【摘要】 目的了解西安市男男性行为人群(MSM)中艾滋病病毒(HIV)感染的流行病学特征和梅毒感染情况。方法采集2010-2012年西安市疾病预防控制中心确证的、经男男同性传播的HIV阳性者的外周静脉血5mL,进行梅毒实验室检测;同时完成流行病学问卷调查,行为学调查重点包括性行为特征、吸毒史、献血史等。结果调查HIV抗体阳性的男男性行为者240例,年龄集中在20~40岁(占71.2%),未婚居多(占60.4%),文化程度较高(高中/中专以上学历占79.2%),职业分布多样,艾滋病(AIDS)相关知识知晓率为96.7%。行为学特征比较复杂:61.3%有双性性行为,累计平均性伴数5人,每次性行为坚持使用安全套比例仅为20.4%。已婚调查对象中,有22.8%(13/57)在感染后与配偶间性行为不使用安全套。所有对象均否认有吸毒史,10%有使用兴奋剂/催欲药史;25%有献血史;38.8%在感染前定期进行HIV抗体检测。性取向或情感倾向显示:57.9%为同性,32.5%为双性,4.2%异性,5.4%表示不确定。梅毒阳性率为17.5%。结论西安市HIV抗体阳性的MSM普遍存在"知-行"分离现象,具有双性性行为、多性伴、安全套使用率低及梅毒感染率高等特点。今后应继续加强艾滋病宣传教育和行为干预,及早发现并规范治疗梅毒,遏制该人群中艾滋病的流行。更多还原

【Abstract】 Objective To investigate the epidemiology characteristics of HIV infection and status of syphilis infection among men who have sex with men(MSM)in Xi’an.Methods Five ml blood samples were collected for syphilis test from HIV infected MSM reported during 2010-2012 in CDCD of Xi’an.Epidemiological survey was completed in the meanwhile,including sexual behavior characteristics,history of drugs,blood donation,etc.Results There were 240 HIV-positive MSM investigated in this study.They were mainly at the age of 20-40years(accounting for 71.2%).Most of them were unmarried(60.4%),well educated(79.2% with degrees of senior/vocational middle school and above),and occupation distribution was varied.The awareness rate of AIDS was96.7%.Behavioral characteristics were complex:61.3% of investigated individuals had bisexual behaviors,mean of cumulative sex partners was 5,and the rate of persistent condom use was 20.4%.Among married participants,22.8%(13/57)did not use condom in sexual intercourse with their spouses after infection.All subjects denied the history of drug use,but 10% of them had history of analeptic/aphrodisiac use.Twenty-five percent had a history of blood donation and 38.8% regularly tested HIV antibody before infection.Sexual or emotional orientations showed that 57.9% of the subjects were homosexual,32.5% were bisexual,4.2% were heterosexual,and 5.4% were uncertain.The positive rate of syphilis in HIV positive MSM was 17.5%(42cases).Conclusion A contradiction between knowledge and behavior is prevalent in HIV-infected MSM in Xi’an.This population has characteristics of bisexual behavior,multiple sexual partners,low rate of condom use and high rate of syphilis infection,etc.The prevention and control strategies should be strengthened and improved hereafter to suppress the prevalence of AIDS in this population,such as strengthening the publicity,education and behavior intervention,diagnosing and treating syphilis according to the standard therapeutic methods as early as possible.更多还原