204例MSM人群HIV／梅毒感染状况及行为学特征分析

目的了解天津市部分男男同性性行为人群（MSM）艾滋病相关危险行为，以及艾滋病病毒（HIV）、梅毒（SP）感染状况，为预防性病、艾滋病传播提供依据。方法采用横断面调查，对进入酒吧的男同性恋者进行问卷调查，同时抽取血样进行梅毒和HIV的实验室检测。结果调查的204人中，HIV感染率为5．9％，梅毒感染率为18．7％。艾滋病知识知晓率为81．4％，近6个月每次性行为均使用安全套的比例为47．9％，HIv感染者安全套使用率低，仅为11．1％，71．4％的HIV感染者最近6个月存在多性伴现象。结论天津市MSM人群危险性行为普遍存在，安全套使用率低，HIV、梅毒感染率较高，应加强对该人群艾滋病性病相关的宣传教育及干预工作，控制HIv的传播。

Study on HIV/syphilis infections among men who have sex with men and their behavioral feature

Objective To investigate high risk behaviors related to HIV/AIDS among men who have sex with men （MSM）in Tianjin and the rate of HIV/syphilis infections among them so as to provide evidence for prevention of HIV/ STD. Methods A cross-sectional survey was conducted among 204 MSM in bars with face to face interviews and blood smaples were taken to test HIV/syphilis. Results Of the 204 MSM the rate of knowledge about HIV was 81.4 % ,and 47.9 % of the participants reported consistent condom use with their male sex partners in the last six months,while only 11.1% of the HIV infected MSM used condom and 71.4 % of them had more than two male sex partners in the last six months;5.9 % of partners were infected with HIV,and 18.7 % were infected with syphilis. Conclusion The infection of HIV/syphilis is severe and high risk sexual behaviros were ubiquitous among MSM in Tianjin, and to control local HIV transmission prevention of HIV/STD among MSM should be strengthened.