Sentinel surveillance for prevalence of AIDS related risk behaviors in drug users in Honghe, Yunnan,2010-2014

Objective To understand the prevalence of AIDS related risk behaviors in drug users in Honghe prefecture in Yunnan province from 2010 to 2014 and provide evidence for the development of AIDS prevention and control measures. Methods Accoording to The AIDS surveillance protocol in Yunnan province, a sentinel surveillance was condcuted among the drug users in Yunan, and questionnaires were used collect the information about their demographic data, awareness of AIDS related knowledge and HIV infection related behavior. The data were analyzed with software SPSS 22.0. Results Most drug users were aged 20-40 years, but the number of drug users aged 20 years was in increase, and the number of drug users aged 40 years was in decline. Most drug users were ethnic Han, but the proportion of ethnic Hani drug users increased from 4.4% in 2010 to 29.6% in 2014. Heroin was prefered by most drug users, but the heroin use rate declined from 99.2% in 2010 to 80.8% in 2014. The smokable mathamphetamine use rate increased from 0% in 2010 to 10.6% in 2014. The rates of injection drug use and needle sharing showed a decline trend one month after entering drug rehabilitation center. The proportion of the drug users who had commercial sex druing the past year ranged from 6.8% to 26.6%. Logistic regression analysis indicated that age above 30 years, injection drug use, needle sharing, being female, unprotected commercial sex and low intervention coverage were the risk factors for HIV infection. Conclusion The HIV infection rate was in decline in drug users in Honghe, but unprotected commercial sex was common in the drug users and the intervention coverage was in decline. Except expanding methadone maintenance treatment coverage and increasing needle exchange sites, it is necessary to conduct risk behavior intervention among drug users through outreach service, health education and peer advice to prevent the sexual transmission of HIV to general population.