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Background: Incarcerated populations experience an elevated prevalence of opioid use disorder (OUD). Federal correctional institutions in Canada have increasingly treated OUD among correctional populations via opioid agonist treatment (OAT) - an evidence based pharmacotherapy that works to reduce drug use and related health harms. However, there is limited evidence regarding incarcerated individuals' experiences with institutional-based OAT, as well potential OAT-related community release prospects. This information is important for optimal treatment retention and improved health. To address this knowledge gap, we conducted a longitudinal follow-up study examining OAT-related experiences among federally incarcerated individuals before and after community release. This article focuses on the baseline (pre-release) data., Methods: This mixed-methods study examined OAT-related experiences and release prospects among n = 46 individuals scheduled for community release, recruited from seven federal prisons located in Ontario, Canada. Participants underwent a comprehensive interviewer-administered on-site assessment, including quantitative and qualitative items. Assessment data was furthermore linked to administrative correctional data. Data were analyzed using thematic qualitative and descriptive quantitative approaches., Results: Participants had complex histories with opioid use including related negative health outcomes. Experiences with institutional OAT were divergent and provision was not standardized; those with OAT engagement pre-admission did not experience many challenges, whereas those initiating OAT during incarceration experienced barriers such as treatment waitlists and adverse process experiences. Most participants expressed a preference for buprenorphine-naloxone over methadone, but described difficulties accessing it. Participants were keen to transition into community-based treatment, yet envisaged prospective barriers and facilitators concerning successful reintegration and treatment continuity., Conclusions: Major barriers towards the current administration of OAT in federal correctional systems in Canada exist, including extensive waitlists, non-standardized practices, and challenges accessing preferred OAT formulations; this contributes to sub-optimal treatment. Eliminating waitlists, standardizing OAT provision, providing additional OAT options, and more comprehensive release planning may be essential for treatment retention and positive outcomes., (© 2022. The Author(s).)

Background: The prevalence of illicit drug use among correctional populations is high, and associated with high levels of drug related morbidity risks and harms. The purpose of this study was to examine temporal and regional patterns of illicit drug use among a sample of Canadian federal correctional inmates participating in correctional methadone maintenance treatment (MMT)., Methods: Socio-demographic and drug use data collected from 1272 male federal offenders admitted to Correctional Service Canada's (CSC) MMT program between 2003 and 2008 were examined. Univariate analyses were conducted on inmates' key demographic and correctional characteristics, pre-MMT opioid use and other problematic drug use, and opioid and injecting use while incarcerated. Bivariate associations on drug use measures across regions and over time were computed., Results: Prevalence of heroin use decreased, and prevalence of prescription opioid (PO) use increased over the study period. Significant regional differences existed for PO use, specifically for morphine/hydromorphone and oxycodone use. The majority used opioids and injected while incarcerated, with overall downward trends over time and regional variations. Approximately half the sample indicated a history of lifetime non-opioid problematic drug use, most commonly cocaine (72%) for which substantial regional differences were found., Conclusions: Pre-MMT opioid and other problematic non-opioid drug use in the sample was high. Temporal and regional patterns of drug use observed may reflect developments in the general population, e.g. increasing PO misuse. The observed drug use patterns underscore the need for targeted drug specific prevention/treatment measures in correctional environments beyond existing interventions., (Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.)