贵阳市2010～2014年MSM人群HIV感染者性行为情况

Characteristics of sexual behavior among HIV positive MSM in Guiyang from 2010 to 2014

目的：了解2010-2014年贵阳市MSM人群（men who have sex with men,MSM）HIV感染者性行为特征,为预防控制MSM人群HIV感染者二代传播提供依据。方法：本研究以2010-2014年的4-7月份在贵阳市MSM人群监测哨点检测出的HIV感染者为研究对象,以一对一的方式进行问卷调查,并采集静脉血进行HIV和梅毒检测。结果：2010-2014年贵阳市MSM人群监测哨点共检测出的333名HIV感染者,年龄在18-24岁,所占的比例由2010年的55.4%下降到2014年的26.7%,在婚或同居所占的比例在5.0%-15.8%之间;文化程度大专及以上者由2010年的45.7%上升到2014年的70.0%。2010-2014年MSM人群感染者的梅毒感染检出率在6.7%-23.9%之间;最近6个月与同性发生肛交性行为所占的比例分别为79.7%-98.9%,与异性发生性行为所占的比例在7.8%-11.7%之间。73.6%-91.4%的MSM最近6个月同性肛交未坚持使用安全套;异性行为坚持使用安全套所占的比例仅为33.3%。结论：MSM人群HIV感染者年龄较小,主要处于性活跃阶段,梅毒的感染检出率较高,同性性行为及异性性行为时坚持使用安全套的比例均较低,将加速HIV和梅毒在MSM人群间及向异性人群传播。

Objectives： To understand the characteristics of sexual behavior,and to determine the factors associated with syphilis infection among HIV positive men who have sex with men（ MSM） from 2010 to 2014 in Guiyang. Methods： The survey was conducted among HIV positive MSM who was participated sentinel surveillance during April to July from 2010 to 2014 in Guiyang. The survey was conducted one-by-one following questionnaire. Venous blood for HIV was collected and syphilis antibodies detection was done. Results： The sentinel surveillance result among MSM from 2010 to 2014 in Guiyang showed there were 333 MSM who were infected by HIV.The proportion of 18-24 years infected person decreased from 55. 4% in 2010 to 26. 7% in 2014. 5. 0% - 15. 8 of participates was living together or got married with women. The proportion of respondents completed college or higher education increased from 47. 5% in 2010 to 70. 0% in 2014. The syphilis prevalence was between 6. 7% and23. 9%. During past six months,79. 7% - 98. 9% of participates reported had anal sex with men,and 73. 6% -91. 4% of participates were not consistent use of condoms. 7. 8% - 11. 7% of participates self-reported had sex with women,and 1 /3 were consistent use of condoms. Conclusion： The characteristics of HIV infected MSM in Guiyang show that the age of the infected person is small,who are mainly in sexually active phase. The prevalence of syphilis infection is high,and the rate of condom use is low when having sex with men or women,which may increase H IV and syphilis spreading among MSM and general population.