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目的了解深圳市男男性行为者(MSM)肛交多性伴行为特征及影响因素。方法于2011-2015年应用滚雪球法和同伴推动抽样法,在深圳市招募3040名MSM为调查对象。采用一对一问卷调查方法收集其社会人口学特征、HIV检测史、近二年内献血史、药物滥用史、性取向、性角色、既往从事商业性服务工作、既往接受商业性服务史、最近半年内有无女性性伴等;采集静脉血5mL进行梅毒螺旋体抗体和抗-HIV检测。采用单因素和多因素非条件Logistic回归分析MSM肛交多性伴行为的影响因素。结果 2100名(69.08%)MSM报告最近半年内发生过多性伴肛交行为;梅毒、HIV、梅毒合并HIV感染率分别为18.29%、9.77%和5.07%。与单一性伴的MSM相比,有多性伴肛交行为的MSM梅毒感染率、HIV感染率以及梅毒合并HIV感染率较高,差异有统计学意义。多因素Logistic回归分析结果显示,婚姻状况、文化程度、HIV检测史、既往从事商业性服务工作、既往接受商业性服务、性角色,是MSM发生多性伴肛交行为的独立影响因素。结论深圳市MSM多性伴肛交行为普遍,影响因素众多,制订预防控制计划时需全方位考虑。
Objective To investigate the characteristics and influential factors of multiple sexual partners of MSM in Shenzhen. Methods From 2011 to 2015, 3040 MSMs were recruited in Shenzhen City by means of snowballing method and peer promotion sampling method. One-on-one questionnaires were used to collect the characteristics of their socio-demographic, HIV testing history, history of blood donation within the past two years, history of drug abuse, sexual orientation, sexual roles, previous commercial service work, previous acceptance of commercial service history, There are female sexual partners, etc .; collected venous blood 5mL Treponema pallidum antibody and anti-HIV test. Univariate and multivariate non-conditional logistic regression analysis was used to analyze the influential factors of MSM anal sex with multiple sexual partners. Results 2,100 (69.08%) MSM reported the occurrence of sexual intercourse with sexual intercourse over the past six months. The rates of syphilis, HIV and syphilis with HIV infection were 18.29%, 9.77% and 5.07%, respectively. MSM syphilis infection rate, HIV infection rate, and syphilis infection rate were significantly higher in MSM with multiple sexual partners than in single sexual MSM. The difference was statistically significant. Multivariate logistic regression analysis showed that marital status, educational level, history of HIV testing, previous commercial service work, previous acceptance of commercial service and sexual role were the independent influencing factors of MSM sexual intercourse. Conclusion The MSM with multiple sexual partners in Shenzhen is common and has many influencing factors. It is necessary to consider all aspects of the prevention and control plan.