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目的应用乘数法对男男性行为者(MSM)人群规模进行估计;了解银川市MSM人群艾滋病知识及其相关危险行为和艾滋病病毒(HIV)、丙型肝炎(HCV)和梅毒的感染状况,为制定银川市MSM人群的性病艾滋病预防控制策略提供科学依据。方法采用同伴推动滚雪球方法招募银川市MSM人群经常活动的酒吧、浴池及网络的男男性行为者,采用统一问卷调查方式调查MSM 229名,获得有效问卷216份。采集静脉血检测HIV、HCV和梅毒血清学抗体。结果银川市MSM人群规模估计3500人;平均年龄26岁,大专以上文化程度占41.2%;艾滋病知识总知晓率为89.8%;与同性肛交性行为最近6个月安全套坚持使用率58.8%,酒吧、网络招募的MSM安全套使用率高于浴池招募的MSM,浴池招募的MSM最近6个月安全套坚持使用率仅为33.3%;静脉血检测未检出HCV(+),梅毒检出率5.1%,HIV(+)检出率3.2%。结论银川市MSM人群安全套坚持使用率低,在浴池活动的MSM感染HIV、梅毒的风险增大。应加强浴池活动的MSM高危行为干预,预防控制艾滋病在MSM人群中的传播和流行。
Objective To estimate the population size of MSM by multiplier method. To understand the HIV / AIDS knowledge and related risk behaviors of MSM population and the prevalence of HIV, HCV and syphilis in Yinchuan City, Provide a scientific basis for developing STD and AIDS prevention and control strategies in MSM population in Yinchuan. Methods Amateur male snowball method was used to recruit men, men and women in bar, bath and internet, which are often active in MSM population in Yinchuan City. 229 MSM were surveyed by unified questionnaire, and 216 valid questionnaires were obtained. Venous blood was collected for the detection of HIV, HCV and syphilis serological antibodies. Results The population of MSM in Yinchuan was estimated to be 3,500. The average age was 26 years old, with a college education of 41.2%. The total awareness of HIV / AIDS was 89.8%. Consistent use of condoms with homosexual anal sex in the past 6 months was 58.8% The utilization rate of MSM condoms recruited by the network was higher than that of the bath-recruited MSM. The number of MSM recruited in the bath stayed 33.3% for the last 6 months; HCV (+) was not detected in the venous blood test, and the detection rate of syphilis was 5.1% (+) Detection rate of 3.2%. Conclusions Yinchuan City MSM condom use rate is low, MSM activities in the bath infected with HIV, syphilis increased risk. MSM risk behaviors in bath activities should be strengthened to prevent and control the spread and prevalence of AIDS in MSM population.