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目的了解绵阳市男男性行为者(MSM)近6月性行为特征,分析影响因素。方法采用同伴推动抽样法(RDS),在MSM活动场所定时、定点进行性行为特征及相关因素的招募和寻问式匿名现场调查,多因素分析采用Logis-tic回归。结果共调查400人,近6个月性伴数为1～5人占89.0%,性伴是男朋友(BF)占48.0%、男性商业性伴(MB)占4.5%、一夜情(419)占40.3%、妻子占3.3%、女朋友占7.3%、女性商业性伴和其他各占0.8%。认识性伴场所为酒吧等占16.3%、浴室等占1.5%、公园等占16.0%、互联网占64.3%、家里占6.3%、其他占9.3%。近6月发生肛交做“1”、做“0”、口交、阴道交安全套使用率差异有统计学意义(P﹤0.01),安全套坚持使用率依次分别为47.8%、41.5%、9.9%、22.1%。近6月做“1”肛交安全套使用与公园认识性伴、性伴主要来自“一夜情”、不知道性伴健康状况呈负关联(OR分别为0.278、0.440、0.015,P﹤0.01),近6月阴道交安全套使用与双向性取向、近6月性伴数﹥5、近6月男男肛交安全套使用率呈正关联(OR分别为3.577、4.739、19.976,P﹤0.05),与高中及以上文化呈负关联(OR为0.320,P﹥0.05)。近6月发生过群交占3.3%,与近6月男男肛交数、浴室认识性伴呈正关联(OR分别为2.864、9.866,P﹤0.05)。结论绵阳市MSM人群大多性关系复杂,性伴认识以网络、公园等高危场所为主,安全套使用率较低,艾滋病传播高危因素普遍存在,因此应针对性加大干预力度。
Objective To understand the characteristics of sexual behavior of MSM in Mianyang in recent 6 months and analyze the influencing factors. Methods The companion push sampling method (RDS) was used to conduct regular and site-specific recruitment of sexual behavior and related factors at the site of MSM activities and anonymous on-site investigation. Multivariate analysis was performed using Logis-tic regression. Results A total of 400 people were surveyed, 89.0% of whom were sex partners in 1 ~ 5 in the past 6 months, 48.0% in male partners (BF), 4.5% in male business partners (MB), 419 40.3%, wife 3.3%, girlfriend 7.3%, female business partner and others 0.8% each. 16.3% knew of partner places for bars, 1.5% for bathrooms, 16.0% for parks, 64.3% for the Internet, 6.3% for the home, and 9.3% for the rest. In the past 6 months, there was significant difference in the rate of condom use (P0.81), condom use rate (47.8%, 41.5%, respectively) 9.9%, 22.1%. Nearly 6 months to do “1 ” anal condom use and park to know sexual partners, sexual partners mainly from “one-night stand”, do not know the sexual health status was negatively correlated (OR = 0.278,0.440,0.015, P <0.01 ). In recent 6 months, the rate of condom use in vaginal intercourse was positively correlated with the rate of condom use in men and women in the past 6 months (OR = 3.577, 4.739, 19.976, respectively; P <0.05) High school and above culture was negatively correlated (OR was 0.320, P> 0.05). Nearly 6 months occurred in 3.3% of the population, with the number of male and female anal intercourse in recent 6 months, bath-related sexual partners were positively correlated (OR = 2.864,9.866, P <0.05). Conclusions MSM population in Mianyang City has most of the complex sexual relations. The cognition of sexual partners is mainly in high-risk places such as internet and parks. The condom use rate is low, and the risk factors of AIDS transmission are ubiquitous. Therefore, intervention efforts should be intensified.