Alcohol Research Group, 6475 Christie Ave., Suite 400, Emeryville, CA 94608-1010, USA.
AIDS Behav. 2013 Jun;17(5):1862-72. doi: 10.1007/s10461-012-0213-2.
Data from 635 very poor men who have sex with men (MSM) were used to identify seroadaptation with 1,102 male partners reported between 2005 and 2007 in Los Angeles as part of the Sexual Acquisition and Transmission of HIV Cooperative Agreement Program. The mean age of the sample was 41.7 years; 53 % had experienced homelessness in the past year. Condoms were reported in 51 % of sexual events involving anal intercourse. HIV seroconcordance was reported in 41 % of sexual partnerships among HIV-positive participants. HIV-positive men were more likely to have oral-only or unprotected receptive anal intercourse and less likely to have unprotected insertive anal intercourse with HIV-negative or unknown partners compared to HIV-positive partners. Even in the face of poverty, HIV-positive MSM report mitigating risks of HIV-transmission though seroadaptation in the context of modest rates of condom use.
该研究的数据来源于 635 名男男性行为者（MSM），他们于 2005 年至 2007 年在洛杉矶作为性获得和传播艾滋病毒合作协议项目的一部分，报告了与 1102 名男性性伴之间的性行为。该样本的平均年龄为 41.7 岁；53%的人在过去一年中经历过无家可归。在涉及肛交的性事件中，有 51%报告使用了安全套。在 HIV 阳性参与者中，41%的性伴侣报告 HIV 血清一致性。与 HIV 阳性伴侣相比，HIV 阳性男性更有可能与 HIV 阴性或未知的伴侣进行单纯口交或无保护的接受肛交，而不太可能与 HIV 阳性伴侣进行无保护的插入肛交。即使在贫困的情况下，HIV 阳性 MSM 也报告了通过血清适应来减轻 HIV 传播的风险，同时适度使用安全套。
