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目的了解天水市男男性行为人群(MSM)对艾滋病的知识、态度和行为,分析其感染艾滋病病毒(HIV)的危险因素。方法对23名感染HIV的MSM,按照调查时间1∶4的比例进行配对,用SPSS统计软件采用Cox回归模型进行病例对照分析。结果本次共调查MSM 800例,HIV抗体确认阳性23例,匹配HIV阴性的MSM92例。单因素分析发现,两组在艾滋病知识的知晓率、近6个月与同性肛交的比例、与同性发生肛交性行为时坚持使用安全的比例、曾有同性商业性行为的比例的差异均有统计学意义(P<0.05);Cox回归分析发现,近6个月与同性发生肛交性行为者,感染HIV的比值比(OR)值为10.53;曾有同性商业性行为者感染HIV的OR值为2.95。结论近6个月与同性发生肛交性行为和曾有同性商业性行为是MSM感染HIV的危险因素。
Objective To understand the knowledge, attitudes and behavior of HIV / AIDS among MSM in Tianshui and to analyze the risk factors of HIV infection. Methods Twenty-three MSM infected with HIV were matched according to the ratio of 1: 4 in investigation time. Cox regression model was used for case-control analysis with SPSS statistical software. Results A total of 800 MSM cases were investigated. 23 cases were confirmed positive for HIV antibody and 92 cases were matched for HIV negative MSM. Univariate analysis showed that there was statistical difference between the two groups in the awareness rate of AIDS knowledge, the proportion of homosexual anal sex in the past 6 months, the proportion of safe sex used in homosexual anal sex, and the percentage of homosexual commercial sex behaviors (P <0.05). The Cox regression analysis showed that the odds ratio (OR) of HIV infection among homosexual and homosexual men in the past 6 months was 10.53 and OR respectively 2.95. Conclusions In the recent 6 months, homosexual anal intercourse and homosexual commercial sex were the risk factors of HIV infection in MSM.