Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study

Abstract Background Stimulant use has been rising among people with opioid use disorder in recent years in North America, alongside a parallel rise in illicit drug toxicity (overdose) deaths. This study aimed to examine the association between stimulant use and overdose mortality. Methods Data from...

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Main Authors: Heather Palis, Chloé Xavier, Sabina Dobrer, Roshni Desai, Kali-olt Sedgemore, Marnie Scow, Kurt Lock, Wenqi Gan, Amanda Slaunwhite
Format: Article
Language:English
Published: BMC 2022-11-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-022-14506-w
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author Heather Palis
Chloé Xavier
Sabina Dobrer
Roshni Desai
Kali-olt Sedgemore
Marnie Scow
Kurt Lock
Wenqi Gan
Amanda Slaunwhite
author_facet Heather Palis
Chloé Xavier
Sabina Dobrer
Roshni Desai
Kali-olt Sedgemore
Marnie Scow
Kurt Lock
Wenqi Gan
Amanda Slaunwhite
author_sort Heather Palis
collection DOAJ
description Abstract Background Stimulant use has been rising among people with opioid use disorder in recent years in North America, alongside a parallel rise in illicit drug toxicity (overdose) deaths. This study aimed to examine the association between stimulant use and overdose mortality. Methods Data from a universal health insurance client roster were used to identify a 20% random general population sample (aged ≥12) in British Columbia, Canada between January 1 2015 and December 31 2018 (N = 1,089,682). Provincial health records were used to identify people who used opioids and/or stimulants. Fatal overdose observed during follow-up (January 12,015- December 312,018) was retrieved from Vital Statistics Death Registry and BC Coroners Service Data. Potential confounders including age, sex, health region, comorbidities and prescribed medications were retrieved from the provincial client roster and health records. Results We identified 7460 people who used stimulants and or opioids. During follow-up there were 272 fatal overdose events. People who used both opioids and stimulants had more than twice the hazard of fatal overdose (HR: 2.02, 95% CI: 1.47-2.78, p < 0.001) compared to people who used opioids only. The hazard of death increased over time among people who used both opioids and stimulants. Conclusions There is an urgent need to prioritize the service needs of people who use stimulants to reduce overdose mortality in British Columbia. Findings have relevance more broadly in other North American settings, where similar trends in opioid and stimulant polysubstance use have been observed.
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spelling doaj.art-200c51400f3841cca24832795ae3fe042022-12-22T03:43:27ZengBMCBMC Public Health1471-24582022-11-0122111010.1186/s12889-022-14506-wConcurrent use of opioids and stimulants and risk of fatal overdose: A cohort studyHeather Palis0Chloé Xavier1Sabina Dobrer2Roshni Desai3Kali-olt Sedgemore4Marnie Scow5Kurt Lock6Wenqi Gan7Amanda Slaunwhite8BC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlBC Centre for Disease ControlAbstract Background Stimulant use has been rising among people with opioid use disorder in recent years in North America, alongside a parallel rise in illicit drug toxicity (overdose) deaths. This study aimed to examine the association between stimulant use and overdose mortality. Methods Data from a universal health insurance client roster were used to identify a 20% random general population sample (aged ≥12) in British Columbia, Canada between January 1 2015 and December 31 2018 (N = 1,089,682). Provincial health records were used to identify people who used opioids and/or stimulants. Fatal overdose observed during follow-up (January 12,015- December 312,018) was retrieved from Vital Statistics Death Registry and BC Coroners Service Data. Potential confounders including age, sex, health region, comorbidities and prescribed medications were retrieved from the provincial client roster and health records. Results We identified 7460 people who used stimulants and or opioids. During follow-up there were 272 fatal overdose events. People who used both opioids and stimulants had more than twice the hazard of fatal overdose (HR: 2.02, 95% CI: 1.47-2.78, p < 0.001) compared to people who used opioids only. The hazard of death increased over time among people who used both opioids and stimulants. Conclusions There is an urgent need to prioritize the service needs of people who use stimulants to reduce overdose mortality in British Columbia. Findings have relevance more broadly in other North American settings, where similar trends in opioid and stimulant polysubstance use have been observed.https://doi.org/10.1186/s12889-022-14506-wOpioid useStimulant useConcurrent substance useOverdoseFatal overdoseCohort study
spellingShingle Heather Palis
Chloé Xavier
Sabina Dobrer
Roshni Desai
Kali-olt Sedgemore
Marnie Scow
Kurt Lock
Wenqi Gan
Amanda Slaunwhite
Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study
BMC Public Health
Opioid use
Stimulant use
Concurrent substance use
Overdose
Fatal overdose
Cohort study
title Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study
title_full Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study
title_fullStr Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study
title_full_unstemmed Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study
title_short Concurrent use of opioids and stimulants and risk of fatal overdose: A cohort study
title_sort concurrent use of opioids and stimulants and risk of fatal overdose a cohort study
topic Opioid use
Stimulant use
Concurrent substance use
Overdose
Fatal overdose
Cohort study
url https://doi.org/10.1186/s12889-022-14506-w
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