中文摘要：

目的分析重庆市2006-2012年艾滋病高危人群HIV/AIDS流行情况,为艾滋病高危人群的干预提供科学依据。方法从重庆市传染病上报系统和艾滋病监测哨点收集时间序列数据,评价指标为HIV新发病例数、HIV感染率和安全套使用率,利用泊松分布估计总体率的95%可信区间,采用时间序列相关性分析方法进行时间序列趋势性检验。结果 2006-2012年艾滋病感染的主要途径为异性性途径、同性性途径和静脉注射吸毒。暗娼（female sex worker,FSW）、静脉注射吸毒者（injecting drug use,IDU）、男男性行为人群（men who have sex with men,MSM）和性病门诊患者（people with sexually transmitted diseases,STDs）的HIV年平均感染率分别为0.18%（95%CI：0.10%～0.25%）、8.42%（95%CI：7.82%～9.03%）、15.62%（95%CI：14.41%～16.86%）和1.58%（95%CI：1.25%～1.91%）。FSW和MSM平均安全套使用比例分别为74.01%（95%CI：73.21%～74.82%）和62.30%（95%CI：60.67%～63.92%）。结论重庆市必须加强针对男男性行为人群、暗娼和性病门诊患者的干预工作,并在男男性行为人群和暗娼人群中加强安全套使用重要性的宣传力度。

英文摘要：

Objective To analyze the prevalence of HIV/AIDS in the high-risk population in Chongqing during the years of 2006 to 2012 so as to provide scientific basis for the intervention strategies of high-risk peoples. Methods The time series data were collected from infectious disease system and HIV monitoring sentinel. The estimation indicators were new HIV infections, HIV infection rate and condom usage rates. The overall rate and its 95% confidence interval （95% CI） were estimated based on Poisson distribution principle. The time serial correlation analysis was employed for time serial trend test. Results From 2006 to 2012, the main HIV infection routes were intravenous drug use, and heterosexual and homosexual transmission routes. The annual average HIV infection rates of the female sex workers （FSWs）, injecting drug users （IDUs）, men who have sex with men （MSM） and the people with sexually transmitted diseases （STDs） were 0.18% （95%CI： 0.10%-0.25%）, 8.42% （95%CI： 7.82%-9.03%）, 15.62% （95%CI： 14.41%-16. 86% ）, and 1.58% （95% CI： 1.25% - 1.91% ）. The condom usage rates were 74.01% （95% CI： 73.21% - 74. 82%） and 62. 30% （95% CI： 60. 67% - 63. 92%） respectively for FSWs and MSM. Conclusion Chongqing should strengthen the intervention among FSWs, MSM, and STDs, and enhance the publicity of the importance of condom usage in MSM and FSWs.