He Qun, Wang Ye, Lin Peng, Liu Yongying, Yang Fang, Fu Xiaobing, Li Yan, Sun Baoshan, Li Jie, Zhao Xixi, Mandel Jeffrey, Jain Sheila, McFarland Willi
Center for Disease Control and Prevention of Guangdong Province, Guangzhou, China.
AIDS Behav. 2006 Jul;10(4 Suppl):S17-23. doi: 10.1007/s10461-006-9125-3. Epub 2006 Jun 27.
To assess the potential for HIV acquisition among men who have sex with men (MSM) in Guangzhou, China, we conducted a cross-sectional, anonymous, face-to-face survey of MSM in the metropolitan area of Guangzhou, China. As a pilot recruitment for a cohort study, participants were recruited by convenience sampling through newspaper and television advertising, website information, and respondent referral. Blood samples were tested for HIV, hepatitis B (HBV), hepatitis C (HCV), and syphilis. Client-centered HIV and STD counseling was provided.A total of 201 MSM were interviewed and 200 blood samples were tested. The prevalence of HIV antibody was 0% (97.5% CI 0-1.8%); 17.5% of MSM were HBV surface antigen positive; 1.0% had HCV antibodies; 10.5% had antibodies to syphilis. Syphilis seropositivity was associated with sex with a foreign MSM in the last six months and 10.4% reported sex with a foreign MSM overall. The majority (54.7%) reported unprotected anal sex with other men. Nearly one-third (31.8%) had regular female partners; 25.9% were currently married to a woman; 6% had casual female partners; 4.5% had sex with a female sex worker; 4.5% had sex with a male sex worker; and 12.9% had unprotected vaginal sex and unprotected anal sex with a man in the past six months. Only one MSM reported injection drug use (0.5%). The currently low prevalence of HIV but high level of unprotected anal sex, high prevalence of syphilis infection, and sexual networks that include foreign MSM point to a transient window for HIV prevention among MSM in Guangzhou. We recognize challenges to recruiting a representative sample of MSM and retaining them in longitudinal cohort studies.
为评估中国广州男男性行为者（MSM）感染艾滋病毒的可能性，我们在中国广州大都市区对MSM开展了一项横断面、匿名、面对面调查。作为一项队列研究的试点招募工作，参与者通过报纸和电视广告、网站信息以及受访者推荐等便利抽样方式招募。对血样进行了艾滋病毒、乙型肝炎（HBV）、丙型肝炎（HCV）和梅毒检测。提供了以服务对象为中心的艾滋病毒和性传播疾病咨询。
共访谈了201名MSM，并检测了200份血样。艾滋病毒抗体患病率为0%（97.5%可信区间0 - 1.8%）；17.5%的MSM乙型肝炎表面抗原呈阳性；1.0%有丙型肝炎抗体；10.5%有梅毒抗体。梅毒血清学阳性与过去六个月与外国MSM发生性行为有关，总体上10.4%的人报告与外国MSM发生过性行为。大多数人（54.7%）报告与其他男性有过无保护肛交。近三分之一（31.8%）有固定女性性伴侣；25.9%目前与女性结婚；6%有临时女性性伴侣；4.5%与女性性工作者发生过性行为；4.5%与男性性工作者发生过性行为；12.9%在过去六个月与男性有过无保护阴道性交和无保护肛交。只有一名MSM报告有注射吸毒行为（0.5%）。目前艾滋病毒患病率较低，但无保护肛交比例高、梅毒感染率高以及性网络中包括外国MSM，这表明广州MSM中存在预防艾滋病毒的短暂窗口期。我们认识到在招募具有代表性的MSM样本并将他们纳入纵向队列研究方面存在挑战。
