绵阳市县两级MSM人口学及AIDS相关行为特征和疫情现状

Characteristics of MSM's demography & AIDS-related behavior and epidemic status quo of AIDS in city &counties of Miangyang

目的了解绵阳市、县两级男男性行为人群(MSM)的人口学特征、艾滋病知识、相关行为及疫情现状。方法以绵阳市辖区内MSM为对象,应用滚雪球抽样法,在固定场所,知情同意下招募调查对象,进行自填式匿名行为学调查和生物学检测。结果调查MSM 833人,其中市级267人,县级566人。县级MSM年龄较小,文化程度低,未婚比例较高,与市级MSM比较存在统计学差异(均P<0.05)。艾滋病知识知晓率市级为99.6%(266/267),高于县级的97.0%(549/566)(P<0.05)。市、县级MSM寻找性伴场所分别为:酒吧型8.2%(13/159)、28.5%(121/424),浴室型1.9%(3/159)、20.5%(87/424),公园型19.5%(31/159)、3.1%(13/424),网络型64.2%(102/159)、36.3%(154/424),家庭型6.3%(10/159)、11.6%(49/424)(P<0.05)。市、县级MSM分别有66.9%(99/148)、52.2%(224/429)在当地寻找性伴,24.3%(36/148)、33.8%(145/429)在郊县及绵阳城区,8.8%(13/148)、14.0%(60/429)在成都及其他地区(P<0.05)。市级MSM中,有91.0%(243/267)的人近6个月有男性肛交,高于县级的83.0%(470/566);近1周肛交次数≥2的,县级为35.1%(162/462),高于市级的26.5%(61/230)(P<0.05),不同性伴性行为保护性差异无统计学意义(P>0.05)。市、县级MSM艾滋病病毒(HIV)感染率分别为4.5%(12/267)、2.2%(12/534),梅毒感染率分别为7.1%(19/267)、2.6%(7/267)。结论市、县级MSM具有不同的人口学特征和HIV/梅毒流行现状及流行因素,应有针对性地开展防治工作。

Objective To understand the characteristics of MSM＇s demography and the situation of the popularity of AIDS-related knowledge behavior and the epidemic status quo of AIDS in city counties of Miangyang.Methods Using the snowball sampling method,the anonymous self-administered questionnaires behavioral survey and biological detection were achieved by recruiting MSM after being informed in fixed places.Results Eight hundred and thirty three surveys are qualified,there are differences between the city the counties in characteristics of MSM＇s demography.MSM are younger and less educated with a higher percentage of unmarried in the counties（Both P〈0.05）.The popularity of AIDS-related knowledge in the city is 99.6%（266/267）,higher than that in the counties of 97.0%（549/566）（P〈0.05）.The locations where MSM search for sexual partners in city counties are：bar type 8.2%（13/159）,28.5%（121/424）,sauna type 1.9%（3/159）,20.5%（87/424）,park type 19.5%（31/159）,3.1%（13/424）,internet type 64.2%（102/159）,36.3%（154/424）,home type 6.3%（10/159）,11.6%（49/424）（P 0.05）.66.9%（99/148）,52.2%（224/429）of MSM in city counties search for sexual partner locally,24.3%（36/148）,33.8%（145/429）search for sexual partner in the city and the suburban counties while 8.8%（13/148）,14.0%（60/429）in Chengdu and other places（P〈0.05）.91.0%（243/267）of MSM in the city had anal sexual behavior in the past six months,higher than that of 83.0%（470/566）in the counties.35.1%（162/462）of MSM in the counties had anal sex more than twice per week,higher than that of 26.5%（61/230）in the city（P〈0.05）.There＇s no statistical significance in protective difference among different sexual partners.Infection rates of AIDS syphilis in city counties are 4.5%（12/267）,2.2%（12/534）,7.1%（19/267）,2.6%（7/267）.Conclusions The targeted work of prevention and treatment towards AIDS syphilis should be taken based on the different characteristics of MSM＇s demography and the epidemic status quo of AIDS syphilis in the city counties of Miangyang.