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Understanding the fentanyl crisis in
Canada: A public health lens
Public Health Ontario Grand Rounds, May 24, 2016
Dr. Pamela Leece and Dr. Meldon Kahan
Financial Disclosures
Pamela Leece
Research: Health Canada funding 2015-2017, “Improving
Canadian Family Physician Knowledge and Performance in Safe
Prescribing of Opioids for Chronic Non-Cancer Pain”
Meldon Kahan
Speaking: presentation sponsored by Indivior several years ago
Research: PI on METAPHI project (Mentoring Education and
Tools for Addiction: Primary Care Hospital Integration) –
funded by ARTIC program and Health Quality Ontario
Objectives
Describe the current situation of opioid-related harms in Canada and, in
particular, Ontario.
Discuss current initiatives designed to reduce opioid-related harms, and the use of these interventions in
various jurisdictions.
Agenda
Describe interventions
Outline opioid-related harms
Summarize trends in opioid use
Discuss fentanyl
What is fentanyl?
Health Canada Drug Product Database: http://webprod5.hc-sc.gc.ca/dpd-bdpp/index-eng.jsp
Controlled Drugs and Substances Act: http://laws-lois.justice.gc.ca/eng/acts/c-38.8/
•Opioid analgesic
•Several fentanyls, salts, derivatives, analogues Synthetic
•Rapid onset, short duration Fast
•50-100x more potent than morphine Potent
•Controlled Drugs and Substances Act,
Schedule I Controlled
• Cancer pain, severe/continuous pain (opioid tolerant patients), anesthesia Therapeutic
What is fentanyl?
Friesen et al CMAJ Apr 4 2016
CCENDU Bulletin August 2015
Sources
Prescribing
- Often unsafe
- Diversion
Uncontrolled
- Often imported
- Powder, tablets, mixed
Fentanyl Crisis
Alberta Timeline – fentanyl-detected deaths 2011
• 6
2012
• 29
2013
• 66
2014
• 120
2015
• 274
2016 (Q1)
• (69)
http://www.health.alberta.ca/health-info/AMH-Naloxone-Take-home.html
2012
• 13
• 5%
2013
• 49
2014
• 91
2015
• 152
2016 (Q1)
• (98)
• 49%
British Columbia Timeline – fentanyl-detected deaths
http://www2.gov.bc.ca/gov/content/safety/public-safety/death-investigation/statistical-reports
Year Codeine* Fentanyl Heroin Hydromorphone Methadone Morphine Oxycodone TOTAL
Decedents**
2002 18 10 23 18 69 62 31 210
2003 17 20 7 14 74 64 45 225
2004 23 28 8 13 65 66 55 246
2005 21 30 10 16 85 73 90 299
2006 20 26 2 21 75 80 107 292
2007 28 36 10 25 81 81 123 341
2008 24 50 19 31 69 80 133 355
2009 33 73 15 42 63 87 202 449
2010 34 91 39 46 92 86 211 514
2011 39 112 45 53 118 85 217 548
2012 45 140 57 85 118 96 189 598
2013 56 136 60 111 147 129 154 633
2014 60 176 100 127 127 139 146 673
TOTAL 418
(413-428) 928
(925-934) 395
(389-407) 602 (599-608)
1183 (1182-1185)
1128 1703 5383
Number of Opioid Toxicity Deaths and Opioid + Alcohol Toxicity Deaths by Drug in Ontario from 2002 to 2014
*For years where the number of deaths was reported as “<5” the number of deaths was assumed to be 2 for the purposes of summing and
displaying the data. In the total number of deaths column, the minimum and maximum number of deaths possible are given in brackets.
**Some deaths can be attributed to multi-drug toxicity, therefore a single decedent may account for more than one drug in each row. The
Total Decedents column gives the total number of unique individual opioid toxicity deaths per year.
Source: Office of the Chief Coroner,
Ontario
Fentanyl death data
Very limited National
Canandian Community Epidemiology Network on Drug Use
http://www.ccsa.ca/Resource%20Library/CCSA-CCENDU-Fentanyl-Deaths-Canada-Bulletin-2015-en.pdf
British Columbia
BC Coroners Service http://www2.gov.bc.ca/gov/content/safety/public-safety/death-investigation/statistical-reports
Alberta
Alberta Health Services http://www.health.alberta.ca/health-info/AMH-Naloxone-Take-home.html
Ontario
Office of the Chief Coroner (2014)
Major Data Limitations
• Challenges with classification: 1) drug testing, 2) drug detection, 3) multiple drugs, 4) determining cause of death
Numerator
• Who is “exposed”? vs. total population
Denominator
• Timing: Lag to finalize coroner’s investigations
• Grouping: e.g., “drug-related,” “opioid-related,” ”illicit drug-related,” “fentanyl-detected,” “fentanyl- implicated”
Reporting
Fentanyl-detected deaths
It appears fentanyl deaths…
• Increasing in absolute numbers #
• Increasing proportion of drug-related deaths %
• These changes are happening rapidly !
• Incomplete information about circumstances ?
• Often other substances detected +
Figure 3: The total number of deaths with which a drug was associated for opioid toxicity deaths and opioid
+ alcohol toxicity deaths in Ontario from 2002 to 2014. For years where the number of deaths associated
with a drug were reported as “<5” the number of deaths was assumed to be 2.
0
40
80
120
160
200
240
2002 2004 2006 2008 2010 2012 2014
Num
ber
of
Death
s
Year
Drugs Contributing to opioid toxicity and opioid + alcohol toxicity deaths in Ontario per year from 2002-2014
Codeine
Fentanyl
Heroin
Hydromorphon
eMethadone
Morphine
Oxycodone
Source: Office of the Chief Coroner,
Ontario
0
50
100
150
200
250
300
350
400
450
500
550
2002 2004 2006 2008 2010 2012 2014
Num
ber
of
Death
s
Year
Yearly Number of Opioid Toxicity Deaths in Ontario by Drug, 2002-2014
Codeine
Fentanyl
Heroin
Hydromorpho
neMethadone
Morphine
Oxycodone
Total Deaths
Figure 4: The total number of deaths with which a drug was associated and the total number of unique
individual opioid toxicity deaths annually in Ontario from 2002 to 2014. Some deaths can be attributed to
multi-drug toxicity, therefore a single decedent may have more than one opioid contributing to death.
Source: Office of the Chief Coroner,
Ontario
Opioid Use in Canada
Utilization of Prescription Opioids in Canada's Public Drug Plans, 2006/07 to
2012/13April 2014. Government of Canada.
Available: http://www.pmprb-cepmb.gc.ca/view.asp?ccid=1033
Opioid Use in Canada
Utilization of Prescription Opioids in Canada's Public Drug Plans, 2006/07 to
2012/13April 2014. Government of Canada.
Available: http://www.pmprb-cepmb.gc.ca/view.asp?ccid=1033
PEI NS
SK ON
Opioid Use in Canada
Utilization of Prescription Opioids in Canada's Public Drug Plans, 2006/07 to
2012/13April 2014. Government of Canada.
Available: http://www.pmprb-cepmb.gc.ca/view.asp?ccid=1033
PEI NS
SK ON
Opioid Use in Ontario
http://odprn.ca/wp-content/uploads/2016/03/FINAL-UPDATED_Opioid-Hosp-Report-_March-2016.pdf
• Opioid Prescribing (ODB), age 15-64
• 11,610 prescriptions per 1,000 beneficiaries per year
• Range by county 3,808 to 42,201
+47%
2006-2010 vs. 2011-2013
Outcomes
• Drug poisoning deaths
• Opioid-related deaths
• Life expectancy Mortality
• Non-fatal overdose
• Non-medical opioid use/ Addiction
• Neonatal abstinence syndrome
• Other: e.g., motor vehicle collisions
Morbidity
Injury Pyramid
Adapted from:
http://apps.who.int/iris/bitstream/10665/149798/1/9789241508018_eng.pdf?ua=1&ua=1&ua=1
http://www.cdc.gov/drugoverdose/pdf/policyimpact-prescriptionpainkillerod-a.pdf
Fatal
Hospitalizations
Emergency department visits
Primary care
Not treated/ Not reported
1 opioid-related death
10 addiction treatment
admissions
32 ED visits
for misuse or abuse
130 who abuse
or are dependent
825 nonmedical
users
CDC Estimates:
Canadian Trends: Opioid-related harms
Murphy Y, Goldner EM, Fischer B. Prescription Opioid Use, Harms and Interventions in Canada: A Review
Update of New Developments and Findings since 2010. Pain Physician. 2015 Jul-Aug;18(4):E605-14.
• Declining in general population (adults, students)
• Not declining in special populations (e.g., street drug users, First Nations)
Non-medical prescription opioid use
• Plateaued in Ontario (DATIS)
• Note: does not include methadone; increasing; ~50,000 on MMT
Addiction treatment demand
• Student – 4.3% drove under influence of opioids
• Higher opioid dose - increased odds of road trauma Driving risks
• Increased 15x from 1992 to 2011 in ON
• First Nations community in ON – 18%
Neonatal-morbidity
• Rising in various jurisdictions Mortality
Rates of prescription opioid-related death in British Columbia (BC) and Ontario (ON) from
2004 to 2013.
©2015 by BMJ Publishing Group Ltd
Reproduced from Emilie J Gladstone et al. Inj Prev doi:10.1136/injuryprev-
2015-041604 with permission from BMJ Publishing Group Ltd.
Additional information:
2013 ON
4.65/ 100,000
(Chief Coroner for
Ontario)
Year Codeine* Fentanyl Heroin Hydromorphone Methadone Morphine Oxycodone TOTAL
Decedents**
2002 18 10 23 18 69 62 31 210
2003 17 20 7 14 74 64 45 225
2004 23 28 8 13 65 66 55 246
2005 21 30 10 16 85 73 90 299
2006 20 26 2 21 75 80 107 292
2007 28 36 10 25 81 81 123 341
2008 24 50 19 31 69 80 133 355
2009 33 73 15 42 63 87 202 449
2010 34 91 39 46 92 86 211 514
2011 39 112 45 53 118 85 217 548
2012 45 140 57 85 118 96 189 598
2013 56 136 60 111 147 129 154 633
2014 60 176 100 127 127 139 146 673
TOTAL 418
(413-428) 928
(925-934) 395
(389-407) 602 (599-608)
1183 (1182-1185)
1128 1703 5383
Number of Opioid Toxicity Deaths and Opioid + Alcohol Toxicity Deaths by Drug in Ontario from 2002 to 2014
*For years where the number of deaths was reported as “<5” the number of deaths was assumed to be 2 for the purposes of summing and
displaying the data. In the total number of deaths column, the minimum and maximum number of deaths possible are given in brackets.
**Some deaths can be attributed to multi-drug toxicity, therefore a single decedent may account for more than one drug in each row. The
Total Decedents column gives the total number of unique individual opioid toxicity deaths per year.
Outcomes
WHY?
Unintentional injuries 4th cause of death; increasing
Unintentional poisoning 1st cause of injury death; increasing 14.7 per 100,000
(Opioid-related deaths represent 5.9 per 100,000) (40%)
Life Expectancy
United States 2013 vs. 2014
Unchanged 78.8 years
Decreased 0.1 years in non-Hispanic White
http://www.cdc.gov/nchs/products/databriefs/db244.htm
http://www.cdc.gov/nchs/data/hus/hus15.pdf#015
http://www.cdc.gov/injury/images/lc-charts/leading_causes_of_injury_deaths_unintentional_injury_2014_1040w740h.gif
Opioids in Ontario
http://odprn.ca/wp-content/uploads/2016/03/FINAL-UPDATED_Opioid-Hosp-Report-_March-2016.pdf
• Emergency Department Visits • 19,769 visits 2006-2013 (88% age 15-64)
• 2.7 per 10,000 (range 1.6 to 11.3) +23%
• Hospital Admission • 10,689 admissions 2006-2013 (78% age 15-64)
• 1.1 to 1.3 per 10,000 (range 0.5 to 4.0) +18%
2006-2010 vs. 2011-2013, age 15-64
Opioids in Ontario
• increased 15x between 1992 and 2011 (majority since 2007)
Neonatal abstinence syndrome
• increased 250% in past 2 decades, reaching 42 per million by 2010
Overdose deaths
• increased 3x from 1992 to 2010
• 1 in 8 deaths among age 25-34 in 2010
Years of potential life lost (YLL)
• among 32.6% of younger ODB recipients on long-acting oxycodone
• 3x risk of overdose, similar for motor vehicle injuries
> 200mg morphine equivalents (“high
dose”)
Gomes T, Juurlink DN. Opioid Use and Overdose: What We've Learned in Ontario.
Healthc Q. 2016;18(4):8-11.
Context: Other Deaths in Ontario
• Motor vehicle deaths (2014) • http://www.mto.gov.on.ca/english/publications/pdfs/preli
minary-2014-orsar-selected-statistics.pdf 481
• Streptococcus pneumoniae
• #1 for average annual infectious deaths
•http://www.publichealthontario.ca/en/eRepository/ONBoID_ICES_Report_ma18.pdf
623
• Opioid-related (2014) • Office of the Chief Coroner, Ontario 673
Direct links: Prescribing and Harms
• Prescription in the year before death (Dhalla 2009)
• 56% in month before death 89%
• Prescribed opioids after non-fatal overdose (Larochelle 2016) 91%
• First exposed by prescribing – among those with heroin or nonmedical prescription opioid use (Butler 2016) 59%
• Prescription source before addiction treatment (Sproule 2009) 37%
• Develop addiction in chronic opioid therapy (Juurlink 2012) Up to 1/3
• Risk of opioid-related mortality on 200mg/d vs. <20mg/d (Gomes 2011) 3x
• Sedative prescription 30d before opioid death (Fulton-Kehoe 2015) 48%
How did we get here?
• 1990’s: Assertion that opioids were safe (Kolodny 2015)
• Opioid sales USA skyrocketed Marketing
• American Pain Society: “Fifth Vital Sign” (Kolodny 2015)
• Higher potency opioids and doses for chronic pain Champions • Conflict of interest in medical education (Persaud
2014)
• Lack of pain and addiction training (NACPDM 2013) Education
• Canada Health Act: physician and hospital services Funding
• Specialized pain and addiction services (NACPDM 2013) Gaps
• Focus on individual behaviour; barrier to treatment (Broyles 2014) Stigma
Epidemiologic Triad: Opioids
Agent:
Highly psychoactive
Host:
Co-morbidities
Co-prescribing
Social determinants of health
Adverse childhood experiences
Environment:
Prescribing
Health care services
(pain and addiction)
“Street” sources
Physicians = vector?
Evidence for Opioid Use
Benefits
• RCTs < 12 weeks
• Short-term benefit
• Improved pain and function
• Noncancer nociceptive and neuropathic pain
Risks
• Side effects: constipation, dry mouth, nausea, vomiting, drowsiness, confusion, hypogonadism, tolerance, physical dependence, and withdrawal symptoms
• Complications: opioid use disorder, respiratory depression, hyperalgesia, fractures, and death
CDC Guideline for Prescribing Opioids for Chronic Pain — United States, 2016.
Kolodny A, et al. The prescription opioid and heroin crisis: a public health approach to
an epidemic of addiction. Annu Rev Public Health. 2015 Mar 18;36:559-74.
Canadian Trends: Interventions
• BC: Decreased “double doctoring” 32.8% in 6 months after introduction 1995
• NS: Reduced meperidine prescriptions 12% over 2 yr
• ON: Decrease in prescriptions highly suggestive of misuse (1.6% to 1.0%, 2011 to 2013)
Prescription monitoring programs
(BC, ON, NS Results)
• Decrease in oxycodone dispensing
• Increase in other opioid prescribing
Oxycodone delisting
(Ontario Results)
Murphy Y, Goldner EM, Fischer B. Prescription Opioid Use, Harms and Interventions in Canada: A Review
Update of New Developments and Findings since 2010. Pain Physician. 2015 Jul-Aug;18(4):E605-14.
Gomes T, Juurlink DN. Opioid Use and Overdose: What We've Learned in Ontario. Healthc Q. 2016;18(4):8-11.
Canadian Trends: Interventions
• Self-referred MD’s no difference
• CPSO-referred MDs decreased (prior to course) – sustained 2yr
Physician education
(Ontario Results)
• Oxycodone prescribing slowed when US news coverage of the problem peaked in 2001 and declined when Canadian news coverage peaked 2004
Media reporting
(NS Results)
Murphy Y, Goldner EM, Fischer B. Prescription Opioid Use, Harms and Interventions in Canada: A Review
Update of New Developments and Findings since 2010. Pain Physician. 2015 Jul-Aug;18(4):E605-14.
Gomes T, Juurlink DN. Opioid Use and Overdose: What We've Learned in Ontario. Healthc Q. 2016;18(4):8-11.
Comprehensive Interventions
• 2016 Washington State Interagency Opioid Working Plan http://stopoverdose.org/
Washington State
• Action Plan to Address the Opioid Epidemic in The Commonwealth (2015)
Massachusetts
• Rhode Island’s Strategic Plan on Addiction and Overdose (2015) Rhode Island
• Prescription Drug Abuse Prevention Plan (2011) • https://www.whitehouse.gov/the-press-
office/2016/02/02/president-obama-proposes-11-billion-new-funding-address-prescription
United States
Comprehensive Interventions
• Alberta’s Mental Health Review Committee Recommendations (2015) Alberta
• Drug Overdose and Alert Partnership (DOAP) Opioid Overdose Response Strategy (DOORS) (2016)
British Columbia
• First Do No Harm: Responding to Canada’s Prescription Drug Crisis (2013)
Canada
Comprehensive Interventions
Prevention & Rescue
Education Treatment &
Harm Reduction
Surveillance
& Research
Enforcement
& Regulation
Washington State
Approximately 600 opioid-related deaths/ yr
(Based on 6,724,540 population ~ 8.9/ 100,000)
Interagency Opioid Working Plan:
http://stopoverdose.org/FINAL%20State%20Response%20Plan_Jan2016.pdf
Goals Prevent
opioid misuse
and abuse
Treat opioid
dependence
Prevent
deaths from
overdose
Use data to
monitor and
evaluate
Actions Improve
prescribing
practices
Expand access
to treatment
Distribute
naloxone to
people who
use heroin
Optimize and
expand data
sources
Washington State
State Prescribing Guidelines 2007 (dose limit 120mg/d)
2006-2010 Results
Fulton-Kehoe D, et al. Opioid poisonings in Washington State Medicaid: trends, dosing, and
guidelines. Med Care. 2015 Aug;53(8):679-85. (Including references within)
Medicaid Population
• Decreased high dose prescribing
• Leveling off of opioid poisonings
General Population
• Steady rate of opioid poisonings
• Decrease hospitalized opioid poisonings
Workers’ compensation
• Decrease in workers developing chronic opioid use
• Decrease high dose prescribing
• No decrease in non-fatal opioid poisonings
CDC: Washington State drug overdose deaths 2013 vs. 2014: -0.7%
Washington State
State Prescribing Guidelines 2007 (dose limit 120mg/d)
2006-2010 Results
Fulton-Kehoe D, et al. Opioid poisonings in Washington State Medicaid: trends, dosing, and
guidelines. Med Care. 2015 Aug;53(8):679-85. (Including references within)
Next steps:
Most opioid poisonings: At lower prescribed doses (high dose 16.7%)
Not in chronic users (chronic 40%)
Co-prescription of sedatives (~50% of decedents)
Local strategy: Kingston
• 4 pillar community overdose prevention strategy
Pillars
• Regional coroner, police, emergency departments, street health, prison health, pain and addiction specialists, LHIN
Partners
• Community adopting CDC guidelines – basis for new emergency department opioid guidelines
Guidelines
• Use local data from ODPRN on opioid hospitalization rates
• Local surveillance system Data
Communication with Dr. Kieran Moore, AMOH, KFL&A Public Health
Naloxone
• Systematic Reviews – at least 4 • Time series analysis: decreased mortality
• Weaker studies: improve knowledge and attitudes
• Calling EMS: 29-100%, 6 of 9 studies <50% • (Clark 2014, EMCDDA 2015, Giglio 2015, McAuley 2015)
Evidence
• World Health Organization (2014) • People likely to witness an opioid overdose
should have access to naloxone and be instructed in its administration
Guidance
• Take-Home Naloxone in Canada
• 7 of 13 provinces and territories
• At risk, first responders, pharmacies • (CCENDU 2016)
Implementation
Natural history of disease timeline
Susceptible Subclinical Diseases
Clinical Disease
Recovery, Disability or Death
Opioids
(Exposure)
Naloxone
(Intervention)
Adapted from:
http://www.cdc.gov/ophss/csels/dsepd/ss1978/lesson1/section9.html
Prevention
Kolodny A, et al. The prescription opioid and heroin crisis: a public health approach to
an epidemic of addiction. Annu Rev Public Health. 2015 Mar 18;36:559-74.
Primary
• Prevent new addictions
• Avoid opioids; cautious opioid prescribing; safely discard unused opioids; social marketing
Secondary
• Early identification of addiction
• Point of care use of prescription drug monitoring programs; urine drug screening
Tertiary
• Access to addiction treatment; Harm reduction
• Pharmacotherapy and psychosocial
• Needle exchange, supervised injection services; naloxone
Education
Opioid Prescribing Guidelines
Issues
Best practices guidelines ≠ improved care
Need effective implementation strategies
Self-regulation, limited information on
physician performance
Physician education limited: chronic pain,
addictions, and mental health
Treatment
Medication-Assisted Treatment (MAT) Methadone and Buprenorphine/Naloxone
Evidence: decreased mortality, reduced opioid use, treatment retention (Mattick 2014; Sokya 2011)
Psychological (i.e., counseling)
Issues
Primary care structure No incentives to manage mental health and
addictions
Non-physician services do not have public coverage
Access to evidence-based services
Quality of care
Monitoring and Surveillance
Prescription Drug Monitoring Programs
• No studies evaluating the effectiveness of PDMPs on outcomes related to overdose, addiction, abuse, or misuse (CDC 2016)
Evidence
• Prescriber should review PDMP profile at start of opioid therapy and periodically after (CDC 2016)
Guidance
• 7 provinces operational, 2 developing, 1 territory linked to a province
• Real-time prescriber access limited (Sproule 2015)
Implementation:
Adapt Familiar Public Health Practices?
Adverse Event Following Immunization Reporting
Adverse Event on Opioid Therapy Reporting
Antibiotic Stewardship Opioid Stewardship
Foodborne Illness Outbreak Response Protocol
Opioid Poisoning Outbreak Response
Protocol
Best Practices for Infection Prevention and Control
Programs in Ontario
Best Practices for Opioid Control Programs in
Ontario
Is fentanyl a public health issue?
Three main public health functions:
1. The assessment and monitoring of the health of
communities and populations at risk to identify health
problems and priorities.
2. The formulation of public policies designed to
solve identified local and national health problems and
priorities.
3. To assure that all populations have access to
appropriate and cost-effective care, including
health promotion and disease prevention services.
http://www.who.int/trade/glossary/story076/en/
What is public health?
“Public health refers to all organized measures (whether public or private) to prevent disease, promote health, and prolong life among the population as a whole. Its activities aim to provide conditions in which people can be healthy and focus on entire populations, not on individual patients or diseases. Thus, public health is concerned with the total system and not only the eradication of a particular disease.” http://www.who.int/trade/glossary/story076/en/
What is a public health priority?
Magnitude of the problem: How much of a burden is placed on the community, in terms of financial losses, years of potential life lost, potential worsening of the problem, etc.?
Seriousness of the consequences of the problem: What benefits would accrue from correcting the problem? Would other problems be reduced in magnitude if the problem were corrected?
Feasibility of correcting the problem: Can the problem be addressed with existing technology, knowledge, and resources? How resource-intensive are the interventions?
http://www.cdc.gov/od/ocphp/nphpsp/documents/Prioritization.pdf
Conclusions
The problem of opioid-related harms in Canada is
BIG
Complex
Worsening
The solutions need to be
Comprehensive
Timely
Evaluated
Public health practitioners have excellent
training and skills to be part of the solution!
Other Key References Broyles LM, et al. Confronting inadvertent stigma and pejorative language in addiction scholarship: a recognition and
response. Subst Abus. 2014;35(3):217-21.
Center for Behavioral Health Statistics and Quality. (2015). Behavioral health trends in the United States: Results from
the 2014 National Survey on Drug Use and Health (HHS Publication No. SMA 15-4927, NSDUH Series H-50).
Retrieved from http://www.samhsa.gov/ data/
Clark AK et al. A systematic review of community opioid overdose prevention and naloxone distribution programs.
J Addict Med. 2014 May-Jun;8(3):153-63.
European Monitoring Centre for Drugs and Drug Addiction (EMCDDA)
http://www.emcdda.europa.eu/publications/emcdda-papers/naloxone-effectiveness
Felitti VJ et al. Relationship of childhood abuse and household dysfunction to many of the leading causes of death in
adults. The Adverse Childhood Experiences (ACE) Study. Am J Prev Med. 1998 May;14(4):245-58.
Fulton-Kehoe D1, et al. Opioid poisonings in Washington State Medicaid: trends, dosing, and guidelines. Med Care.
2015 Aug;53(8):679-85.
Giglio RE et al. Effectiveness of bystander naloxone administration and overdose education programs: a meta-
analysis.. Injury Epidemiology. 2015. 2:10.
Gomes T1, Mamdani MM, Dhalla IA, Paterson JM, Juurlink DN. Opioid dose and drug-related mortality in patients
with nonmalignant pain. Arch Intern Med. 2011 Apr 11;171(7):686-91.
Other Key References Juurlink DN1, Dhalla IA. Dependence and addiction during chronic opioid therapy. J Med Toxicol. 2012 Dec;8(4):393-
9.
Larochelle MR, et al. Opioid Prescribing After Nonfatal Overdose and Association With Repeated Overdose: A
Cohort Study. Ann Intern Med. 2016 Jan 5;164(1):1-9.
McAuley A et al. Exploring the life-saving potential of naloxone: A systematic review and descriptive meta-analysis of
take home naloxone (THN) programmes for opioid users. Int J Drug Policy. 2015 Dec;26(12):1183-8.
National Advisory Committee on Prescription Drug Misuse. (2013). First do no harm: Responding to Canada’s
prescription drug crisis. Ottawa: Canadian Centre on Substance Abuse.
Persaud N. Questionable content of an industry-supported medical school lecture series: a case study. J Med Ethics.
2014 Jun;40(6):414-8.
Sproule B. (2015). Prescription Monitoring Programs in Canada: Best Practice and Program Review, Ottawa, ON,
Canadian Centre on Substance Abuse.