2008-2012年宁波市MSM人群艾滋病知识知晓情况、性行为特征和HIV/梅毒感染状况调查

Investigation on HIV / AIDS knowledge,sexual behaviors and the prevalence of HIV / syphilis among men who have sex with men in Ningbo,2008- 2012

目的了解宁波市男男性接触人群（men who have sex with men,MSM）艾滋病知识知晓情况、性行为特征和艾滋病病毒（human immunodeficiency virus,HIV）及梅毒感染率的变化趋势,为在该人群中开展更加有效的防制措施提供建议。方法对2008-2012年宁波市MSM人群监测资料进行分析。结果 5年分别调查了384、136、404、435和414名MSM,艾滋病相关知识知晓率呈逐年上升趋势。同性性行为各年度最近一次安全套使用率波动于64.6%～75.1%,近半年安全套坚持使用率波动于35.4%～43.4%。异性性行为各年度最近一次安全套使用率均低于50%,近半年安全套坚持使用率均低于30%。2008-2012年HIV感染率分别为4.7%、2.9%、8.9%、9.0%和8.2%,呈现上升趋势,梅毒感染率分别为12.2%、6.6%、14.9%、13.1%和8.0%。结论该地MSM人群中HIV感染率处于较高水平并有上升趋势。加强动态监测,改变宣教方式,提高干预质量对于有效控制MSM中艾滋病的蔓延非常重要。

Objective To understand the awareness rate of AIDS related knowledge, sexual behaviors and the tendency of HIV/syphilis infections of men who have sex with men （MSM） in Ningbo City, and to provide effective prevention and control guidance to them. Methods The surveillance data among MSM in Ningbo from 2008 to 2012 was ana- lyzed. Results 384, 136, 404, 435 and 414 MSM were interviewed respectively. The awareness rate of AIDS related knowledge increased gradually. Totally 64. 6% -75.1% of MSM used condom at the last homosexual activities and 35.4% -43.4% of them used condom each time in the past six months. Less than 50% of MSM used last condom at heterosexual activities and less than 30% of them used condom each time in the past six months. The annual infection rate of HIV was 4. 7%, 2. 9%, 8. 9%, 9.0% and 8.2%, respectively, while that of syphilis was 12.2%, 6. 6%, 14. 9%, 13. 1% and 8.0%, respectively. Conclusions The infection rate of HIV among MSM was relatively high with increasing tendency in Ningbo. Therefore, it is very important to strengthen dynamic surveillance and health education, and improve intervention in MSM.