From the Laboratory of Infectious Disease Prevention, Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY.
Sex Transm Dis. 2014 Mar;41(3):200-8. doi: 10.1097/OLQ.0000000000000090.
Concurrent partnerships are a significant public health concern among men who have sex with men (MSM). This study describes the prevalence of concurrency and its association with serodiscordant/serostatus unknown unprotected anal or vaginal intercourse (SDUI) among MSM in New York City.
A total of 1458 MSM completed a social and sexual network inventory about their male and female sex partners, including concurrency, in the last 3 months. Logistic regression identified factors associated with SDUI.
Median age was 29 years. The proportion of participants who reported being HIV+ was 23.5%. The men reported a mean of 3.2 male partners in the last 3 months. The proportion of MSM who reported having recent SDUI was 16.6%. More than half (63.2%) described having concurrent sex partners (individual concurrency based on overlapping dates of relationships); 71.5% reported having partners whom they believed had concurrent partners (perceived partner concurrency); and 56.1% reported that both they and their partners had concurrent partners (reciprocal concurrency). Among HIV+ men by self-report, having SDUI was positively associated with individual concurrency, any alcohol use during sex, having more male sex partners, and not having a main partner. Among self-reported HIV- men, having SDUI was positively associated with perceived partner concurrency, lower education level, any alcohol and drug use during sex, having more male sex partners, and having an anonymous partner.
Concurrency was common among MSM. The association of SDUI with individual and perceived partner concurrency, along with substance use during sex, having an anonymous partner, and having many sex partners likely further increases HIV acquisition and transmission risk among MSM. HIV prevention interventions should address concurrency among MSM.
同时拥有多个性伴侣是男男性行为者（MSM）中的一个重大公共卫生问题。本研究描述了在纽约市的 MSM 中，同时拥有多个性伴侣的流行情况及其与血清不一致/血清不确定的无保护肛交或阴道交（SDUI）之间的关联。
共有 1458 名 MSM 完成了关于他们的男性和女性性伴侣（包括同时拥有多个性伴侣）的社交和性网络清单。Logistic 回归分析确定了与 SDUI 相关的因素。
参与者的中位年龄为 29 岁。报告 HIV 阳性的参与者比例为 23.5%。男性在过去 3 个月报告的平均男性性伴侣数为 3.2 个。报告最近有 SDUI 的 MSM 比例为 16.6%。超过一半（63.2%）的人描述了同时拥有性伴侣（基于关系重叠日期的个体同时拥有性伴侣）；71.5%的人报告说他们的伴侣有同时拥有性伴侣（感知到的伴侣同时拥有性伴侣）；56.1%的人报告说他们和他们的伴侣都有同时拥有性伴侣（互惠同时拥有性伴侣）。在自我报告的 HIV 阳性男性中，SDUI 与个体同时拥有性伴侣、性活动中饮酒、拥有更多男性性伴侣和没有主要伴侣呈正相关。在自我报告的 HIV 阴性男性中，SDUI 与感知到的伴侣同时拥有性伴侣、受教育程度较低、性活动中饮酒和使用毒品、拥有更多男性性伴侣以及拥有匿名伴侣呈正相关。
同时拥有多个性伴侣在 MSM 中很常见。SDUI 与个体和感知到的伴侣同时拥有性伴侣、性活动中同时使用物质、拥有匿名伴侣以及拥有多个性伴侣之间的关联可能会进一步增加 MSM 获得和传播 HIV 的风险。HIV 预防干预措施应针对 MSM 中的同时拥有多个性伴侣问题。
