health literacy a cognitive factors perspective · health literacy michael wolf, ma mph phd...
TRANSCRIPT
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Health Literacy
Michael Wolf, MA MPH PhDAssistant Professor of Medicine and Learning Sciences
Director, Center for Communication in HealthcareFeinberg School of Medicine
School of Education & Social PolicyNorthwestern University
Definition & Controversies
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Linking Medicine to:
• Cognitive Psychology
• Communication
• Human Factors/Engineering
• Learning Sciences/Education
• Marketing/Management
• Neuropsychology
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Presentation Overview.
• Health Literacy: What We Know
• Deconstructing Health Literacy
• A ‘Cognitive Factors’
Approach
• Intervention Targets
• Moving Forward
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Education, Literacy, & Health• ↓
Years of schooling linked to ↓
health
(Kitigawa & Hauser, 1973; Pappas et al, 1993; Lantz et al, 1998)
• Low literacy predicts poorer health outcomes(Schillinger et al, 2002; Baker et al., 2002; Wolf et al., 2005; Baker et al. 2007)
• Literacy ~ Education(Gazmararian, et al., 1999)
Figure 1. Literacy Levels by Years of School Completed.
0
20
40
60
80
100
0 to 8 9 to 11 12 > 12
Years of School
Prev
alen
ce (%
)Adequate Marginal Inadequate
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Literacy: Fundamental Skills
The ability to read, write, and speak in English, and compute and solve problems at levels of proficiency necessary to function on the job and in society, toachieve one’s goals, and develop one’s knowledge and potential
-National Adult Literacy Act of 1991
Prose
DocumentQuantitative
FunctionalLiteracy
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Literacy Skills of U.S. Adults
93 million U.S. adults (43%) have limited literacy skills
0
10
20
30
40
50
60
70
80
Total AA Hispanic White
Below BasicBasicLimited Literacy
National Assessment of Adult Literacy (2003)
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A Looming Epidemic
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Perfect Storm 2030 Prediction
Excerpt from America’s Perfect Storm: Three forces changing our nation’s future. Educational Testing Service, January 2007; Parker, Wolf, Kirsch, J Gen Intern Med 2008
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Health Literacy: What We Know
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Measurement.S-TOFHLA:
The X-ray will _____ from 1 to 3 _____ todo.
a. take
a. bedsb. view
b. brainsc. talk
c. hoursd. look
d. diets*Cloze procedure (Taylor, 1953)
(specific instructions given for a pill to be taken every 6 hours):
If you take your first tablet at 7:00 am, when should you take the next one?
REALM (out of 66 words)
fat fatigue allergic
flu pelvic menstrual
pill jaundice testicle
dose infection colitis
eye Exercise emergency
stress behavior medication
smear prescription Occupation
nerves notify sexually
germs gallbladder alcoholism
meals calories irritation
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Health Literacy: What We Know
• Use of preventive services • Delayed diagnoses • Understanding of medical condition• Adherence to medical instructions • Self-management skills • Risk of hospitalization • Physical and mental health • Mortality risk• Greater health care costs
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Literacy and Mortality Risk50
6070
8090
100
Perc
ent A
live
0 20 40 60 80Months
AdequateMarginalInadequate
Baker DW, Wolf MS, Feinglass J, Gazmararian JA, Thompson JA. Arch Intern Med 2007; 167: 1503-1509.
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Literacy and Mortality Risk50
6070
8090
100
Perc
ent A
live
0 20 40 60 80Months
AdequateMarginalInadequate
Baker DW, Wolf MS, Feinglass J, Gazmararian JA, Thompson JA. Arch Intern Med 2007; 167: 1503-1509.
STRONGER INDICATOR OF MORTALITY RISK
THAN YEARS OF SCHOOLING
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Health Literacy > Reading
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Health Literacy: What We Know
• Use of preventive services
• Delayed diagnoses
• Understanding of medical condition
• Adherence to medical instructions
• Self-management skills
• Risk of hospitalization
• Physical and mental health
• Mortality risk
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Cognitive Function: What We Know
• Use of preventive services
• Understanding of medical condition
• Adherence to medical instructions
• Self-management skills
• Physical and mental health
• Mortality risk
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Similarities?
• Use of preventive services
• Understanding of medical condition
• Adherence to medical instructions
• Self-management skills
• Physical and mental health
• Mortality risk
• Use of preventive services
• Delayed diagnoses
• Understanding of medical condition
• Adherence to medical instructions
• Self-management skills
• Risk of hospitalization
• Physical and mental health
• Mortality risk
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Cognitive Abilities, Literacy, Mortality50
6070
8090
100
Per
cent
Aliv
e
0 20 40 60 80Months
AdequateMarginalInadequate
5060
7080
9010
0P
erce
nt A
live
0 20 40 60 80Months
3 of 32 of 31 of 30 of 3
Cognitive abilities explains 50% of health literacy effect on mortality
Literacy Memory
Baker DW, Wolf MS, Feinglass J, Thompson JA., J Gen Intern Med, 2008.
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Deconstructing Health Literacy.
• A Cognitive Skill Set- basic reading ability- beyond the basics…
• A Psychosocial Skill Set- self-efficacy- communication skills- prior expectations
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Deconstructing Health Literacy.
• A Cognitive Skill Set- basic reading ability- beyond the basics…
• A Psychosocial Skill Set- self-efficacy- communication skills- prior expectations
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Deconstructing Health Literacy.
• A Cognitive Skill Set- basic reading ability- beyond the basics…
• A Psychosocial Skill Set- self-efficacy- communication skills- prior expectations
Obtain -
Process -
Understand -
Decide -
Act
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Health Literacy ~ Health Learning
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Health Literacy ~ Health Learning
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Health Literacy ~ Health Learning
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A Cognitive Factors Approach.
• Applied sciences addressing human cognition, learning, and behavior
• Health Context
• Goal: Minimize ‘Cognitive Load’† address working memory limitations† when possible, do the work† eliminate distracters† use repetition with salience† slow down, allow adequate time (accuracy)
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Overall Health Learning Objectives
Comprehend
Retain
Transfer(Problem-Solve)
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How do we support learning in healthcare?
• Physicians most trusted source of health information(Makoul & Arnston, 2001)
• Often only source for patients with limited health literacy(Wolf et al., 2004)
• Medical encounters often incomplete, without review(Schillinger et al., 2003 ;Wolf et al., 2007)
• Consequence: ↓
patient understanding, ↓
informed decisions↓
health behaviors, ↓
health outcomes, ↑
adverse events(Schillinger et al., 2003; Davis et al., 2006; Persell et al., 2007; Khankari et al., 2007; McCaffery 2008)
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A Health Literacy Perspective• Simplify the health care experience
• Support comprehension, action
• Maintain communication
Health System Demands
IndividualAbility
Health Literacy
Clear
Concise
Consistent
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Health Literacy Targets
• Patient skills
• Health materials
• Clinician skills
• Health system design
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Quality Improvement Targets
• Patient skills
• Health materials
• Clinician skills
• Health system design
General –
Bridge Education System
Specific –
Chronic Care Management
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Health Literacy Targets
• Patient skills
• Health materials
• Clinician skills
• Health system design
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Health Literacy Targets
• Patient skills
• Health materials
• Clinician skills
• Health system design
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Health Literacy Targets
• Patient skills
• Health materials
• Clinician skills
• Health system design
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Health Materials
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Enhanced Print & External Aids.
• Enhanced print = simplified text + visual aids
• External Aids = visual aids + reminder tools
Glyburide
50mg
9/27/2007
This medicine is for Michael Wolf
To treat Diabetes
Prescribed by Ruth Parker, MD
Filled by Target Pharmacy1234 Lakeshore Dr.St. Paul, MN 12345(555) 555-1212
You have 11 refillsRefer to Rx# 789-5432-10
INSTRUCTIONS
Take 2 tablets in the morning, and 2 tablets at bedtime
-
Take with food.-
Swallow the tablet whole.-
Do not drink alcohol.
2 tablets2 tablets
Bedtime(9-11pm)
Evening(4-6pm)
Noon(11am-1pm)
Morning(6-8am)
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If you have a lung disease, such as chronic obstructive pulmonary disease (COPD) or asthma, there are many lung function tests a doctor can do in his or her office or in a lab. Lung function tests, such as measuring peak inspiratory
flow rates (PIFR) and
peak expiratory flow rates (PEFR), allow the doctor to measure how much air you can take into your lungs with a deep breath (inhale) and how quickly you can expel the air from your lungs (exhale). Lung function tests assist the doctor in diagnosing breathing problems and in monitoring how well your lungs are working.
Flesch-Kincaid reading level –
12th
If you have a lung disease, such as chronic obstructive pulmonary disease (COPD) or asthma, there are many lung function tests a doctor can do in his or her office or in a lab. Lung function tests, such as measuring peak inspiratory
flow rates (PIFR) and
peak expiratory flow rates (PEFR), allow the doctor to measure how much air you can take into your lungs with a deep breath (inhale) and how quickly you can expel the air from your lungs (exhale). Lung function tests assist the doctor in diagnosing breathing problems and in monitoring how well your lungs are working.
Flesch-Kincaid reading level –
12th
Starting with a Complex Standard…Starting with a Complex Standard…
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…Work Towards Plain Language
If you have a lung disease, such as chronic bronchitis, emphysema, or asthma, your doctor may recommend tests to see how your lungs are working. These tests measure how fast you can breath air in and breath air out. These tests help your doctor understand what is wrong with your lungs. Sometimes, your doctor will repeat the test to follow how well your lungs are working.
Flesch-Kincaid reading level –
6.5
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Improving Rx
Instructions
“For External Use Only”
“Use Only on Your Skin”
“Take Two Tablets by Mouth Twice Daily”
“Take 2 pills in the morning, and 2 pills at bedtime”
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Improving Rx
Instructions
“For External Use Only”
“Use Only on Your Skin”
“Take Two Tablets by Mouth Twice Daily”
“Take 2 pills in the morning, and 2 pills at bedtime”
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Improving Rx
Instructions
“For External Use Only”
“Use Only on Your Skin”
“Take Two Tablets by Mouth Twice Daily”
“Take 2 pills in the morning, and 2 pills at bedtime”
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Improving Rx
Instructions
“For External Use Only”
“Use Only on Your Skin”
“Take Two Tablets by Mouth Twice Daily”
“Take 2 pills in the morning, and take 2 pills at bedtime”
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Question of Modality.
• Print or Video?- not a case of ‘either/or’
- Understand multimediaprinciples
Asthma
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First Step to Action is Understanding
This report, by its very length, defends itself against the risk of being read.
- Winston Churchill
Broadly speaking, the short words are the best, and the old words best of all.
- Winston Churchill
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First Step to Action is Understanding
This report, by its very length, defends itself against the risk of being read.
- Winston Churchill
Broadly speaking, the short words are the best, and the old words best of all.
- Winston Churchill
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Clinician Skills
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Instructional Strategy.
• Teachback (“Tell me what you heard”)
• Teach-to-goal (learning mastery)
• Implementation Intention (activated response)
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Instructional Strategy.
• Teachback (“Tell me what you heard”)
• Teach-to-goal (learning mastery)
• Implementation Intention (activated response)
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Understanding Primary Rx Label Instructions: “Take Two Tablets by Mouth Twice Daily”
AdequateMarginalLow
Patient Literacy Level
100.00
80.00
60.00
40.00
20.00
0.00
Corre
ct (%
)
80.2
62.8
34.7
89.484.1
70.7
Demonstration of LabelInstructions
Understanding of LabelInstructions
Wolf et al, Patient Education & Counseling, 2007
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Instructional Strategy.
• Teachback (“Tell me what you heard”)
• Teach-to-goal (learning mastery)
• Implementation Intention (activated response)
?
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Instructional Strategy.
• Teachback (“Tell me what you heard”)
• Teach-to-goal (learning mastery)
• Implementation Intention (activated response)
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Instructional Strategy.
• Teachback (“Tell me what you heard”)
• Teach-to-goal (learning mastery)
• Implementation Intention (activated response)
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Health System Design
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Seeking Sustainability.
• In practice: teach, follow-up
• Target patients
• Leverage electronic health record (EHR)- ‘prime’ patients- display video- generate enhanced print materials- track patients
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Medication Management
• Reconcile meds
• Standardize ‘sigs’
• Access Rx info using EHR
• Structure MD counseling
• Patient leave with Rx info
Promoting Health Literacy for Newly Prescribed Medications via the EMR; R21 CA13277; PI Wolf
Using IT for Patient-Centered Communication and Decision Making about Medications R18 HS17220; PI: Wolf
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ACPF Diabetes GuideA Low literacy, print self-care tool
• Brief, plain language messages
• Supportive pictures, graphics
• Patient narratives
• Chunked information
• Non-linear approach
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The Intervention• Patients receive follow-up phone calls to discuss
action plan successes and challenges
• 6 follow-up calls or in-person encounters
0 1 2 3 4 5 6 7 8 9 10 11 12
Baseline clinic visitTelephone call follow-upClinic visit OR telephone call follow-up
Carve-In vs. Carve-Out
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To Screen or Not to Screen…
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New and Old S-TOFHLA Categories.
1000 55 67
31 51 61 71 81 91
I II III IV V VI VII
Inadequate Marginal Adequate
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0.5
1
1.5
2
2.5
3
0-30 31-40 51-60 61-70 71-80 81-90 91-100
ref
S-TOFHLA Score
Adjusted Hazard Ratios for S-TOFHLA Categories and Mortality.
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0.5
1
1.5
2
2.5
3
0-30 31-40 51-60 61-70 71-80 81-90 91-100
ref
S-TOFHLA Score
Adjusted Hazard Ratios for S-TOFHLA Categories and Mortality.
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Moving Forward.
• What are we asking of patients?
• How are we supporting them?-
clear, concise & consistent directions-
consider patient perspective-
limit, layer-
follow-up!
• Multi-disciplinary approach needed-
test modalities-
Multiple intervention targets (combined strategies)
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Summary• Simplify Health Care for the Patient
• The Promise of Health Technology
• Seek Sustainable
Solutions
• Comprehensive Strategies Needed!
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Contact Information:
Michael S. Wolf, PhD MPH Assistant Professor of Medicine and Learning Sciences Director, Health Literacy and Learning Program Division of General Internal Medicine Institute for Healthcare Studies Northwestern University Feinberg School of Medicine 750 N. Lake Shore Drive, 10th Floor Chicago, IL 60611 (312) 503 – 5592 [email protected]