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Piret EM, Milloy MJ, Voon P, Choi J, DeBeck K, Hayashi K, Kerr T. Denial of prescription pain medication among people who use drugs in Vancouver, Canada. Harm Reduct J 2024; 21:72. [PMID: 38549113 PMCID: PMC10979632 DOI: 10.1186/s12954-024-00956-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/03/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND People who use drugs experience pain at two to three times the rate of the general population and yet continue to face substantial barriers to accessing appropriate and adequate treatment for pain. In light of the overdose crisis and revised opioid prescribing guidelines, we sought to identify factors associated with being denied pain medication and longitudinally investigate denial rates among people who use drugs. METHODS We used multivariable generalized estimating equations analyses to investigate factors associated with being denied pain medication among people who use drugs reporting pain in three prospective cohort studies in Vancouver, Canada. Analyses were restricted to study periods in which participants requested a prescription for pain from a healthcare provider. Descriptive statistics detail denial rates and actions taken by participants after being denied. RESULTS Among 1168 participants who requested a prescription for pain between December 2012 and March 2020, the median age was 47 years and 63.0% were male. Among 4,179 six-month observation periods, 907 (21.7%) included a report of being denied requested pain medication. In multivariable analyses, age was negatively associated with prescription denial (adjusted odds ratio [AOR] = 0.98, 95% confidence interval [CI]:0.97-0.99), while self-managing pain (AOR = 2.48, 95%CI:2.04-3.00), experiencing a non-fatal overdose (AOR = 1.51, 95%CI:1.22-1.88), engagement in opioid agonist therapy (AOR = 1.32, 95%CI:1.09-1.61), and daily use of heroin or other unregulated opioids (AOR = 1.32, 95%CI:1.05-1.66) were positively associated with being denied. Common actions taken (n = 895) after denial were accessing the unregulated drug supply (53.5%), doing nothing (30.6%), and going to a different doctor/emergency room (6.1%). The period following the introduction of new prescribing guidelines was not associated with a change in denial rates. CONCLUSIONS A substantial proportion of people who use drugs continue to be denied prescriptions for pain, with such denial associated with important substance use-related harms, including non-fatal overdose. Guidelines specific to the pharmaceutical management of pain among people who use drugs are needed.
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Affiliation(s)
- Evelyne Marie Piret
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
- School of Population and Public Health, University of British Columbia, 5804 Fairview Avenue, Vancouver, BC, V6T 1Z3, Canada
| | - M-J Milloy
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
- Division of Social Medicine, Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada
| | - Pauline Voon
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
| | - JinCheol Choi
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
| | - Kora DeBeck
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
- School of Public Policy, Simon Fraser University, 515 West Hastings St, Vancouver, BC, V6B 5K3, Canada
| | - Kanna Hayashi
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada
- Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Thomas Kerr
- British Columbia Centre On Substance Use, 1045 Howe Street, Vancouver, BC, V6Z 2A9, Canada.
- Division of Social Medicine, Department of Medicine, University of British Columbia, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada.
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Panagiotoglou D. Evaluating the population-level effects of overdose prevention sites and supervised consumption sites in British Columbia, Canada: Controlled interrupted time series. PLoS One 2022; 17:e0265665. [PMID: 35316284 PMCID: PMC8939833 DOI: 10.1371/journal.pone.0265665] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 03/04/2022] [Indexed: 11/18/2022] Open
Abstract
Background
On 14 April 2016, British Columbia’s Provincial Medical Health Officer declared the overdose crisis a public health emergency, sanctioning the implementation of new overdose prevention sites (OPS) and supervised consumption sites (SCS) across the province.
Methods
We used the BC Centre for Disease Control’s Provincial Overdose Cohort of all overdose events between 1 January 2015 and 31 December 2017 to evaluate the population-level effects of OPSs and SCSs on acute health service use and mortality. We matched local health areas (LHA) that implemented any site with propensity score matched controls and conducted controlled interrupted time series analysis.
Results
During the study period, twenty-five OPSs and SCSs opened across fourteen of British Columbia’s 89 LHAs. Results from analysis of LHAs with matched controls (i.e. excluding Vancouver DTES) were mixed. Significant declines in reported overdose events, paramedic attendance, and emergency department visits were observed. However, there were no changes to trends in monthly hospitalization or mortality rates. Extensive sensitivity analyses found these results persisted.
Conclusions
We found OPSs and SCSs reduce opioid-related paramedic attendance and emergency department visit rates but no evidence that they reduce local hospitalization or mortality rates.
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Affiliation(s)
- Dimitra Panagiotoglou
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada
- * E-mail:
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Xu K, Nolan S, Mihic T, Ti L. Improving Opioid Stewardship Programs Through Shared Decision Making. J Am Pharm Assoc (2003) 2022; 62:697-700. [DOI: 10.1016/j.japh.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 10/19/2022]
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Jones W, Kaoser R, Fischer B. Patterns, trends and determinants of medical opioid utilization in Canada 2005-2020: characterizing an era of intensive rise and fall. Subst Abuse Treat Prev Policy 2021; 16:65. [PMID: 34521418 PMCID: PMC8438558 DOI: 10.1186/s13011-021-00396-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2021] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Into the 21st century, the conflation of high rates of chronic pain, systemic gaps in treatment availability and access, and the arrival of potent new opioid medications (e.g., slow-release oxycodone) facilitated strong increases in medical opioid dispensing in Canada. These persisted until post-2010 alongside rising opioid-related adverse (e.g., morbidity/mortality) outcomes. We examine patterns, trends and determinants of opioid dispensing in Canada, and specifically its 10 provinces, for the years 2005-2020. METHODS Raw data on prescription opioid dispensing were obtained from a large national community-based pharmacy database (IQVIA/Compuscript), converted into Defined-Daily-Doses/1,000 population/day for 'strong' and 'weak' opioid categories per standard methods. Dispensing by opioid category and formulations by province/year was assessed descriptively; regression analysis was applied to examine possible segmentation of over-time strong opioid dispensing. RESULTS All provinces reported starkly increasing strong opioid dispensing peaking 2011-2016, and subsequent marked declines. About half reported lower strong opioid dispensing in 2020 compared to 2005, with continuous inter-provincial differences of > 100 %; weak opioids also declined post-2011/12. Segmented regression suggests breakpoints for strong opioids in 2011/12 and 2015/16, coinciding with main interventions (e.g., selective opioid delisting, new prescribing guidelines) towards more restrictive opioid utilization control. CONCLUSIONS We characterized an era of marked rise and fall, while featuring stark inter-provincial heterogeneity in opioid dispensing in Canada. While little evidence for improvements in pain care outcomes exists, the starkly inverting opioid utilization have been associated with extensive population-level harms (e.g., misuse, morbidity, mortality) over-time. This national case study raises fundamental questions for opioid-related health policy and practice.
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Affiliation(s)
- Wayne Jones
- Centre for Applied Research in Mental Health and Addiction (CARMHA), Faculty of Health Sciences, Simon Fraser University, Suite 2400, 515 W. Hastings Street, British Columbia, Vancouver, Canada
| | - Ridhwana Kaoser
- Centre for Applied Research in Mental Health and Addiction (CARMHA), Faculty of Health Sciences, Simon Fraser University, Suite 2400, 515 W. Hastings Street, British Columbia, Vancouver, Canada
| | - Benedikt Fischer
- Centre for Applied Research in Mental Health and Addiction (CARMHA), Faculty of Health Sciences, Simon Fraser University, Suite 2400, 515 W. Hastings Street, British Columbia, Vancouver, Canada.
- Faculty of Medical and Health Sciences, University of Auckland, 85 Park Road, Auckland, 1023, Grafton, New Zealand.
- Department of Psychiatry, University of Toronto, 250 College Street, Toronto, Ontario, Canada.
- Department of Psychiatry, Federal University of São Paulo (UNIFESP), R. Sena Madureira, 1500 - Vila Clementino, São Paulo, Brazil.
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Lim J, McCracken RK, Panagiotoglou D. Opioid prescribing practice standard in British Columbia, Canada: Rationale, controversies, and directions. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2021; 97:103363. [PMID: 34314955 DOI: 10.1016/j.drugpo.2021.103363] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 06/19/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
British Columbia (BC) has been the hardest hit province in Canada's ongoing overdose epidemic. As part of the province-level response, the College of Physicians and Surgeons of British Columbia (CPSBC) implemented the "Safe Prescribing of Drugs with Potential for Misuse/Diversion" practice standard in June 2016. The practice standard established specific dose and quantity thresholds for opioid prescribing as professional and ethical conduct expectations for physicians in BC. This supply side intervention was based on expert interpretation of available evidence of non-superiority of opioid treatments to non-opioid treatments. However, the potential for misinterpretation of dosage ceiling thresholds and the negative repercussions to patients that could follow raised concerns among both physicians and patients. We provide a comprehensive overview of the rationale, early impact, controversies, and potential shortcomings of the CPSBC's practice standard.
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Affiliation(s)
- Jihoon Lim
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Canada
| | - Rita K McCracken
- Department of Family Practice, University of British Columbia, Canada
| | - Dimitra Panagiotoglou
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Canada.
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Furlan AD, Harvey AM, Chadha R. Warning from Canada: Latin America, South Africa and India may face an opioid epidemic in the coming years. J Glob Health 2021; 10:010324. [PMID: 32257147 PMCID: PMC7101494 DOI: 10.7189/jogh.10.010324] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Andrea D Furlan
- Institute for Work & Health, Toronto ON, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto Rehabilitation Institute, University Health Network, Toronto, Ontario, Canada
| | - Alexandra M Harvey
- Munk School of Global Affairs, University of Toronto, Toronto, Ontario, Canada
| | - Rashmi Chadha
- Vancouver Coastal Health, Vancouver, British Columbia, Canada.,Department of Family Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Influence of opioid prescribing standards on health outcomes among patients with long-term opioid use: a longitudinal cohort study. CMAJ Open 2020; 8:E869-E876. [PMCID: PMC8568298 DOI: 10.9778/cmajo.20190228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2023] Open
Abstract
Background: The College of Physicians and Surgeons of British Columbia introduced opioid prescribing standards and guidelines in mid-2016 in British Columbia. We evaluated impacts of the standards and guidelines on health outcomes. Methods: We conducted a longitudinal study with repeated measures using administrative data from December 2013 to March 2017. The study included BC patients with long-term use of prescription opioids. Those with a history of long-term care, palliative care or cancer were excluded. Patients were followed for a 12-month prepolicy period and 10-month postpolicy period and compared with historical controls. We estimated changes in level (sudden changes) and monthly trend (gradual changes) of rates of opioid overdose hospital admission, and secondary outcomes of all-cause hospital admission, all-cause emergency department visits, opioid overdose mortality and all-cause mortality. Results: The study included 68 113 patients in the main cohort and 68 429 historical controls. We did not find significant changes to opioid overdose hospital admissions in level (adjusted rate ratio [RR] 0.83, 95% confidence interval [CI] 0.45–1.54) or in trend (adjusted RR 1.00, 95% CI 0.91–1.10). All-cause hospital admissions declined in level but may have increased in trend, suggesting that a temporary decrease in hospital admissions may have occurred. We found no significant changes in all-cause emergency department visits, opioid overdose mortality or all-cause mortality. Interpretation: Among patients with a history of long-term prescription opioid use, the regulatory prescribing standards and guidelines were not associated with changes in opioid overdose hospital admissions, all-cause emergency department visits, opioid overdose mortality or all-cause mortality, or with a sustained reduction in all-cause hospital admissions, over a 10-month period after they were introduced. Future research should investigate whether opioid prescribing standards or guidelines are associated with use of nonopioid analgesic medications or nonpharmacologic treatments.
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Panagiotoglou D, McCracken R, Lavergne MR, Strumpf EC, Gomes T, Fischer B, Brackett A, Johnson C, Kendall P. Evaluating the intended and unintended consequences of opioid-prescribing interventions on primary care in British Columbia, Canada: protocol for a retrospective population-based cohort study. BMJ Open 2020; 10:e038724. [PMID: 33154053 PMCID: PMC7646336 DOI: 10.1136/bmjopen-2020-038724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 08/08/2020] [Accepted: 10/01/2020] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Between 2015 and 2018, there were over 40 000 opioid-related overdose events and 4551 deaths among residents in British Columbia (BC). During this time the province mobilised a variety of policy levers to encourage physicians to expand access to opioid agonist treatment and the College of Physicians and Surgeons of British Columbia (CPSBC) released a practice standard establishing legally enforceable minimum thresholds of professional behaviour in the hopes of curtailing overdose events. Our goal is to conduct a comprehensive investigation of the intended and unintended consequences of these policy changes. Specifically, we aim to understand the effects of these measures on physician prescribing behaviours, identify physician characteristics associated with uptake of the new measures, and measure the effects of the policy changes on patients' access to quality primary care. METHODS AND ANALYSIS This is a population-level, retrospective cohort study of all BC primary care physicians who prescribed any opioid medication for opioid-use disorder or chronic non-cancer pain during the study period, and their patients. The study period is 1 January 2013-31 December 2018, with a 1-year wash-in period (1 January 2012-31 December 2012) to exclude patients who initiated long-term opioid treatment prior to our study period or whose pain type (ie, 'chronic non-cancer', 'acute', 'cancer or palliative', or 'other') cannot be confirmed. The project combines five administrative health datasets under the authority of the BC Ministry of Health, with the CPSBC's Physician Registry, BC Cancer Agency's Cancer Registry and Vital Statistics' Mortality data. We will create measures of prescribing concordance, access, continuity, and comprehensiveness to assess primary care delivery and quality at both the physician and patient level. We will use generalised estimating equations, interrupted time series, mixed effects models, and funnel plots to identify factors related to changes in prescribing and evaluate the impact of the changes to prescribing policies. Results will be reported using appropriate Enhancing the QUAlity and Transparency Of health Research guidelines (eg, STrengthening the Reporting of OBservational studies in Epidemiology). ETHICS AND DISSEMINATION This study has been approved by McGill University's Institutional Review Board (#A11-M55-19A), and the University of British Columbia's Research Ethics Board (#H19-03537). We will disseminate results via a combination of open access peer-reviewed journal publications, conferences, lay summaries and OpEds.
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Affiliation(s)
- Dimitra Panagiotoglou
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Québec, Canada
| | - Rita McCracken
- Department of Family Practice, University of British Columbia Faculty of Medicine, Vancouver, British Columbia, Canada
| | - M Ruth Lavergne
- Centre for Applied Research in Mental Health and Addiction, Simon Fraser University, Burnaby, British Columbia, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Erin C Strumpf
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Québec, Canada
- Department of Economics, McGill University, Montreal, Québec, Canada
| | - Tara Gomes
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
- Institute for Clinical Evaluative Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Benedikt Fischer
- Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
- Institute for Mental Health Policy Research, Centre for Addiction and Mental, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | | | - Cheyenne Johnson
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada
- School of Nursing, University of British Columbia, Vancouver, British Columbia, Canada
| | - Perry Kendall
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada
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