2012年四川省艾滋病高危人群哨点监测结果分析

目的了解四川省艾滋病病毒（HIV）感染高危人群中，艾滋病的流行现状及其相关行为特征，为四川省艾滋病防治策略的制定与干预工作的开展提供科学依据。方法采用连续抽样法调查，对暗娼（FSW）、吸毒人群（DUS）、男男性行为人群（MSM）、性病门诊男性就诊者（Male STD）进行问卷调查和血清学检测。结果2012年4类高危人群共监测40091人，FSW、DUS、MSM、Male STD的HIV阳性检出率分别为0．4％、5．4％、11．1％、0．7％。2009—2012年，DUSHIV阳性检出率呈逐年下降趋势（Х^2=43．26，P〈0．001），但总体仍在相对较高水平；其余高危人群未见下降趋势，MSM仍维持在较高水平（9．7％～11．5％），FSW（0．3％～0．6％）、Male STD（0．6％～0．7％）则在较低水平波动。FSW最近1个月商业性行为时坚持使用安全套比例为71．6％，DUS最近1个月共用针具比例为23．6％，MSM最近6个月同性肛交时坚持使用安全套的比例为37．4％。结论MSM与DUS人群的HIV阳性检出率处于较高水平，各人群的HIV感染危险因素广泛存在，四川省艾滋病疫情流行态势依然严峻，预防干预工作不容忽视。

An analysis of HIV/AIDS sentinel surveillance for high risk populations in Sichuan Province in, 2012

Objective To understand epidemic situation of HIV/AIDS and behavioral characteristics among high risk populations, and to provide scientific information for AIDS prevention and control. Methods Cross-sectional sentinel surveys were conducted sequentially with questionnaire survey and serological surveillance among female sex workers （FSW）, drug users （DUS）, men who have sex with men （MSM） and male STD clinic attendes （Male STD）. Results A total of 40091 subjects were surveyed among these four groups of high risk populations in 2012. The HIV positive rates among FSW, DUS, MSM , Male STD population were 0.4%, 5.4%, 11.1% and 0.7%, respectively. From 2009 to 2012, the HIV positive rate was declining in DUS population（Х^2 =43.26,P〈0. 001）, hut it was still maintained at a high level. The declining trend was not observed in other high-risk populations. HIV positive rate remained at a high level in MSM （9.7 to 11.5%）, but kept at a lower level in FSW （0.3 to 0.6%） and Male STD （0.6 to 0.7%）. The proportion of consistent condom use in commercial sex during the last month in FSW was 71.6%. The proportion of needle sharing during the last month in DUS was 23.6%. The proportion of consistent condom use in anal sex during the last six months in MSM was 37.4%. Conclusion HIV positive rate a- mong MSM and DUS populations was maintained at a high level, and many risk factors of HIV infection have been involved in high risk populations. So the situation of AIDS epidemic is still grim. More comprehensive measures are urgently needed to prevent and control further transmission of HIV in Sichuan province.