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目的了解沈阳市男男性行为人群(MSM)艾滋病病毒(HIV)感染率及其影响因素,进一步做好MSM的艾滋病防治工作。方法采用同伴推动法(RDS)招募900名MSM,由经过专业培训的调查员进行面对面的问卷调查,主要内容包括社会人口学特征、艾滋病知识知晓水平、性行为状况、接受干预服务情况和HIV/梅毒感染状况,并抽取静脉血检测HIV及梅毒,对影响HIV感染的相关因素进行χ2检验。结果调查了900名MSM,艾滋病知识知晓率达到91.3%。86.9%的调查对象最近6个月有同性肛交性行为,最近6个月与男性发生肛交性行为时每次都使用安全套的比例为57.5%。HIV感染率为9.3%,梅毒感染率为11.0%。分析显示,年龄较大、文化程度在初中及以下、最近6个月与男性发生肛交性行为时未坚持使用安全套、梅毒感染是感染HIV的危险因素。结论 MSM人群高危性行为发生率、HIV和梅毒感染率均高,可能成为当前HIV流行的重要人群和重要因素,应采取积极有效的宣传教育和行为干预活动。
Objective To understand the prevalence of HIV infection and its influencing factors in MSM of Shenyang and to further improve the HIV prevention and treatment of MSM. Methods A total of 900 MSMs were enrolled in the peer-driven (RDS) program. A questionnaire survey was conducted by professionally trained investigators. The main topics included socio-demographic characteristics, knowledge of HIV / AIDS, sexual behavior, intervention services and HIV / Syphilis infection and venous blood samples were collected for the detection of HIV and syphilis, and χ2 tests were performed on the factors affecting HIV infection. Results A total of 900 MSMs were surveyed. The awareness rate of AIDS knowledge reached 91.3%. 86.9% of respondents had homosexual anal sex in the past 6 months, and 57.5% of them used condoms each time they had anal sex with men in the recent 6 months. HIV infection rate was 9.3%, syphilis infection rate was 11.0%. Analysis shows that condoms are not consistently used when older people have a junior high school education and have had anal sex with men for the past 6 months. Syphilis infection is a risk factor for HIV infection. Conclusion The incidence of high-risk sexual behaviors, HIV and syphilis infection in MSM population are high, which may become an important population and important factor in HIV prevalence. Active and effective publicity and education and behavioral intervention should be taken.