北京市男男性行为者行为因素和心理状态与HIV感染关系的研究

目的 了解北京市男男性行为者(MSM)中HIV感染情况及其影响因素.方法 于2008年3-6月,在北京市招募MSM进行问卷调查,了解其社会人口学和行为学特征,并采集血样进行HIV抗体、梅毒抗体、HBsAg和HCV抗体检测.采用X~2检验和logistic回归模型对HIV感染的影响因素进行分析.结果共有550名符合纳入标准的MSM参加本次调查,HIV感染率为4.5%(25/550).多因素logistic回归分析显示,近1个月与临时男性性伴无保护性肛交(X~2=11.381,P=0.001)、近3个月同性性行为后直肠冲洗(X~2=5.326,P=0.021)、近1个月感到悲伤(X~2=8.809,P=0.003)与MSM感染HIV的关系有统计学意义.结论 在加强安全性行为预防干预的同时需采取适当的心理干预措施,以控制HIV在该人群中的传播.

Study on the relationship between behavioral factors,psychological status and HIV infection among men who have sex with men in Beijing

Objective To study the prevalence and risk factors of human immunodeficiency virus (HIV) among men who have sex with men (MSM) in Beijing. Methods A sample of 550 MSM was recruited between March and June in 2008 in Beijing. Interviewer-administered interviews were conducted to collect information on demographics and behaviors. Blood samples were collected to test for HIV,syphilis,HBsAg and HCV infections. Chi-square test and logistic regression model were used to identify risk factors associated with HIV infection. Results Of the 550 eligible MSM surveyed,HIV prevalence appeared to be 4.5% (25/550). Data from multivariate logistic regression analysis demonstrated that factors as reporting unprotected anal intercourse with causal male sexual partners in the last month (X~2=11.381,P=0.001),rectal douching after homosexual anal intercourse in the past three months (X~2=5.326,P=0.021),feeling sad in the last month (X~2=8.809,P=0.003) were significantly associated with HIV infection. Conclusion Health education on safer sex behavior and mental health care should be taken to hinder the speed of HIV transmission among MSM.