Sentinel surveillance among female sex workers in Wuwei City Gansu Province from 2011 to 2013

Objective To investigate the awareness of HIV/AIDS related knowledge, high-risk sexual behaviors and influencing factors among female sex workers (FSWs) in Wuwei city and to provide evidence for making intensive intervention policy for FSWs. Methods According to the national acquired immune deficiency syndrome (AIDS) sentinel surveillance protocol, questionnaire survey and serological detection were conducted among FSWs in Wuwei city from 2011 to 2013. Results Total 1 200 FSWs were included in the analysis and the awareness of HIV/AIDS related knowledge among FSWs was 89.8% (1 077/1 200). The awareness of HIV/AIDS related knowledge among FSWs from 2011 to 2013 were 97.0% (388/400),90.8% (363/400),81.5% (326/400) respectively (χ²=52.88,P<0.001). The rate of consistent condom use during the last month among FSWs in 2011-2013 were 93.0% (372/400), 83.0% (332/400) and 75.0% (300/400), respectively (χ²=47.61,P<0.001). No HIV positive cases were detected among FSWs. The positive rates of syphilis and anti-HCV were 2.9%(35/1 200) and 2.3%(27/1 200). Multivariate Logistic regression analysis showed that the awareness of HIV/AIDS related knowledge, education level, grade of sex trade sites, age and diagnosis of sexual transmission disease during last 12 months were associated with persist condom use in the last month among FSWs. Conclusion Compared to 2011, the rates of HIV/AIDS related knowledge awareness and consistent condom use in the last month among FSWs were decreased in 2013. More enhanced propaganda interventions should focus on FSWs in low and middle class sex trade sites in Wuwei city.