Study on the characteristics of serology and sexual behavior among drug users at the HIV sentinel surveillance sites in 2012 / 中华流行病学杂志

ABSTRACT

Objective To analyze the serological results and sexual behavior among different types of drug users (DUS) at the HIV sentinel surveillance sites.Methods Sentinel surveillance programs were conducted between April and June annually.DUS were those involved in custodies,living at the communities and those attending the methadone maintenance treatment clinics but with positive urine tests one month before blood sampling collected and questionnaire survey started.Results 116 279 drug abusers were included in the analysis.The prevalence rates of HIV,Syphilis and HCV among traditional drug(heroin,etc.)users were 5.0％,4.4％ and 49.4％,while the prevalence rates of new narcotic (meth,etc.) users were 0.5％,4.6％,15.2％,respectively.The prevalence rates of HIV,syphilis among traditional drug uses were higher than the new narcotic users (P＜0.01).The proportion of sexual behavior in last month and the proportion of sexual behavior with casual and commercial sexual partners were 46.3％,87.2％ and 28.1％ among the new narcotic users,respectively,which were higher than those among traditional drug users (40.7％,82.8％ and 22.2％).The proportion of using condom in last sexual contact with casual sexual partner was 33.3％ among the new narcotic users which was less than traditional drug users (36.2％).The proportion of condom use in the last commercial sexual contact was 65.l％ which was higher than those traditional drug users (62.9％).The proportion of never using condom with casual and commercial sexual partners in the past year was 43.2％ and 19.0％ among the traditional drug users,which were higher than those among new narcotic users (41.3％,15.3％).Conclusion Compared with the traditional drug abusers,the sexual behavior of new narcotic users seemed more active,less engaging in condom use but with higher risk of HIV transmission through sexual contact.