Crystal methamphetamine use and initiation among gay, bisexual, and other men who have sex with men living with HIV in a treatment as prevention environment

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dc.contributor.authorColyer, Sean P.
dc.contributor.authorMoore, David M.
dc.contributor.authorCui, Zishan
dc.contributor.authorZhu, Julia
dc.contributor.authorArmstrong, Heather
dc.contributor.authorTaylor, Matthew
dc.contributor.authorEdward, Joshua
dc.contributor.authorHoward, Terry
dc.contributor.authorDickie, Chad
dc.contributor.authorOlarewaju, Gbolahan
dc.contributor.authorMontaner, Julio S.G.
dc.contributor.authorHogg, Robert S.
dc.contributor.authorRoth, Eric
dc.contributor.authorLachowsky, Nathan
dc.date.accessioned2024-03-20T16:10:48Z
dc.date.available2024-03-20T16:10:48Z
dc.date.issued2020
dc.description.abstractBackground: Risk compensation in an HIV Treatment as Prevention (TasP) environment may increase high-risk sexual and substance use behaviours among people living with HIV. Objective: To examine recent crystal methamphetamine use/initiation in a longitudinal cohort of gay, bisexual, and other men who have sex with men (GBMSM) living with HIV in Metro Vancouver, Canada. Methods: Eligible participants were GBMSM aged >15 years who reported sex with another man in the past six months. Participants were recruited using respondent-driven sampling and self-completed a computer questionnaire every six months. We used multi-level generalized mixed-effect models to evaluate trends in recent crystal methamphetamine use (past six months), multivariable logistic regression to identify covariates of recent crystal methamphetamine use, and multivariable survival analysis to identify predictors of crystal methamphetamine initiation. Results: Of 207 GBMSM living with HIV at enrollment, 44.3% reported recent crystal methamphetamine use; this remained stable over the study period (2012-2016). HIV treatment optimism was not associated with crystal methamphetamine use/initiation. Crystal methamphetamine use was positively associated with depressive symptomology, sexual escape motivation, transactional sex, number of anal sex partners, condomless anal sex with seroconcordant partners, STIs, and other substance use. Recent crystal methamphetamine use was negatively associated with viral load sorting. Crystal methamphetamine initiation was predicted by escape motivation, transactional sex, and group sex participation. Conclusion: Results suggest that crystal methamphetamine use among GBMSM living with HIV is prevalent and increased crystal methamphetamine use/initiation is not a consequence of TasP public policy
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.description.sponsorshipMomentum is funded through the National Institute on Drug Abuse under grant R01DA031055-01A1 and the Canadian Institutes for Health Research under grants MOP-107544, FND-143342, and PJT-153139. NJL was supported by a CANFAR/CTN Postdoctoral Fellowship Award. DMM and NJL are supported by Scholar Awards from the Michael Smith Foundation for Health Research (#5209, #16863). HLA was supported by a Postdoctoral Fellowship Award from the Canadian Institutes of Health Research (Grant # MFE-152443). JSGM is supported with grants paid to his institution by the British Columbia Ministry of Health and by the US National Institutes of Health under grant R01DA036307; he has also received limited unrestricted funding, paid to his institution, from Abbvie, Bristol-Myers Squibb, Gilead Sciences, Janssen, Merck, and ViiV Healthcare.
dc.identifier.citationColyer, S., Moore, D., Cui, Z., Zhu, J., Armstrong, H. L., Taylor, M., Edward, J., Howard, T. L., Dickie, C., Olarewaju, G., Montaner, J. S. G., Hogg, R. S., Roth, E. A., & Lachowsky, N. J. (2020). Crystal methamphetamine use and initiation among gay, bisexual, and other men who have sex with men living with HIV in a treatment as prevention environment. Substance Use & Misuse, 55(14), 2428– 2437. https://doi.org/10.1080/10826084.2020.1833925
dc.identifier.urihttps://doi.org/10.1080/10826084.2020.1833925
dc.identifier.urihttps://hdl.handle.net/1828/16238
dc.language.isoen
dc.publisherSubstance Use & Misuse
dc.rightsAttribution-NonCommercial 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectmethamphetamine
dc.subjectmen who have sex with men (MSM)
dc.subjectHIV/AIDS
dc.subjectprospective cohort study
dc.subjectstimulant
dc.subjecttreatment as prevention
dc.titleCrystal methamphetamine use and initiation among gay, bisexual, and other men who have sex with men living with HIV in a treatment as prevention environment
dc.typePostprint

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