Scheim Ayden I, Bauer Greta R, Travers Robb
*Department of Epidemiology & Biostatistics, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, Ontario, Canada; and †Department of Health Sciences, Wilfrid Laurier University, Waterloo, Ontario, Canada.
J Acquir Immune Defic Syndr. 2017 Apr 1;74(4):e89-e96. doi: 10.1097/QAI.0000000000001222.
This study is among the first to examine factors associated with HIV-related sexual risk among transgender men and other transmasculine persons who are gay, bisexual, or have sex with men (T-GBMSM).
In 2009-2010, 433 transgender people in Ontario, Canada, participated in a multimode respondent-driven sampling survey, including 158 T-GBMSM. Analyses were weighted using respondent-driven sampling II methods to adjust for differential recruitment probabilities; confidence intervals (CI) were adjusted for clustering by shared recruiter. Prevalence ratios (PR) for associations with past-year high sexual risk (condomless intercourse outside a seroconcordant monogamous relationship) were estimated using average marginal predictions from logistic regression.
Of T-GBMSM (mean age = 29.8; 52% living full time in felt gender; 25% Aboriginal or persons of color; 0% self-reported HIV positive), 10% had high sexual risk activity in the past year. Among the 34% with a past-year cisgender (non-transgender) male sex partner, 29% had high sexual risk. In multivariable analyses, older age, childhood sexual abuse (adjusted PR, APR = 14.03, 95% CI: 2.32 to 84.70), living full time in one's felt gender (APR = 5.20, 95% CI: 1.11 to 24.33), and being primarily or exclusively attracted to men (APR = 5.54, 95% CI: 2.27 to 13.54) were each associated with sexual risk. Of psychosocial factors examined, past-year stimulant use (APR = 4.02, 95% CI: 1.31 to 12.30) and moderate depressive symptoms (APR = 5.77, 95% CI: 1.14 to 29.25) were associated with higher sexual risk.
T-GBMSM seem to share some HIV acquisition risk factors with their cisgender counterparts. HIV prevention interventions targeting T-GBMSM who are predominantly attracted to men and interventions addressing sequelae of childhood sexual abuse may be warranted.
本研究是首批调查与男同性恋、双性恋或与男性发生性关系的跨性别男性及其他男变女跨性别者(T-GBMSM)中与艾滋病毒相关的性风险因素的研究之一。
2009年至2010年,加拿大安大略省的433名跨性别者参与了一项多模式应答驱动抽样调查,其中包括158名T-GBMSM。分析采用应答驱动抽样II方法进行加权,以调整不同的招募概率;置信区间(CI)通过共享招募者进行聚类调整。使用逻辑回归的平均边际预测估计与过去一年高性风险(血清学一致的一夫一妻制关系之外的无保护性交)相关的患病率比(PR)。
在T-GBMSM中(平均年龄 = 29.8岁;52%全职生活在自我认同的性别中;25%为原住民或有色人种;0%自我报告为艾滋病毒阳性),10%在过去一年有高性风险行为。在过去一年有异性(非跨性别)男性性伴侣的34%的人中,29%有高性风险。在多变量分析中,年龄较大、童年性虐待(调整后的PR,APR = 14.03,95%CI:2.32至84.70)、全职生活在自我认同的性别中(APR = 5.20,95%CI:1.11至24.33)以及主要或仅被男性吸引(APR = 5.54,95%CI:2.27至13.54)均与性风险相关。在所研究的心理社会因素中,过去一年使用兴奋剂(APR = 4.02,95%CI:1.31至12.30)和中度抑郁症状(APR = 5.77,95%CI:1.14至29.25)与较高的性风险相关。
T-GBMSM似乎与其异性恋同龄人有一些相同的艾滋病毒感染风险因素。针对主要被男性吸引的T-GBMSM的艾滋病毒预防干预措施以及针对童年性虐待后遗症的干预措施可能是必要的。