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目的了解男男性行为人群(MSM)的高危行为特征、艾滋病病毒(HIV)感染状况及影响因素。方法采取“滚雪球”法进行横断面调查,对选定的贵阳市和遵义市MSM开展面对面问卷调查,内容包括社会人口学特征、艾滋病知识和高危行为并采集血样检测HIV抗体。结果进行χ2检验和Logistic回归分析。结果共招募MSM 1 045人,平均年龄25.6岁,以贵州省的未婚男性为主,文化程度较高。艾滋病知识知晓率为89.7%(936/1 045)。HIV感染率达18.5%(193/1 045)。近6个月与男性发生肛交的占81.2%(829/1 021),有14.0%(146/1 044)的MSM与女性发生过性行为。多因素回归分析结果提示,HIV的感染与年龄[≥41岁组,比值比(OR)=3.99]、民族(OR=1.91)、文化程度(大专以上文化组,OR=0.48)和近1年有性病相关症状(OR=1.97)等因素有关联。结论调查现场所在城市的MSM人群艾滋病(AIDS)处于高流行水平,该人群普遍存在无保护的多性伴行为,面对该人群艾滋病流行的严峻形势,急需实施具有针对性的预防服务和干预措施。
Objective To understand the characteristics of high-risk behaviors, HIV status and influential factors in MSM. Methods A cross-sectional survey was conducted using the “Snowball” method. Face-to-face questionnaires were conducted on the selected MSM of Guiyang and Zunyi, including socio-demographic characteristics, AIDS knowledge and high-risk behavior, and blood samples were collected to detect HIV antibodies. The results of χ2 test and Logistic regression analysis. Results A total of 1 045 MSMs were recruited, with an average age of 25.6 years old, mainly from unmarried men in Guizhou Province, with a high level of education. AIDS awareness was 89.7% (936/1 045). HIV infection rate was 18.5% (193/1 045). In the past 6 months, 81.2% (829/1 021) had anal intercourse with men and 14.0% (146/1 044) had sexual intercourse with women. Multivariate regression analysis showed that HIV infection was significantly associated with age (≥41 years, odds ratio = 3.99), ethnicity (OR = 1.91), education level Sexually transmitted diseases related symptoms (OR = 1.97) and other factors. Conclusion It is urgent to implement targeted preventive services and interventions in the face of the severe situation of HIV / AIDS among MSM population living in cities where there is a high prevalence of unprotected polygamous. .