402例男男性行为者社会网络与高危行为的关系研究

Association study between high-risk behaviors of 402 MSM and characteristics of their social networks

目的探讨男男性行为者(men who have sex with men,MSM)社会网络及与高危行为的关系。方法采用偶遇抽样的方法,在安徽省芜湖市、马鞍山市和合肥市MSM聚集地开展面对面的问卷调查。结果共收回有效问卷402份,有效应答率93.1%。调查对象网络大小为5～的占49.5%,以年轻、文化程度较高的男性为主,且社会网络与性网络重叠,性取向完全公开程度低。艾滋病相关知识总知晓率为88.3%。同性性伴数为2个及以上者有220人(54.7%),近6个月存在偶然性伴者有223人(55.5%)。多因素Logistic回归结果表明,社会网络大小为3～4和≥5、是多同性性伴(≥2个)的影响因素,OR(95%CI)分别为2.513(1.342～4.705)、2.566(1.469～4.480);社会网络大小为≥5、性取向的公开程度为部分公开、与网络成员存在性关系是近6个月有无偶然性伴的影响因素。OR(95%CI)分别为1.791(1.013～3.167)、2.391(1.282～4.456)、2.765(1.633～4.684)。结论社会网络是艾滋病高危行为扩散的重要影响因素,社会网络干预可成为艾滋病防治工作的新思路。

Objective To explore the associations between high-risk behaviors reported by men who have sex with men（MSM） and characteristics of their social networks in Anhui Province. Methods A face-to-face interview was con- ducted among MSM recruited by using accidental sampling in MSM venues of Wuhu city, Maanshan City, Hefei city. Resuits 402 validated questionnaires were obtained with an effective respose rate of 93.1%. The social networks of MSM mainly consist of men of younger and higher educational levels and overlapped with sexual network, 49.5% of them had at least 5 network members, 20. 9% had full disclosure their sexual orientation. The awareness rate of AIDS related knowl- edge was 88.3%. 220（54. 7% ） male participants had at least 2 male sexual partners and 233（55.5% ） participants had casual sexual partners （nearly six months） . The multivariance Logistic regression ravealed that： the impact factors of more male sexual partners was social network size （3-4 and〉~5 ）, The 0R（95% CI）was 2. 513（ 1. 342-4. 705 ）, 2. 566（ 1. 469- 4. 480） ; And factors associated with casual sexual partners included social network size （ t〉5）, the openness of sexual ori- entation in the network, the existence of a sexual relationship with network members, the 0R（95% CI） was 1. 791 （ 1. 013- 3. 167）, 2. 391 （ 1. 282-4. 456）, 2. 765 （ 1. 633-4. 684）. Conclusions Social networks play an important role in dissemi- nation of HIV risk behaviors, and social networks intervention could be the new ideas in the work of MSM HIV/AIDS pre- vention and control.