男男性行为者女性性行为现状及影响因素分析

目的 了解男男性行为者(MSM)女性性行为现状,分析影响因素。方法 采用应答推动抽样法和自编的《绵阳市男性健康调查表》于2009年6—9月对四川省绵阳市400名MSM人群进行了询问式匿名问卷调查。结果 400名MSM人群中,142人第1个性伴是女性,占35.5%;近6个月与女性发生过性行为73人,占18.3%,平均性伴为(1±2.42)人;其中与妻子发生性行为的有13人,占3.3%,与女朋友有性行为29人,占7.3%,与女性商业性工作者有性行为3人,占0.8%;近1次女性性行为安全套使用率为47.9%(35/73),近6个月女性性行为安全套每次使用者占30.1%(23/73);多因素非条件logistic回归分析表明,学历、婚姻状况、性取向、户籍、首次性交对象、性伴居住城市数、近6个月有男性商业性伴(买性)是近6个月女性性行为的主要影响因素(χ²=4.970、0.455、15.419、8.628、11.759、7.379、5.335,P<0.05或P<0.01),高中及以下学历、在婚、双向性取向、首次性对象为女性、性伴居住城市数≥2个、近6个月有男性商业性伴、本市户籍者近6个月女性性行为较多。结论 MSM人群女性性行为所占比例较高,受人口特征、首次性行为对象、城际流动等因素影响,高危性行为较普遍,是艾滋病传播的重点潜在桥梁人群。

Heterosexual behavior and its influencing factors among MSM

Objective To examine heterosexual behavior and its influencing factors among men who have sex with men(MSM).Methods With respondent-driven sampling(RDS),self-administered anonymous questionnaire survey was conducted among 400 MSM in Miaryang city,Sichuan province during June to Sepeember,2009.ResultsAmong the MSM,142(35.5%) had their first sex with women and 73(18.3%) had sex with women in the latest 6 months,whit an average nubmer of partner of 1±2.42.For the 73 MSM having sex with women,13 had sex with their wives,29 with their girlfriends,and 3 with female sex workers and 35(47.9%) used condom in the last sex,23(30.1%) used condom in sex behavior during the latest 6 months.Multivariate unconditional logistic regressions showed that education level,marriage status,sexual orientation,household register,partner of first sex,frequency of city transient of the sex partner,and having comecial sex with male in the latest 6 months were main influencing factors of heterosexual behaviors among the MSM(χ2=4.970,0.455,15.419,8628,11.759,7.379,and 5.335;P<0.05 or P<0.01 for all).The MSM with education lower than senior high school,married,bisexual,having their first sex with women,with the sex partner having more than 2 times of city transient,having sex with male in the latest 6 months,and with local household registration were more likely to have heterosexual behavior.Conclusion A large number of MSM have heterosexual behaviors and and the behaviors are influenced by demographic factors,partners of the first sex,and city transient.The MSM with heterosexual behavior are key groups for AIDS control.