重庆市不同性取向的男男性接触者HIV高危性行为分析

HIV risk sexual behavior among MSM with different sex orientation in Chongqing

目的了解比较重庆市男同性恋或双性恋者HIV高危行为情况,为行为干预提供理论依据。方法在2006年6-9月依托同性恋活动场所和志愿者组织以滚雪球的方式招募被调查对象,采用匿名面对面询问方式进行问卷调查,对其中男同性恋和男双性恋者的性行为进行比较分析。结果共调查561人,其中50.6%、45.5%分别自我认同为同性恋或双性恋者。男同性恋与男双性恋者中,20～29岁组分别占50.4%、33.9%;在婚比例分别为12.7%、46.5%(均P<0.01)。同性恋者首次性行为是男性性伴的比例(67.3%)高于双性恋者(32.5%),与男性首次性行为的年龄(25.5岁)低于双性恋者(28.2岁)。最近6个月同性恋者与男性肛交的比例(87.3%)高于双性恋者(78.8%)(P<0.05);且肛交时每次都用安全套的比例均很低,分别为22.9%和18.4%。最近6个月同性恋、双性恋者与女性发生性行为的比例分别为16.9%、49.8%(P<0.01);且从未使用安全套的比例较高,分别为50.0%和57.5%。同性恋、双性恋者通过付钱方式得到男性提供的性服务的比例分别为7.7%、4.1%,与这种男性发生肛交时每次都用安全套的比例分别为63.6%、25.0%(均P<0.05)。结论男双性恋者有较高比例的已婚率和女性性伴,男同性恋者与男性发生性行为的比例更高,且两者的无保护性肛交的频率很高,应加强对该人群的监测和综合干预。

Objective To investigate sexual risk behavior of HIV among MSM with different sex orientation and provide evidence for intervention in MSM. Methods MSM were recruited using snowballing method from gay venue and volunteer workgroup from June to September 2006. Face - to - face interview was conducted anonymously to collect sexual behaviors by questionnaire. Results Of total 561 respondents, 50.6% admitted gay and 45.5% bisexual （Bi）. 20- 29 age group of Gay and Bi had 50.4%, 33.9%. Bi had more marriage status than Gay （P 〈0. 01 ）. The proportion of first sex with male partner was higher in gay （67.3%） than in bisexual man （32.5%）. First sex age with man of gay （25.5 years old ） was younger than bisexual man（28.2 years old ）. In the last six months, the proportion of anal sex was higher in gay （87.3%） than in bisexual man （78.8%） （P 〈0.05） and condom use rate was low with gay, 22.9% and Bi, 18.4%. 16.9% gay and 49.8% Bi had sex with female in the past 6 months （ P 〈 0. 01 ） and showed high proportion of never using condom, 50.0% and 57.5 %. 7.7 % of gay and 4. 1% of Bi bought sex with male sex partner, and consistent condom use rate were 63.6% and 25.0% （P 〈 0. 05）. conclusion There observed high proportion of marriage and female sex partner in Bi and male sex partner in gay, as well as frequent unprotective anal sex in two groups, and needed surveillance and intervention.