蒙自市女性性工作者HIV感染及其危险因素调查

目的 了解云南省蒙自市女性性工作者(FSWs)艾滋病病毒（HIV）的感染情况及HIV感染相关危险因素,为制定艾滋病防控策略和行为干预提供依据。方法 于2010年10–11月采用方便抽样的方法,招募云南省红河州蒙自市娱乐场所FSWs,调查其社会人口统计学、行为学、HIV/AIDS知识以及生殖健康状况,并采集静脉血进行HIV血清学检测,分析FSWs人群HIV感染率及其危险因素。结果 本次共调查423名FSW,HIV抗体阳性19人,HIV抗体阳性率为4.5%。最近一个月与客人发生性行为时坚持使用安全套的比例为87.0%。多因素分析显示,与HIV感染相关的危险因素为在低档性服务场所服务（校正OR=10.0,95%CI：3.77-26.67, P<0.001）和从事性服务时间≥2年（校正OR=3.8,95%CI：1.39-10.20, P=0.01）。结论 蒙自市FSWs有较高的HIV感染率,在低档性服务场所服务及从事性服务时间长是HIV感染的危险因素,需针对低档和中高档FSWs的危险行为特征分别实施不同的干预措施, 控制HIV的传播流行。

Prevalence and risk factors associated with HIV infection among Female Sex Workers in Mengzi county of Yunnan province

Objective : To explore the prevalence and risk factors of HIV infection among female sex workers (FSWs) in Mengzi city, Yunnan province, to provide effective advice to formulate HIV control and prevention intervention. Methods : From October to November 2010, convenience sampling method was used to recruit FSWs in entertainment venues in Mengzi city to investigate their demographic information, sexual behavior, HIV/AIDS knowledge and procreation health status. Venous blood was collected to test for HIV. The prevalence and risk factors of HIV infection were analyzed. Results : Totally 423 FSWs were recruited, among them 19 were confirmed to be HIV antibody positive which resulting the prevalence of HIV is 4.5%. The proportion of consistent condom use with clients in past month was 87%. In multivariate logistic analysis, the factors associated with HIV were working in low level sex work venues (adjusted OR=10.0, 95%CI: 3.77-26.67, P< 0.001) and time engaged in sexual work≥ 2 years (adjusted OR=3.8, 95%CI: 1.39-10.20, P=0.01). Conclusion: The prevalence of HIV was comparative high among local FSWs. FSWs who worked in low-grade sex work venues and had longtime engaged in sexual work were at higher risk of HIV infection. Different intervention measurements should urgently be carried out according to the level of sex work venues that FSWs work.