兰州市2006-2013年男男性接触人群艾滋病流行病学调查研究

目的了解兰州市男男性接触人群（MSM）性行为特征、人类免疫缺陷病毒（HIV）和梅毒感染状况以及影响因素,为制定本市MSM人群艾滋病（AIDS）干预策略提供依据。方法招募MSM志愿者,采用＂滚雪球＂的方法于2006-2013年对本市MSM进行一对一问卷调查并进行血清学检测,使用EpiData 3.1软件录入数据,SPSS 16.0软件进行数据整理和统计分析。结果本研究共调查2 090人,检出HIV阳性者93例,感染率为4.45%,梅毒阳性者264例,感染率为12.63%;连续8年的MSM人群的HIV感染率经χ2检验（χ2=30.149,P〈0.05）,差异有统计学意义;连续8年的MSM人群的梅毒感染率经χ2检验（χ2=92.406,P〈0.05）,差异有统计学意义。86.36%（1 805/2 090）的MSM最近6个月发生过同性性行为,安全套坚持使用率为43.55%（786/1 805）;26.60%（556/2 090）的MSM最近6个月发生过异性性行为,安全套坚持使用率为34.89%（194/556）;6.04%（109/1 805）的MSM最近6个月发生过商业同性性行为,安全套坚持使用率为56.88%（62/109）。结论兰州市MSM艾滋病知晓率较高,高危性行为比较严重,HIV和梅毒感染率较高,应该加强该人群高危性行为的干预。

Epidemiological survey of HIV/AIDS among MSM in Lanzhou in 2006--2013

Objective To understand the epidemiological characteristics of HIV/AIDS among man who has sex with man （MSM）, and to analyze its influencing factors. Methods A questionnaire survey was conducted a- mong MSM volunteers recruited by ＂snowball＂ method in Lanzhou from 2006 to 2013. Blood samples were collected for serological test. EpiData3.1 and SPSS16.0 software were used for data entry and statistical analysis. Results Out of 2 090 MSM surveyed, 93 were HIV positive with the positive rate of 4.45%. Meanwhile, 264 MSM were found to he positive for syphilis with the positive rate of 12.63%. Both HIV and syphilis posi rive rates varied significantly from 2006 to 2013 （χ2 = 30. 149, P〈0.05; χ2=92. 406, P〈0.05） . The survey also found that there were 86.36%, 26.60/oo and 6.04% of MSM who claimed of having homosexual, heterosexual and commercial sexual behaviors in recent 6 months with only 43.55%, 34.89% and 56.88% MSM admitting of condom use during each sexual intercourse. Conclusions The positive rates of HIV and syphilis among MSM in Lanzhou are still relatively high which might be related to high risk sexual behaviors, there- fore, health education and behavioral intervention need to be strengthened among MSM.