深圳市502例男男性行为者HIV/梅毒感染调查

目的了解深圳市男男性行为者（Menwhohavesexwithmen，MsM）H1v／梅毒感染情况及高危行为特征，为今后有针对性地实施有效干预措施提供科学依据。方法知情同意原则下，收集深圳市2012年MSM人群HIW梅毒监测资料，进行单因素和多因素Logistic回归分析。结果共502例接受自愿咨询检测，42．6％性角色以主动为主，25．5％以被动为主，30．1％二者兼有，1．8％极少肛交或多口交；半年内68．3％肛交性伴数≥2个，65．3％口交性伴数t〉2个；40．9％半年内肛交时每次使用安全套，3．6％半年内口交时每次使用安全套，44．5％半年内与女性性交时每次使用安全套。梅毒感染率为18．3％，HIV感染率为9．8％，梅毒合并HIV感染率为5．0％；多因素Logistic回归分析结果表明：性角色、肛交性伴数是MSM人群感染HIV的影响因素，HIV主动检测史、性角色、做过男男性工作者是MSM人群感染梅毒的影响因素。结论深圳市MSM人群HIV感染率仍呈上升趋势，应加强健康教育和行为干预工作，以有效阻断HIV传播。

Prevalence of HIV and syphilis infection among 502 men who have sex with men in Shenzhen.

Objective To understand the prevalence of HIV and syphilis infection and characteristics of high risk behavior among men who have sex with men （MSM） in Shenzhen. Methods HIV and syphilis surveillance data were collected with informed consent among MSM in Shenzhen in 2012 and analyzed by univariate and multivariate logistic regression. Results A total of 502 MSM were enrolled and received voluntary counseling and testing, 42.6% were predominantly inserted partners,25.5% were receptive partners, 30.1% were both inserted and receptive partners and only 1.8% seldom had anal sex or always had oral sex. In the last 6 months, 68.3% reported having had more than one sex partners for anal sex, 65.3% reported having had more than one sex partners for oral sex. In the last 6 months, 40.9% used condoms for every act of anal sex, 3.6% used condoms for every act of oral sex and 44.5% used condoms for every act of vaginal sex with female sex partners. The infection rates of syphilis, HIV,and syphilis/HIV co-infection among them were 18.3%,9.8%, and 5.0% respectively. The results of multivariate logistic regression analysis showed that HIV infection was significant associated with role in homosexual behavior and the number of anal sex partners in the last 6 months, and syphilis infection was significant associated with test history for HIV, role in homosexual behavior and ever been money boy. Conclusion The prevalence of HIV infection among MSM in Shenzhen is still rising. Health education and behavioral intervention should be strengthened to prevent HIV transmission effectively.