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目的了解绵阳市北川羌族自治县男男性行为者(MSM)人群艾滋病病毒(HIV)感染现状及相关行为特征。方法于2011年5-10月,在北当地固定茶楼采用滚雪球抽样方法,在知情同意下进行调查对象招募和自填式匿名行为学和血清学调查。结果共调查98人,HIV感染率2.0%,艾滋病知识知晓率96.4%。调查对象近6月80.6%发生过肛交,近1周肛交次数平均(2.0±3.0)次,其中2~3次23.5%,≥4次11.2%;不同年龄、寻找性伴场所、认识当地MSM朋友数其近1周肛交次数差异有统计学意义(P均<0.05),年龄较小、酒吧/公园/朋友介绍寻找性伴,认识朋友较多者肛交次数较多。男性肛交、男性商业性行为、异性性行为近6月每次使用安全套分别为44.3%、0.0%、14.3%,近1次使用安全套分别为81.6%、75.0%、57.1%,差异有统计学意义(P均<0.05)。近1年83.7%接受过安全套宣传和发放/艾滋病咨询或检测,79.6%接受同伴教育,全部做过HIV检测。结论该县MSM人群艾滋病知识知晓率高,但高危行为较普遍,知识与行为分离明显,防治形势不容乐观,应加大干预力度。
Objective To understand the status and related behavioral characteristics of HIV in MSM population in Beichuan Qiang Autonomous County, Mianyang City. METHODS: From May to October 2011, snowball sampling was used in the fixed teahouses in the north of the country. Subjects were recruited and self-administered anonymous behavioral and serological surveys with informed consent. Results A total of 98 people surveyed, HIV infection rate of 2.0%, awareness of AIDS knowledge rate of 96.4%. In the survey, nearly 80.6% of the patients had anal intercourse in recent June, and the average number of anal intercourse in the recent 1 week was 2.0 ± 3.0, of which 23.5% were 2-3 times and 11.2% were ≥4 times. At different ages, they sought out partner places and met MSM friends The number of anal intercourse in the last 1 week was significantly different (all P <0.05), younger, bar / park / friend looking for partners, more friends and more anal intercourse. Male condom use, commercial sex behavior and heterosexual behavior were 44.3%, 0.0% and 14.3% respectively in June and 81.6%, 75.0% and 57.1% in the first condom respectively. The difference was statistically significant (P <0.05). In the past year, 83.7% received condom promotion and HIV / AIDS counseling or testing, 79.6% received peer education, and all had HIV testing. Conclusion The awareness rate of HIV / AIDS among MSM population in this county is high, but high-risk behavior is common, knowledge and behavior are obviously separated, and the prevention and control situation is not optimistic. Intervention should be intensified.