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• W3200327704 abstract "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." @default.
• W3200327704 created "2021-09-27" @default.
• W3200327704 creator A5014948810 @default.
• W3200327704 creator A5031049285 @default.
• W3200327704 creator A5069518894 @default.
• W3200327704 date "2021-09-14" @default.
• W3200327704 modified "2023-10-16" @default.
• W3200327704 title "Patterns, trends and determinants of medical opioid utilization in Canada 2005–2020: characterizing an era of intensive rise and fall" @default.
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• W3200327704 doi "https://doi.org/10.1186/s13011-021-00396-5" @default.
• W3200327704 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8438558" @default.
• W3200327704 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34521418" @default.
• W3200327704 hasPublicationYear "2021" @default.
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