National Center for the Prevention of HIV & AIDS (CENSIDA), Mexico City, Mexico.
BMC Public Health. 2012 Jun 13;12:433. doi: 10.1186/1471-2458-12-433.
Although men who have sex with men (MSM) are disproportionately affected by HIV/AIDS in Mexico, data on current risk behaviors in this population are lacking. This study investigated the prevalence and correlates of unprotected anal intercourse (UAI) in a sample of 260 MSM in Tijuana, Mexico.
In June 2010, men attending a gay pride celebration were invited to complete a sexual risk survey. Men who reported UAI with a male partner in the past year were compared with men who reported only protected anal sex during the same period.
Mean age of participants was 29.7; 54% had a high school diploma or less; and 43% were unemployed. In the past year, 55% had been tested for HIV, 21% reported using illicit drugs before or during sex, and 94% had sex only with men. Overall, 50% reported having UAI with another male in the past year. Factors independently associated with UAI in the past year were unemployment (AOR = 1.87), attending adult movie theaters (AOR = 2.21), using illicit drugs before or during sex (AOR = 2.43), and not having a recent HIV test (AOR = 1.85).
Interventions to promote HIV testing and condom use among men who have sex with men may want to consider venue-specific approaches, as well as focus on drug-use issues in the context of unsafe sex.
尽管男男性行为者（MSM）在墨西哥不成比例地受到艾滋病毒/艾滋病的影响，但关于该人群当前风险行为的数据却很缺乏。本研究调查了 260 名在墨西哥提华纳的男男性行为者样本中无保护肛交（UAI）的流行率和相关因素。
2010 年 6 月，参加同性恋骄傲庆典的男性受邀完成一项性风险调查。报告在过去一年中与男性伴侣发生 UAI 的男性与同期报告仅进行保护肛交的男性进行了比较。
参与者的平均年龄为 29.7 岁；54%的人完成了高中学业；43%的人失业。在过去的一年中，55%的人接受过 HIV 检测，21%的人报告在性行为前后使用过非法药物，94%的人仅与男性发生过性关系。总体而言，50%的人报告在过去一年中与另一名男性发生过 UAI。与过去一年发生 UAI 独立相关的因素包括失业（AOR = 1.87）、光顾成人电影院（AOR = 2.21）、在性行为前后使用非法药物（AOR = 2.43）和没有最近的 HIV 检测（AOR = 1.85）。
针对男男性行为者开展的促进 HIV 检测和使用安全套的干预措施，可能需要考虑特定场所的方法，以及在不安全性行为的背景下关注药物使用问题。
