男男性接触者性伴网络特征与HIV传播

目的了解男男性接触者（MSM）性伴网络特征,探讨人类免疫缺陷病毒/性传播疾病（HIV/STDs）从该人群向普通人群传播的途径,为开展HIV/STDs的预防与控制提供依据.方法以同性恋酒吧为研究现场,以其中男男性接触者为对象进行匿名问卷调查.调查内容包括社会人口学特征、HIV/STDs感染状况、性伴类型及数量等.结果某市酒吧中MSM的HIV和STDs感染报告率分别为3.4%和10.3%;多性伴现象在MSM中普遍存在,且性伴类型广泛.在最近2个月中,50.0%的MSM有同性偶然性伴,17.8%有同性商业性伴,63.8%目前有同性固定性伴.曾有过异性性伴者为55.7%.拥有3种类型性伴者为19.5%,4种类型性伴者为12.6%.拥有不同类型性伴的MSM亚群之间相互关联,核心亚群为拥有异性性伴和拥有同性商业性伴亚群.结论 MSM以多维的性伴网络相互连接,不仅在MSM人群内部具有HIV/STDs的多向传播通道,而且已经形成了向普通人群传播的桥梁.

Characteristic of sexual partner network and HIV transmission among men who have sex with men

Objective To determine the characteristic of sexual partner network among men who have sex with men(MSM)in gay bars and document HIV/STDs prevention and control.Methods A cross-sectional survey was conducted in gay bars including the demographic characteristics,HIV and STDs infection as well as the number and types of sexual partner.Results The self-reported prevalence of HIV and STDs was 3.4%and 10.3%,respectively,among MSM.Multiple sexual partners were common and there were various types of sexual partners.Of 174 participants,50.0% and 17.8% had the same-sex casual sexual partner and the same-sex commercial sexual partner in the past 2 months,respectively,63.8% currently had the same-sex primary sexual partner,55.7% had female sexual partner during their lifetime.19.5% and 12.6% had 3 and 4 types of sexual partner,respectively.The various sub-groups,which had different types of sexual partner,were correlative.The core sub-groups were sub-group who had the female and sub-group who had the same-sex commercial partner.Conclusion MSM are connected with each other by multiple sexual partner network.There are not only multiple transmission of HIV/STDs among MSM,but also the transmission bridge of HIV/STDs has been developed from MSM to general population.