Shariati, HeliaArmstrong, Heather L.Cui, ZishanLachowsky, Nathan J.Zhu, JuliaAnand, PraneyRoth, Eric A.Hogg, Robert S.Oudman, GregTonella, ChristinaMoore, David M.2022-08-292022-08-2920172017Shariati, H., Armstrong, H. L., Cui, Z., Lachowsky, N. J., Zhu, J., Anand, P., Roth, E. A., Hogg, R. S., Oudman, G., Tonella, C., & Moore, D. M. (2017). “Changes in Smoking Status Among a Longitudinal Cohort of Gay, Bisexual, and Other Men Who Have Sex With Men in Vancouver, Canada.” Drug and Alcohol Dependence, 179, 370–378. https://doi.org/10.1016/j.drugalcdep.2017.07.025https://doi.org/10.1016/j.drugalcdep.2017.07.025http://hdl.handle.net/1828/14150We would like to thank the Momentum Health Study participants, office staff, community advisory board, and our community agency partners: Health Initiative for Men, YouthCO HIV and Hep C Society, and Positive Living Society of BC.Background—Cigarette smoking is common among gay, bisexual, and other men who have sex with men (GBMSM) and most of the mortality gap between HIV-positive and HIV-negative individuals is attributable to smoking. Methods—We recruited sexually active HIV-positive and HIV-negative GBMSM age ≥16 years using respondent-driven sampling. Study visits occurred every six months for up to four years and included a computer-assisted self-interview and clinical assessment. We conducted bivariate analyses to compare factors associated with “never”, “former”, “daily”, or “non-daily” smoking at baseline and longitudinal mixed effects models to examine factors associated with cessation and (re)initiation. Results—774 participants completed a baseline visit and 525 enrolled in the cohort and completed at least one follow-up visit. At baseline, the median age was 34 years and 31.5% were daily smokers. In follow-up (median=2.5 years), 116 daily or non-daily smokers (41%) quit at least once and of these, 101 (87%) remained former smokers at their last visit. Smoking cessation was positively associated with incomes ≥$60,000 and self-reported excellent health. Alcohol use, ecstasy use, and having a partner who smokes were associated with decreased odds of cessation. Substance use (cannabis, GHB, and crystal methamphetamine) and having a partner who smokes were positively associated with increasing to/resuming daily smoking. HIV-positive GBMSM were more likely to smoke but not more likely to quit. Conclusions—Targeted, culturally relevant smoking cessation resources are needed, especially for HIV-positive GBMSM. Engaging couples in cessation interventions may be useful.ensmoking cessationmen who have sex with menHIVlongitudinalrespondent-driven samplinghealth promotionCentre for Addictions Research of BC (CARBC)Canadian Institute for Substance Use Research (CISUR)PostprintSchool of Public Health and Social PolicyDepartment of Anthropology