【摘要】 目的通过对不同性取向的男男性接触者(MSM)行为特征进行分析,探索该人群在艾滋病病毒(HIV)传播中的桥梁作用。方法采用符合设计要求的问卷表,对选取的符合要求的MSM进行面对面的问卷调查。结果调查对象的性取向以同性恋者(Gay)和双性恋者(Bi)为主,分别为78.9%和16.7%。其中Gay和Bi过去6个月与女性发生性行为的比例分别为14.1%和66.0%;从未使用安全套比例分别为82.4%和70.1%。过去6个月与男性发生肛交行为中,Gay的接受性肛交行为高于Bi(χ2=18.46,P<0.001),插入性肛交行为低于Bi(χ2=18.38,P<0.001)。安全套坚持使用率为25%～40%,安全套的使用率差别无显著性。16.4%的Gay和21.3%的Bi有商业性行为。59.7%的MSM通过网络寻找性伴,1.7%的MSM有吸毒行为,13.1%的MSM检测过HIV。结论Gay和Bi中拥有很高比例的女性性伴,同时存在传播HIV的高危行为,他们可能在HIV从高危人群向一般人群传播中起桥梁作用。更多还原

【Abstract】 Objective To study behavioral features of men who have sex with men(MSM) with different sexual orientations and explore their bridging role in HIV transmission.Methods A face to face questionnaire investigation was conducted among MSM from June to July,2006.Results The proportions of Gay and Bi among MSM were 78.9% and 16.7%,respectively;the respective proportions of having sex with females among Gay and Bi were 14.1% and 66.0% in the past 6 months,and the proportions of never using condom were 82.4% and 70.1%,respectively.The rate of receptive anal intercourse was higher among Gay(χ2=18.46,P<0.001),while the rate of inserting anal intercourse was higher among Bi(χ2=18.38,P<0.001).But the rate of consistent condom use was from 25% to 40%;16.4% of Gay and 21.3% of Bi had commercial sexual behaviors;59.7% of MSM looked for sexual partners through internet,1.7% of MSM reported having experience of drug use and 13.1% of them reported having received HIV antibody test.Conclusion The proportions of having female partners are very high among Gay and Bi,and high risk behaviors are common among them.As a consequence,MSM including both Gay and Bi may serve as a bridge to transmit HIV from the high risk population to the general populations.更多还原