Schwarcz Sandra, Scheer Susan, McFarland Willi, Katz Mitchell, Valleroy Linda, Chen Sanny, Catania Joseph
San Francisco Department of Public Health, Calif 94102, USA.
Am J Public Health. 2007 Jun;97(6):1067-75. doi: 10.2105/AJPH.2005.072249. Epub 2007 Apr 26.
We sought to determine the prevalence of HIV and novel cofactors of high-transmission-risk behavior in a probability sample of men who have sex with men (MSM).
We performed a cross-sectional telephone survey of 1976 adult MSM in San Francisco.
We found an HIV prevalence of 25.2%. Predictors of unprotected insertive anal intercourse with a serodiscordant (not having the same HIV/AIDS serostatus) partner among HIV-infected men included use of Viagra and a greater number of partners in the past 12 months. Unprotected receptive anal intercourse with a serodiscordant partner among men not known to be HIV infected was independently associated with having lived in San Francisco for less than 1 year, use of crystal methamphetamine and amyl nitrites, a greater number of partners, and agreement with the statement, "You are less careful about being safe with sex or drugs than you were several years ago because there are better treatments for HIV now."
Strategies to prevent HIV for urban MSM should focus on new predictors of HIV transmission.
我们试图在男男性行为者(MSM)的概率样本中确定HIV的流行率以及高传播风险行为的新辅助因素。
我们对旧金山1976名成年男男性行为者进行了横断面电话调查。
我们发现HIV流行率为25.2%。在HIV感染者中,与血清学不一致(HIV/AIDS血清状态不同)的伴侣进行无保护插入式肛交的预测因素包括使用伟哥以及在过去12个月内有更多性伴侣。在未知是否感染HIV的男性中,与血清学不一致的伴侣进行无保护接受式肛交独立相关的因素包括在旧金山居住不到1年、使用冰毒和亚硝酸戊酯、性伴侣更多,以及认同“因为现在有更好的HIV治疗方法,所以你在性行为或吸毒时比几年前更不注意安全”这一说法。
针对城市男男性行为者预防HIV的策略应关注HIV传播的新预测因素。