凉山州农村未婚青少年中偶遇性行为对HIV感染的作用

A study on the role of casual sex in HIV infection among unmarried adolescents from rural areas in Liangshan Prefecture

目的探讨偶遇性行为对农村未婚青少年人群感染艾滋病病毒(HIV)的作用。方法对凉山州农村未婚青少年人群艾滋病综合监测数据,采用SPSS 18.0统计软件包做单因素和多因素统计分析。结果共监测农村未婚青少年1 872人。595人(31.8%)发生过性行为,其中296人(49.7%)发生过偶遇性行为。最近1年发生性行为时安全套坚持使用率为3.6%,从未使用安全套者占70.1%。回答有吸毒史的1 855人(99.1%)中,56人承认注射吸毒,47人承认曾与别人共用针具,共用针具率高达83.9%。最近1年,有680人(36.3%)曾做过HIV检测,而此次监测的血清学检测共发现HIV抗体阳性者89人,阳性率为4.8%(89/1 872)。偶遇性行为、注射吸毒行为的多因素影响下各个危险因素的人群归因危险度(PARc%)分别为25.5%、27.9%,两者共同作用的多因素条件下的综合人群归因危险度(sPAR%)为44.6%。结论农村未婚青少年人群HIV感染形势严峻,偶遇性行为是影响该人群HIV感染与否的重要因素。

Objective To explore the role of casual sexual behavior in HIV infection among unmarried adolescents and young people from rural areas in Liangshan. Methods The surveillance data of the unmarried adolescents and young people were handled with SPSS 18.0. Results Totally 1 872 subjects were surveyed, and 595 had sex behav- ior, of whom 296 had casual sex behavior. The rate of consistent condom use during sex in the recent year was 3.6% ,and that of never use was 70.1% ; 1 855 admitted having drug use history, of whom 47 admitted sharing syr- inges with others, and the rate of syringe sharing among injecting drug user was as high as 83.9%. Totally 680 subjects had HIV test in the recent year, and of them 89 were tested HIV antibody positive, with a positive rate of 4. 8%（89/1 872）. The positive rate of HIV antibody test among the local rural unmarried adolescents and young people was 4.8%. Those who had casual sexual behaviors were more susceptible to HIV. The PARc% of the casual sexual behavior and injecting drug use behavior were 25.5% and 27.9%, respectively, and the combined sPAR% was 44. 6 %. Conclusion The situation of HIV infection among unmarried adolescents and young people from rural areas in Liangshan is very serious, and casual sexual behavior is an important factor for HIV infection among this population.