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作 者:查干花[1] 苗志峰[2] 王丽艳[3] 王璐[3] 赵金扣[4]
机构地区:[1]宁夏疾病预防控制中心,宁夏银川750004 [2]银川市疾病预防控制中心 [3]中国疾病预防控制中心性病艾滋病预防控制中心 [4]江苏省疾病预防控制中心
出 处:《华南预防医学》2009年第6期20-22,共3页South China Journal of Preventive Medicine
基 金:美国GAP项目;宁夏自然科学基金项目(NX08154)
摘 要:目的探索用同伴推动抽样法(respondent—drivensampling,RDS)结合乘数法进行男男性接触者(menwhohavesexwithmen,MSM)基数估计的可行性,为当地疫情估计及制定针对MSM的艾滋病防治策略提供科学依据。方法2006年采用RDS招募在宁夏某城市连续居住3个月以上的MSM,并进行面对面的问卷调查,获得其特定时间点击目标网站人数的比例(1/m),通过RDS分析软件进行权重处理;结合目标网站特定时间的点击数和网络调查获得网络基数(r);采用乘数法(N=r×m)估计当地MSM的规模。结果2006年6~8月共招募90名MSM参加调查。被调查的MsM访问目标网站比例为49.O%(90%CI:35.9%~66.0%),访问目标网站的目标人群基数为1653人,估计该城市MSM为3372(90%CI:2513~4612)人,占该市15~49岁男性人口的1.20%(90%CI:0.9%~1.64%)。结论RDS结合乘数法对MSM进行基数估计是可行的,应进一步研究如何提高MSM的应答率。Objective To estimate the population size of men who have sex with men (MSM) in a western city of China to provide scientific data for planning of targeted prevention among MSM in the city. Methods In 2006, Respondent - driven sampling (RDS) was applied to recruit MSM in the targeted city. A structured questionnaire guided face to face interview was applied to obtain the proportion of MSM (1/m) who had visited the websites during the given period. The number of MSM(r) who visited website during a given period was investigated by a web - based questionnaire. Therefore, population size can be estimated by r muhiplied by m. Results A total of 90 MSM were recruited within 3 months. The estimated number of MSM in the western city of China were 3 372(90% CI:2 513 -4 612), which accounted for 1.20% (90% CI:0. 9% - 1.64% ) of the adult males aged 15 - 49 years. Conclusion RDS with multiplier is an effective way to estimate the number of MSM.
分 类 号:R163[医药卫生—公共卫生与预防医学]
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