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目的估计某地区男男性接触者(MSM)规模,为该地区艾滋病防治工作提供基础信息。方法研究采用乘数法,通过网站问卷调查和在MSM活动场所内、场所外对MSM的调查获得相关参数。结果2004年8~10月,访问该网站的MSM中,经常到各类活动场所的人数为2 905人,不经常去各类MSM活动场所的人数为18 775人。2004年8~10月,在MSM活动场所内,MSM访问该网站的比例为26.2%;在活动场所外MSM访问该网站的比例为39.4%。该地区MSM人数为(2 905÷0.262)+(18 775÷0.394)=58 740人。结论采用乘数法估计MSM的规模是可行的。
Objective To estimate the size of men who have sex with men (MSM) in a region and provide basic information for AIDS prevention work in the area. METHODS: Multivariate methods were used to obtain relevant parameters through site surveys and surveys of MSM within and outside MSM activity sites. Results From August to October 2004, the MSM who visited the site frequently had 2905 people in various activity venues, and 18,775 people did not regularly go to various MSM event venues. From August to October 2004, MSM visited 26.2% of the sites in MSM’s event venues and 39.4% of them visited the site outside of the event venues. The number of MSMs in the area was (2,905 ÷ 0.262)+ (18,775 ÷ 0.394) = 58,740 people. Conclusion It is feasible to use the multiplier method to estimate the size of MSM.