = 422) = 16.4892, p = .002
K10 score↑ χ² (3, n = 422) = 25.312, p = .000
Bodily Pain ↑ χ² (5, n = 422) = 14.037, p = .015
Thoughts of leaving↑
χ² (1, n = 422) = 11.725, p = .000
↑ sitting hours
χ² (3, n = 207) = 12.773, p = .005
……CCPs χ² (3, n = 41) = 12.483, p = .006……
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Table 8.3-19 Lack of Time or Energy – Associations
Element Barrier
(lack of:)
Males Females
Asthma Time χ² (6, n = 422) = 15.635, p = .016
Overweight Time & energy
χ² (18, n = 422) = 34.802, p = .01
χ² (8, n = 229) = 21.211, p = .000
Bodily Pain χ² (25, n = 422) = 39.085, p = .036
χ² (16, n = 241) = 35.522, p = .003
K10 ↑ Time & energy
χ² (15, n = 422) = 60.173, p = .000
χ² (9, n = 27) = 17.991, p = .000
Leaving Time & energy
……χ² (5, n = 663) = 23.480, p = .000……
↑SWY Time …….χ² (36, n = 663) = 54.200, p = .026……
Abbreviations: SSAs = Statistically Significant Associations
Table 8.3-20 Workplace Wellness Programs Associations
Job satisfaction Males Females
Recognised & appreciated at work
……χ² (4, n = 663) = 13.027, p = .011……
Personal values fit with organisational values
χ² (4, n = 422) = 13.543, p = .009
χ² (4, n = 241) = 17.201, p = .002
Creativity & innovation supported
χ² (4, n = 422) = 9.475, p = .050
Work-Related Health culture Males Females
Sense of community χ² (8, n = 422) = 17.595, p = .024
Shared vision χ² (8, n = 422) = 19.276, p = .013
Positive outlook χ² (8, n = 422) = 28.850, p = .000
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8.4 Appendix D: Regression Plan
Regression Analysis Plan – determining effect size on known
associations to determine which independent variables to include in
Regression analysis
Analyze → Descriptive statistics → Crosstabs
Dependent variables → row, Independent variables → column, Confounders →
Layer 1 of 1
Statistics → Chi‐square, Phi and Cramer’s V
Cell: Counts → Observed, Percentage → Row, Residuals → adjusted standardised
2*2 Tables use Phi: effect criteria are: small = 0.10, medium 0.30, large 0.50. Where
the value of Phi and Cramer’s V are the same, Phi is reported, and those
independent variables are crossed out where an effect size is less the ‘medium’.
Where the effect is ‘medium’ or ‘large’ but it is not statistically significant, the
independent variable is also crossed out. (Cohen 1988)
Greater than 2*2 tables use Cramer’s V.
Effect Criteria for tables larger than 2*2: R = Row, C = Column
1. R‐1, C‐1 equal to 1 (two categories): small = 0.01, medium = 0.30, large =
0.50
2. R‐1, C‐1 equal to 2 (two categories): small= 0.07, medium= 0.21, large = 0.35
3. R‐1, C‐1 equal to 3 (three categories): small = 0.06, medium = 0.17, large =
0.29
Abbreviations:
MHD = Mental Health Disorder
K10 = Psychological Distress Scale
CD = Chronic Disease
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Health Status Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Self-reported health Revised (nominal) 1= poor/fair 2= Good 3= Excellent /very good Use Ordinal Logistic Regression
drinks per week (Phi 0.36) ↑ alcohol over last 12/12 (Phi 0.16) SBP > 140mmHG (Phi .0.49) & DBP > 90mm HG
(Phi 0.45) & High BP >140/90 (Phi 0.16) Overweightness & obesity (Phi 1.28) Bodily pain (Phi 0.22) Bodily pain interferes with work (Phi 0.27) Arthritis (Phi 0.11) (15-24 age Phi 0.37) Asthma (Phi 0.27) Sight (Phi 0.08) & hearing disabilities (Phi 0.08) CVD (Phi 0.14) Diabetes (Phi 0.16) (55-64 age Phi 0.47)
Age Gender
MHD (nominal) 0= No 1= Yes Use Binary Logistic regression
K10 (Phi 0.32) Anxiety (Phi 0.15) Younger & older age have Phi >
0.31) Job insecurity (Phi 0.02) Disability (Phi 0.16) Arthritis (Phi 0.08) Cancer (Phi 0.08) Asthma (Phi 0.16) (Age Phi 0.31) CVD (Phi 0.13) Other work (Phi 0.08) Thoughts of leaving (Phi 0.03) Job satisfaction (Phi 0.11) Personnel Stressors (Phi 0.11) Family Stressors (Phi 0.11)
Gender Age
K10 (nominal) 1 = well 2 = Mild 3 = Moderate 4 = Severe Use Ordinal Logistic Regression
SR health status (Phi 0.38) Family Stressors (Phi 0.20) (15-24 age Phi .32) Personal stressors (Phi 0.25) (age >0.30) Asthma (Phi 0.11) (55-64 age Phi 0.32) Arthritis (Younger & older age have Phi > 0.31) Cancer (Phi 0.20) (35-44 age Phi 0.31) CVD (Phi 0.12) (55-64 age Phi 0.33) Alcohol – how many/week (Phi 0.54) Diabetes (55-64 age Phi 0.43) Other work (Phi 0.08) Job satisfaction (Cramer’s V 0.21)
Age Gender
Disability. 0 = No 1 = Yes Use Binary Logistic Regression
Checkups with GP (Phi 0.12) SR Health (Phi 0.15) adjusted for SWY - >25 SWY
Phi (0.30) Employment type (Phi 0.08) Gender (Phi 0.08) Age (Phi 0.31) Job satisfaction – adjusted for SWY - > 20SWY (Phi
>0.34)
SWY
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Health Status Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
LTC (Nominal) 0 = N0 1 = Yes Use Binary Logistic Regression
Employee skill group adjusted for SWY, age (Phi > 0.32), for gender – males Phi. 0.32
Asthma (SWY Phi > 0.30, Age & gender Phi > 0.30) Anxiety Description (Phi 0.31) Fatigue description (Phi 0.30) Barriers to exercise CVD, (>10 SWY Phi >0.30) Cancer (>15 SWY Phi > 0.30, >26 Years Phi >0.30) Disability (SWY Phi > 0.30, Age & gender Phi >
0.30) Diet (vegies & fruit SWY, age & gender Phi > 0.30) Job satisfaction (Age Phi > 0.30, Gender Phi 0.32) MHD (Phi O.31) Sleep RDOs (Phi. 0.30) Stressors (> 10SWY Phi > 0.32) Job satisfaction (SWY Phi > 0.32, Age Phi > 0.40) Health Culture (SWY Phi >0.32), (Age Phi >0.31) SR Health (SWY Phi > 0.32), (age Phi > 0.31),
Gender (Phi > 0.32) GP checkups (SWY 15-24 Phi > 0.32) (Age Phi >
0.40)
Age Gender SWY
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Chronic Disease Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Asthma (Nominal) 0 = No 1 = Yes Binary Logistic Regression
Barriers to exercise (Phi < 0.00) Education (phi < 0.07) (Highest qual. 15-
24 age Phi 0.36) LTC (Phi 0.13) Overweightness (Phi < 0.51) (Waist-hip
15 24 age Phi 0.33) Performance (Phi 0.04) Relationship status (Phi 0.08) Family Stressor (Phi 0.14) Personal stressors (Phi 0.03)
Gender
CVD (Nominal) 0 = No 1 = Yes Binary Logistic Regression
Anxiety Barriers to exercise (Phi < 0.30) Overweight (Phi <0.30) Performance (Emp. Skill - EMD Phi 0.49) Diabetes (Phi < 0.30) Fatigue (55-64 age Phi 0.32) Diet (Phi 0.34 for not currently working
shift work) Job satisfaction (EMD Phi 0.33) Other work (Phi 0.11) Sleep (Phi <0.31) Work health culture (Phi < 0.31) Family stressors (Phi <0.30)
Employment skill
Gender Shift work Age
Cancer (Nominal) 0 = No 1 = Yes Binary Logistic Regression
Alcohol last 7 days (Age Phi 0.31, gender Phi 0.34, shift work Phi 0.34, ESG Phi 0.34)
Alcohol 5 or more at one time (SW Phi 0.43, 55-64 age Phi 0.30)
Anxiety description (45-54 Phi 0.30, EMD Phi 0.32)
Overweightness (Phi <0.30) Breaks (Phi <0.30) Diabetes (EMD Phi 0.36)) Disability (Phi< 0.30) Job satisfaction (SW Phi 0.30) Diet (Phi, 0.30) Relationship status (S/M Phi 0.32) Smoking (Phi < 0.30) Stressors (Phi < 0.30) Work health culture (Phi < 0.30)
Age Gender Employment
skill
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Chronic Disease Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Diabetes (Nominal) 0 = No 1 = Yes Binary Logistic Regression
Arthritis (Phi < 0.30) Overweight (Phi < 0.30) Bodily pain (Cat 3 Phi 0.49) Disability (Phi <0.30) Education (Phi < 0.31) Fatigue (How Often - Cat 3 Phi 0.31,
Don’t work @ stat. Phi 0.36, Describe fatigue Cat3 Phi 0.32)
Job satisfaction (Cat 3 Phi 0.45 & Cat 4 Phi 0.32)
Other work (Phi < 0.30) Performance (S/M Phi 0.31, Cat 2 Phi
0.57) SR health (S/M Phi 0.33, 55-64 age Phi
0.55, Cat 4 Phi 1.00)
Age Gender Employment skill Station category
Arthritis (Nominal) 0 = No 1 = Yes Binary Logistic Regression
Barriers to exercise (Phi < 0.30) BP (SBP Sep. Phi 0.32, Div. Phi 0.7,
DBP- Sep. Phi 0.41, Div. Phi 0.75, High BP EMD Phi 0.31, Sep. Phi 0.47, Div. Phi 0.69)
Bodily pain (Phi < 0.30) Overweight (W/H divorced Phi 0.43,
Body pain 25-34 age Phi 0.33, 55-64 age Phi 0.40, Rel. Status – Separated Phi 0.32, Divorced Phi 0.71))
Cancer (Phi < 0.30) Disability (15-24 age Phi 0.36, Rel. Status
– Never Phi 0.33, Div. Phi 0.35) Fatigue (how often -Separated 0.40, div.
0.47, describe – div. Phi 0.67) Job satisfaction (15-24 age Phi 0.44, SW
Phi 0.3, Never rel. Phi 0.31, Separated Phi 0.34, Div. Phi 0.35)
Diet (Vegies - EMD Phi 0.30, Never Phi 0.30, Div. Phi 0.31, Fruit, 15-24 age Phi 0.43, Sep. Phi 0.32, Div. Phi 0.47
Sleep quality (Div. Phi 0.30) Stressors (Phi < 0.30)
Gender Employment skill Relationship status Shift work Age
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Chronic Disease Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
3 or more CD (Nominal) 0 1 2 3 4 Use ordinal Logistic Regression
Overweight (55-64 age Phi 0.42, ta1 Phi 0.34, Cat 2 Phi 0.34, Cat 3 Phi 0.46, W/H EMD Cramer’s V 0.32, Cat 3 Cramer’s V 0.74
Cancer (Phi 0.36) Sleep (Hours - 55-64 age Phi 0.46, No
stat. Phi 0.34, Quality – 55-64 age Phi 0.72, Cat 4 Phi 0.64
Fatigue (how often 15-24 Cramer’s V 0.41, 25-34 Cramer’s V 0.21, Des Fatigue S/M Phi 0.52, 25-34 age Cramer’s V 0.28, 55-63 age Cramer’s V 0.40, Cat 3 Phi 0.70, Cat 5 Phi 0.32)
Anxiety (How often – 35-44 age Phi 0.32, Cat 3 Phi 0.72, Describe Anx. S/M Phi 0.45, Male Phi 0.31, 25-34 age Phi 0.50,
Job satisfaction (S/M Cramer’s V 0.27, Male Cramer’s V 0.18, 15-24 age Cramer’s V 0.39, 25-34 age Cramer’s V 0.19, NO stat. Cramer’s V 0.24)
BP (Phi 0.30) SBP, DBP & High BP have Phi > 0.30 ass. With M/S, Cat 3 Stat. & 25-34 age group.
Stressors (Family - EMD Phi 0.39, Personal – S/M Phi 0.34
LTC (Phi 1.20) Alcohol how many/per week (Phi 1.2) Alcohol 5 or more (Phi 0.38) Smoking (S/M Phi 0.33, Disability (Emp. Type Phi 0.34, Gender
Phi 0.34) Body pain (M/S Cramer’s V 0.35, Para
Cramer’s V 0.21, Gender Cramer’s V 0.24, age Cramer’s V 0.21, Stat. Cat. Cramer’s V 0.24)
K10 (Phi 0.40) GP check ups SR health (Phi 0.30) Consider leaving (Cat one Phi 0.55) Shift work Diet (Vegies – EMD Phi 0.58, Fruit No
Stat. Phi 0.46
Station category Age Gender Employment skill
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Organisational symptomology Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Job satisfaction (nominal) 1 Depressing 2 Bad 3 Ok 4 Good 5 Great Use Ordinal Logistic Regression
Employment type (15-24 age Phi 0.51, 35-44 age Phi0.39, 45-54 age Phi 0.32)
Current shift workers (Phi 0.13) SWY (Phi 0.26) Qualifications (Highest school 55-64
Phi 0.48, Highest Qual. 15-24 Phi 0.61)
Alcohol more than last year (55-64 age Phi 0.54)
Bodily Pain (25-34 Phi 0.38) SR health (35-44 age Phi 0.30) Cancer (Phi 0.12) Station category (Phi 0.14) Disability (55-64 age Phi 0.41) Fatigue (how often Phi 0.38, describe
Phi 0.36) Anxiety (how often Phi 0.37, describe
Phi 0.32)
Age
Health culture (nominal) 0 Negative 1 Positive Binary Logistic Regression
Employment type (10-14 SWT Phi 0.38, 15-19 SWY Phi 0.31, 25-29 SWY Phi 0.32,
Education (Highest school Phi 0.06, Highest qual. Phi 0.12)
SR health (Phi 0.5) Arthritis (Phi -0.09) Cancer (Phi -0.10) CVD (Phi – 0.05) Bodily pain Phi 0.10) LTC (Phi 0.10) Station category (Phi 0.09) Thoughts of leaving (Phi -).27)
SWY
Thoughts of leaving (nominal) None
Alcohol more than last year (Phi 0.12) Arthritis (Phi 0.07) Bodily pain (Phi 0.16) LTC (Phi 0.23) SR health (Phi 0.14) Cancer (Phi 0.16)
Gender Employment
skill Age
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Organisational symptomology Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Breaks (nominal) 0 = No 1 = Yes Use Binary Logistic Regression
Job satisfaction (Male Phi 0.30, S/M Phi).30, Para. Phi 0.32, 25-34 age Phi 0.33, 45054 age Phi 0.32, 55-64 age Phi 0.37)
Fatigue (Describe – 45-54 age Phi 0.39, male Phi 033, How often - 45-54 age Phi0. 35, 55-64 age Phi 0.43)
Barriers to exercise (Phi <0.30) Performance (Phi < 0.30) Sleep (quality – 55-64 age Phi 0.33) Work health culture (55-64 age Phi
0.30) SR health (55-64 age Phi 0.40) K10 (S/M Phi 0.37, 45-54 Age Phi
0.30, 55-64 age 0.63) Bodily Pain (55-64 age Phi 0.53) Thoughts of leaving (Phi <0.30) Sitting hours (EMD Phi 0.76,
Gender Age Employment
skill
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Caring for self Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Fatigue (Nominal) 0 = never 1 = Occas…ly 2 = Frequent 3 = Constant Use Ordinal Logistic Regression
Bodily pain (Para Phi 0.30, 15-24 age Phi0.43, 25-34 age Phi 0.35, 55-64 age Phi 0.55, male Phi 0.37)
Job satisfaction (Emp. Type Phi 0.38, age group Phi 0.38, Gender Phi 0.38)
Alcohol – weekly (35-44 age Phi 0.37)
Alcohol – 5 or more in one sitting weekly (EMD Phi 0.53, 35-44 age Phi 0.55, female Phi 0.31))
SR health status (Emp. Type Phi 0.31, age group Phi 0. 31, Female Phi 0.30)
Disabilities (15-24 age Phi 0.37) Breaks (45-54 age Phi 0.35, 55-64 age
Phi 0.43, male Phi 0.33) Station category (Phi < 0.30) Work health culture (S/M Phi 0.30,
25-34 age Phi 0.34)
Employment skill
Gender Age
Sleep (Nominal) 1 = 6 hour or less 2 = 7 hours or more Use Binary Logistic Regression.
Chronic disease (55-64 age Phi 0.46) Qualifications (Phi <0.30) Shift work (EMD Phi 0.77, female Phi
0.60) SR health (S/M Phi 0.31, 55-64 age
Phi 0.31) Alcohol – 5 or more in one sitting
weekly (45-54 age Phi 0.32) Alcohol – amount per week (45-54
age Phi 0.30) MHD (15-24 age Phi 0.33) Bodily Pain (55-64 age Phi 0.43) Cancer (Phi < 0.30) CVD (Phi < 0.30) Fatigue (Phi < 0.31) Thoughts of leaving (Phi <0.30) Job satisfaction (Phi < 0.31) Overweight (W/H 15-24 age Phi 0.36) Smoking (Phi < 0.30) Sitting (Phi < 0.30)
Gender Age Employment
skill
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Caring for self Dependent Variable (Outcome)
Independent Variable (predictor) - Singular Statistical Association already established
Confounders
Barriers to exercise (lack of time) (nominal) 0 = Rarely 1 = Sometimes Binary Logistic Regression
Alcohol – 5 or more at one sitting weekly (EMD Phi 0.43, S/M Phi 0.38, 15-24 age Phi 0.40)
Alcohol – weekly (EMD Phi 0.46) Breaks (Phi < 0.30) Exercise (Para Phi 0.32, 35-44 Phi
0.44, 55-64 Phi 0.63, Gender Phi 0.31)
Diet (Fruit EMD Phi 0.39, 55-64 age Phi 0.36)
Asthma (Phi < O.30) Overweight Phi < 0.30 Bodily Pain (Phi <0.30) K10 (Phi < 0.30) Thoughts of leaving (Phi < 0.31)
Gender Age Employment
skill
Barriers to exercise (lack of energy) (nominal) 0 = Rarely 1 = Sometimes Binary Logistic Regression
Alcohol – 5 or more at one sitting weekly (Phi < 0.30)
Alcohol – more than last year (Phi < 0.30)
Breaks (Phi < 0.30) Exercise (Phi < 0.30) Diet (Fruit - EMD PHI 0.47) Asthma (15-24 age Phi 0.39) Overweight (Phi < 0.30) Bodily Pain (Phi < 0.30) K10 (Phi < 0.30) Thoughts of leaving (Phi < 0.30)
Gender Age Employment
skill
Hours worked 1 < 161 2 161-180 3181-200 4>200 Use Ordinal Logistic Regression
Employment type (25-34 Phi 0.31, 55-64 age Phi 0.42, Female Phi 0.30, EMD Phi 0.32)
YIA (15-24 age Phi 0.51) SWY (Phi < 0.30) Current shift work (Phi < 0.30) Job satisfaction (35-44 Phi 0.36, 55-
64 age Phi 0.66) Work health culture (55-64 age Phi
0.40) Stressors (Phi < 0.30) Fatigue (55-64 age Phi 0.57) Sleep (Phi <0.30)
Age Gender Employment
skill
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8.5 Appendix E: Semi-Structured Interview
SEMI‐STRUCTURED INTERVIEW ‐ QUESTIONS
1. Opening question:
What did you think of the outcomes from the study19?
2. Key questions:
Now imagine you are part of a committee tasked with identifying and making
recommendations in regard to potential health and well‐being programs for
operational personnel.
o What are the factors that you will make sure the committee considers in
designing these programs?
o These factors can be in many areas: individual and organisational,
equipment, education, skills development, coaching, training, courses,
drivers of culture and professional assistance
The participants in the study identified the issues that they considered were
barriers to exercise.
o What are some of the elements the committee could consider in
attempting to overcome these obstacles and make personnel feel more
comfortable and interested in exercise?
o This could include a wide range of services: new personnel orientation,
support to exercise, financial incentives, exercise promotion, hotline and
anything else you could think of.
A large number of operational personnel did not respond to the survey. There may
be qualms, negative reactions and turns offs that are unknown.
o What are the compelling arguments that will get people to change their
minds and utilise these services?
o What are the non‐obvious benefits that people are looking for?
o How do we sell this program?
3. End questions:
Of all the things we discussed, what is the most important?
Have we missed anything?
19 ‘The study’ refers to ‘The health of operational personnel in the Queensland Ambulance
Service: Influences, associations and impacts’
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Approach email
Subject Title: Semi‐structured interview ‐ The Health of Operational Personnel in the Queensland Ambulance Service: Influences, Associations and Impacts Dear colleagues I’m doing a PhD which aims to evaluate the health and work‐life balance of operational personnel in the QAS. I’m seeking individuals to participate in one hour semi‐structured interview regarding policy and systems with the aim of providing options for improving the health of operational personnel QAS. Your participation in this project is entirely voluntary and approved by the Commissioner QAS. I will come to you to minimise your need to travel. The first part will be an overview on the outcomes of the Ambulance Health Survey (AHS) 2015 which commenced in May 2015 and completed in August 2015. The second part will be the interview, conducted by myself. I will take notes and audio‐record the interview which, in conjunction with the notes, will be used for the purposes of analysis only. I may contact you after the interview to clarify comments, discussion and my conclusions. Please view the attached Participant Information Sheet and Consent Form for further details on the study. Should you wish to participate or have any questions, please contact me via email at [email protected]. Please note that this study has been approved by the QUT Human Research Ethics Committee (approval number 1400000936). Many thanks for your consideration of this request.
Richard Galeano
PhD Candidate
0437 729 735
Professor Gerard FitzGerald Principal Supervisor 07 3138 3935 [email protected] School of Public Health and Social Work, Faculty of Health Queensland University of Technology
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Participant Information Sheet
PARTICIPANT INFORMATION FOR QUT RESEARCH PROJECT – Semi‐structured Interview –
Ambulance Health Survey (AHS) 2015
QUT Ethics Approval Number 1400000936
RESEARCH TEAM Principal Researcher: Mr Richard Galeano, PhD candidate Associate Researcher: Professor Gerard FitzGerald, Principal supervisor Professor Tony Parker, Associate supervisor Professor Michele Clark, Associate supervisor School of Public Health and Social Work, Faculty of Health Queensland University of Technology
DESCRIPTION This project is being undertaken as part of PhD for Richard Galeano. The purpose of this project is to develop a comprehensive picture of the health of operational personnel in the Queensland Ambulance Service (QAS), identify factors that influence their health, identify associations between work and lifestyle, and determine how work groups and ambulance organisations may impact positively on the overall health of operational personnel. Yourself and seven other participants have been approved to participate in this semi‐structured interview by the Commissioner, QAS and are invited to attend as we believe you can provide valuable input into this exploration. This project has approval from the Commission QAS.
PARTICIPATION Your participation will involve a discussion on the outcomes of the AHS 2015 data collections and analysis, followed by an audio recorded semi‐structured interview at an agreed location that will take approximately one hour of your time. Questions will include:
“Imagine you are part of a committee tasked with identifying and making recommendations in regards to potential health and well‐being programs for operational personnel ‐ what are the factors that you will make sure the committee considers in designing these programs?” and,
“Barriers to exercise were identified in the study ‐ what are some of the elements the committee could consider in attempting to overcome these obstacles and make personnel feel more comfortable and interested in exercise?”
The semi‐structured interview will be conducted by myself. Your participation in this interview is entirely voluntary. If you do agree to participate you can withdraw from the interview without comment or penalty. Your decision to participate or not participate will in no way impact upon your current or future relationship with QUT or with QAS.
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EXPECTED BENEFITS It is expected that this project will not benefit you directly. However, it may benefit future healthcare policies, recommendations and public health programs for ambulance personnel. It is expected results of the study will be available in 2017, and will be presented at organised QAS station meetings throughout Queensland. Please note this interview is not intended for the purpose of divulging personal information or complaints you may have.
RISKS There are minimal risks associated with your participation in this project. These may include experiencing discomfort or distress in reliving your experiences, or discomfort with sharing your views in an interview.
Support is available through QAS Priority One at 1800 805 980. QUT also provides for limited free psychology, family therapy or counselling services (face‐to‐face only) for research participants of QUT projects who may experience discomfort or distress as a result of their participation in the research. Should you wish to access this service please call the Clinic Receptionist on 07 3138 0999 (Monday–Friday only 9am–5pm), QUT Psychology and Counselling Clinic, 44 Musk Avenue, Kelvin Grove, and indicate that you are a research participant. Alternatively, Lifeline provides access to online, phone or face‐to‐face support, call 13 11 14 for 24 hour telephone crisis support.
PRIVACY AND CONFIDENTIALITY All comments and responses will be treated confidentially unless required by law. The names of individual persons are not required in any of the responses. You will not have the opportunity to verify your comments and responses prior to final inclusion; however a follow‐up telephone call may be requested to clarify your comments. The audio recording will be transcribed and your responses will be rendered non‐identifiable; the audio recording will be destroyed after the contents have been transcribed. Only the research team will have access to the audio recording. It is not possible to participate in the project without being audio recorded. Any data collected as part of this project will be stored securely as per QUT’s Management of research data policy. 9 Please note that non‐identifiable data collected in this project may be used as comparative data in future projects or stored on an open access database for secondary analysis.
CONSENT TO PARTICIPATE We would like to ask you to sign a written consent form (enclosed) to confirm your agreement to participate.
QUESTIONS / FURTHER INFORMATION ABOUT THE PROJECT If you have any questions or require further information, please contact one of the research team members below. Mr Richard Galeano Professor Gerard FitzGerald Phone 0437 729 735 Phone 0731 383 935 Email [email protected] Email [email protected]
CONCERNS / COMPLAINTS REGARDING THE CONDUCT OF THE PROJECT QUT is committed to research integrity and the ethical conduct of research projects. However, if you do have any concerns or complaints about the ethical conduct of the project you may contact the QUT Research Ethics Advisory Team on [+61 7] 3138 5123 or email [email protected]. The QUT Research Ethics Advisory Team is not connected with the research project and can facilitate a resolution to your concern in an impartial manner.
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CONSENT FORM FOR QUT RESEARCH PROJECT – Semi‐structured interview –
Ambulance Health Survey (AHS)
QUT Ethics Approval Number 1400000936 RESEARCH TEAM CONTACTS Richard Galeano, PhD candidate Professor Gerard FitzGerald Phone: 0437 729 735 Phone 0731 383 935 Email [email protected] Email [email protected]
STATEMENT OF CONSENT
By signing below, you are indicating that you:
Have read and understood the information document regarding this project.
Have had any questions answered to your satisfaction.
Understand that if you have any additional questions you can contact the research team.
Understand that you are free to withdraw without comment or penalty but after de‐identification of your data withdrawal will not be possible.
Understand that you can contact the Research Ethics Advisory Team on [+61 7] 3138 5123 or email [email protected] if you have concerns about the ethical conduct of the project.
Understand that the project will include an audio recording.
Understand that non‐identifiable data collected in this project may be used as comparative data in future projects.
Agree to participate in the project.
Name
Signature
Date
MEDIA RELEASE PROMOTIONS
From time to time, we may like to promote our research to the general public through, for example, newspaper articles. Would you be willing to be contacted by QUT Media and Communications for possible inclusion in such stories? By ticking this box, it only means you are choosing to be contacted – you can still decide at the time not to be involved in any promotions.
Yes, you may contact me about inclusion in promotions.
No, I do not wish to be contacted about inclusion in promotions.
Please return this sheet to the investigator.
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Appendices
8.6 Appendix F: Category of Variables
Table 8.6-1 Variables Categorised
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Variable Variable Category
Gender Ordinal
Age Scale
Age grouped Ordinal
Years of ambulance work Scale
Years of ambulance work grouped Ordinal
Total shift work years Scale
SWYR grouped Ordinal
Employee skill Nominal
Employee skill grouped Ordinal
Employee type Nominal
Employee type grouped Ordinal
Current shift worker Ordinal
Total shift work years Scale
Station Category Ordinal
Station name String
Relationship status Nominal
Relationship status grouped Ordinal
Highest school Nominal
Highest school grouped Ordinal
Highest qualification Nominal
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Appendices
Variable Variable Category
Highest qualification grouped Ordinal
Other work Ordinal
Consider leaving Ordinal
Roster type Nominal
Self-reported health Ordinal
Self-reported health revised Ordinal
GP Check-ups Ordinal
K10 Count
K10 revised Ordinal
Mental Medications Ordinal
Body Pain Ordinal
Disability Nominal
Disability grouped Ordinal
Self-reported BMI Ordinal
Exercise hours Count
Exercise hours grouped Ordinal
Sitting hours Count
Sitting hours grouped Ordinal
Smoking Ordinal
Diet vegetables Ordinal
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Variable Variable Category
Diet fruit Ordinal
Alcohol Count
Alcohol grouped Ordinal
Asthma Ordinal
Skin checks Ordinal
Cancer Ordinal
CVD Ordinal
Arthritis Ordinal
BP checks Ordinal
Diabetes Ordinal
Long term condition Ordinal
Mental health disorder Nominal
Back problems computed Ordinal
Family stressors Nominal
Personal stressors Nominal
Height Count
Weight Count
BMI Ratio
Waist Count
Hip Count
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Appendices
Variable Variable Category
Waist-hip Ratio
BMI group Ordinal
Waist-hip group Ordinal
SBP Count
DBP Count
BP (SBP/DBP) Ratio
Rest breaks Ordinal
Wellness incentives Ordinal
Wellness facility Ordinal
Barriers to exercise Nominal
Job satisfaction (JS) Nominal
JS computed Ordinal
Work related health culture (WRHC) Nominal
WRHC computed Ordinal
Anxiety Nominal
Fatigue Nominal
Hours worked Count
Performance Nominal
Sleep quality Nominal
Sleep hours Count
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