Estimating the size of the gay, bisexual and other men who have sex with men population and identifying syndemic factors and their effect on HIV sexual risk behaviour
department or school: Medicine, Faculty of
department or school: Medicine, Department of
data provider: DSpace
degree campus: UBCV
creator: Duailibe, Felipe
issued: 2024-08-19T16:40:58Z
issued: 2024
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: Introduction: We aimed to (1) estimate the size of the gay, bisexual, and other men who have sex with men population (GBM) in Canada, (2) identify syndemic factors associated with HIV sexual risk behaviour among HIV-negative GBM by creating a network of associations, and (3) apply syndemic theory to examine how factors influence HIV sexual risk behaviour in models of co-occurring epidemics. Methods: In study 1 we used two cycles of Canadian Community Health Survey data (2015-2016 and 2019) to estimate the size of the GBM population in Canada’s four most populous provinces and compare the sociodemographic composition of GBM and non-GBM. In study 2 we used baseline data (2017-2019) from sexually active self-reported HIV-negative GBM in Engage study sites of Montreal, Toronto and Vancouver to estimate HIV sexual risk behaviour. We explored pairwise associations between potential syndemic factors, sociodemographic characteristics and HIV sexual risk behaviour using Somers’ D statistics. We reduced the number of syndemic factors using a variable reduction method. We built logistic regression models for the mediation and product terms analyses. Results: In study 1 estimates of the GBM population were 4.0% in 2015-2016 in Alberta, Ontario, British Columbia and Quebec and 4.9% in British Columbia and Ontario in 2019. In study 2, syndemic factors associated with HIV sexual risk behaviour included childhood sexual abuse (CSA), intimate partner violence (IPV), transactional sex, polysubstance use, and sexual compulsivity. We estimated a statistically significant direct effect for CSA (c' = 0.09, 95% CI 0.01 – 0.17) and total effect of CSA (c = 0.14, 95% CI 0.06 – 0.21) on HIV sexual risk behaviour. The estimated increase in adjusted odds of HIV sexual risk behaviour was 14.0 (95% CI 5.6 – 35.2) for CSA and transactional sex combined, compared to the absence of these factors. Conclusions: In study 1 we observed sexual orientation discordance and an increase in the GBM populatio…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/88964
note: ESTIMATING THE SIZE OF THE GAY, BISEXUAL AND OTHER MEN WHO HAVE SEX WITH MEN POPULATION AND IDENTIFYING SYNDEMIC FACTORS AND THEIR EFFECT ON HIV SEXUAL RISK BEHAVIOUR by Felipe Duailibe B.Sc., Universidade Federal do Piaui, 2011 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Experimental Medicine) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) August 2024 © Felipe Duailibe, 2024 ii The following individuals certify that they have read, and recommend to the Faculty of Graduate and Postdoctoral Studies for acceptance, the thesis entitled: Estimating the size of the gay, bisexual and other men who have sex with men population and identifying syndemic factors and their effect on HIV sexual risk behaviour submitted by Felipe Duailibe in partial fulfillment of the requirements for the degree of Master of Science in Experimental Medicine Examining Committee: Dr. Viviane Dias Lima, Associate Professor, Department of Medicine, UBC Supervisor Dr. David M. Moore, Professor, Department of Medicine, UBC Supervisory Committee Member Dr. Mark Hull, Clinical Assistant Professor, Department of Medicine, UBC Supervisory Committee Member iii Abstract Introduction: We aimed to (1) estimate the size of the gay, bisexual, and other men who have sex with men population (GBM) in Canada, (2) identify syndemic factors associated with HIV sexual risk behaviour among HIV-negative GBM by creating a network of associations, and (3) apply syndemic theory to examine how factors influence HIV sexual risk behaviour in models of co-occurring epidemics. Methods: In study 1 we used two cycles of Canadian Community Health Survey data (2015-2016 and 2019) to estimate the size of the GBM population in Canada’s four most populous provinces and compare the sociodemographic composition of GBM and non-GBM. In study 2 we used baseline data (2017-2019) from sexually active self-reported HIV-negative GBM in En…
has type: Thesis/Dissertation
date issued: 2024-11
is shown at: 10.14288/1.0445098
language: eng
degree discipline: Experimental Medicine
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
contributor: Lima, Viviane Dias
type: Text
identifier URI: http://hdl.handle.net/2429/88964