常州市男男性行为人群多性伴影响因素及HIV和梅毒感染情况调查

Study of Influencing Factors Associated with Multi-sexual Partners and Infection of HIV and Syphilis among Men Who Have Sex with Men in Changzhou

目的了解常州市男男性行为(MSM)人群中性伴数量的影响因素和性病艾滋病的流行特征。方法采用滚雪球抽样法调查,通过调查问卷收集人口学和行为学信息,并采血进行梅毒和HIV血清学检测。结果共收集350份问卷和血样。近6个月内单性伴和多性伴比分别为52.6%和47.4%。单性伴组和多性伴组的年龄、文化程度、婚姻、居住状况、寻性伴场所、近6个月内与男性肛交行为方面的差异有统计学意义(P<0.05)。与配偶居住和接受过健康服务是多性伴的影响因素。HIV和梅毒的感染率分别是9.1%和10.3%,多性伴组和单性伴组的梅毒和HIV感染率差异无统计学意义(P>0.05)。结论常州MSM多性伴现象较普遍,存在潜在传播HIV和梅毒的风险,应制定有效的艾滋病干预策略,减少MSM性伴数量。

Objective To understand the influencing factors associated with the number of sex partners and the prevalence of venereal diseases and AIDS among men who have sex with men （MSM）. Methods Through snowball sampling methods, structured questionnaire-based interviews were conducted to provide information about demographic characteristics and behaviors. Blood samples were drawn for HIV and syphilis testes. Results A total of 350 questionnaires and blood samples were collected. 52.6% of responders had single sexual partner and 47.4% had multi-sexual partners during the past 6 months. There were significantly differences on age groups, education levels, marital status, living status, places and having anal intercourse with men during the past 6 months between multi-sexual partners group and single sexual partners group （P 〈 0.05 ）. Living with spouse and once received health services were influencing factors of multi-sexual partners. The infection rates of HIV and syphilis were 9.1% and 10.3% , respectively. There were no significant differences on syphilis infection rate and HIV infection rate between multi-sexual partners group and single sexual partner group（ P 〉 O. 05 ）. Conclusion Having multi-sexual partners is common among MSM in Changzhou, which is a potential risk to spread HIV and syphilis. Effective intervention strategy should be formulated to reduce the number of sexual partners among MSM who have multi-sexual partners.