常规和随机应答技术调查性病门诊男性就诊者高危性行为结果比较

目的 使用常规问卷和随机应答技术（RRT）调查性病门诊男性就诊者高危性行为及艾滋病病毒（HIV）感染状况，为艾滋病综合防治和科学干预提供信息和依据。方法 选择工作条件不同的2个性病门诊作为哨点（A门诊和B门诊）开展研究。采用横断面常规问卷调查方法，并采血检测性病门诊男性就诊者HIV、梅毒和丙型病毒性肝炎（HCV）抗体，同时使用RRT进行高危行为调查。结果 共调查就诊者783例，RRT调查发现过去3个月发生过商业异性性行为的比例为48.8%，发生过临时异性性行为的比例为22.2%，发生过同性性行为的比例15.3%，注射毒品的人只有0.3%。问卷调查结果均低于RRT调查结果，除临时异性性行为差异有统计学意义（U=2.392，P0.05）外，其他3项结果均差异无统计学意义。A门诊常规问卷调查同性性行为的结果高于RRT调查结果，B门诊常规问卷调查商业异性性行为和同性性行为比例均低于RRT调查结果。HIV、梅毒和HCV抗体阳性率分别为6.8%、7.5%和0.4%。结论 对性病门诊男性就诊者采用常规问卷调查可能低估了高危性行为的比例，而RRT方法调查得到的高危性行为结果可能更接近实际情况。

Comparative study of routine and randomized response technique on risk sexual behaviors in male patients in sexually transmitted disease clinics

Objective To explore HIV-related risk behaviors,the prevalence of HIV infection,syphilis and hepatitis virus C infection in male patients in sexually transmitted disease (STD) clinics with questionnaire survey and randomized responsetechnique survey,and provide information and basis for comprehensive AIDS prevention and intervention.Methods A crosssectional survey was conducted among male patients in two STD clinics with questionnaire,and randomized response technique survey was performed to investigate risk behaviors.Venous blood samples were collected for the tests of HIV,syphilis and HCV antibodies.Results A total of 783 men were involved in our study.Thc proportion of the subjects who had commercial heterosexual,temporary heterosexual and homosexual behaviors in the past three months were 48.8％,22.2％ and 15.3％ respectively.Only 0.3％ of them were injecting drugs users.The prevalence of the above 4 behaviors indicated by the questionnaire survey were lower than that by randomized response technique survey,but only the difference in prevalence of temporary heterosexual behavior was significant (U =2.392,P ＜ 0.05).In clinic A,the prevalence of homosexual behavior by questionnaire survey was higher than that by randomized response technique survey.In clinic B,the prevalence of commercial heterosexual and homosexual behavior by questionnaire survey was lower than that by randomized response technique survey.The positive rate of HIV,syphilis and HCV antibodies were 6.8％,7.5％ and 0.4％ respectively.Conclusion The results of the randomized response technique survey might closely reflect the real situation of risk sexual behaviors among male STD clinic patients,the prevalence of risk sexual behaviors might be less estimated by questionnaire survey.