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目的估计上海市闵行区吸毒人群规模,为制定吸毒人群艾滋病干预措施提供参考依据。方法采用多阶段随机抽样的方法在上海市闵行区社区人群中招募调查对象,并进行问卷调查,利用网络规模迭加法(network scale-up method,NSUM)来估计吸毒人群的规模。结果共调查合格对象3 907人,其中男性1 920人,女性1 987人;调查对象年龄为(40.54±11.69)岁。初步估计上海市闵行区居民社交网络规模均值为206人,经调整校正后为240人;进一步依据网络规模迭加法估计可得该区吸毒人群规模为3 664人。结论网络规模迭加法估计敏感人群具有一定的可信度,值得进一步推广。
Objective To estimate the scale of drug addicts in Minhang District, Shanghai, and to provide a reference for formulating HIV / AIDS intervention among drug addicts. Methods A multistage random sampling method was used to survey respondents in the community of Minhang District in Shanghai and questionnaires were conducted. The network scale-up method (NSUM) was used to estimate the size of drug addicts. Results A total of 3 907 eligible subjects were investigated, including 1 920 men and 1 987 women. The age of the subjects was (40.54 ± 11.69) years. It is estimated that the average size of residents in Minhang District in Shanghai is 206, which is 240 after adjustment and correction. According to the superposition method of network size, it is estimated that there are 3,664 drug users in this area. Conclusion The superposition method of network size estimated sensitive population has a certain degree of credibility, it is worth further promotion.