Department of Psychiatry, University of Illinois, USA.
Health Psychol. 2011 Sep;30(5):597-605. doi: 10.1037/a0023858.
Young men who have sex with men (MSM), particularly young men of color, are experiencing the largest increase in HIV incidence of any risk group in the United States Epidemiological research suggests that the majority of transmissions among MSM are occurring in the context of primary partnerships, but little research has been done on the processes within these dyads that increase HIV risk behaviors. The aim of this study was to use longitudinal partnership-level data to explore the effects of partner and relationship characteristics on the frequency of unprotected sex within young MSM relationships.
One hundred twenty-two young MSM (age 16-20 at baseline) were assessed at three time-points six months apart, with 91% retention at the 12-month follow-up wave. Over 80% were racial/ethnic minorities. At each wave, participants reported on characteristics of the relationships and partners for up to three sexual partners. Hierarchical linear modeling was used for analyses.
The largest effect was for considering the relationship to be serious, which was associated with nearly an eightfold increase in the rate of unprotected sex. Other factors that increased risk behaviors included older partners, drug use prior to sex, physical violence, forced sex, and partnership lasting more than six months. Partners met online were not associated with significantly more sexual risk.
These data provide insight into the relationship processes that should be addressed in prevention programs targeted at young MSM. Relationships may serve as a promising unit for HIV prevention interventions, although more formative research will be required to address potential logistical obstacles to implementing such interventions. The partner-by-partner analytic approach (i.e., evaluating situational variables associated with several partners for a given participant) holds promise for future HIV behavioral research.
男男性行为者(MSM),尤其是年轻的有色人种男性,其艾滋病毒感染率在美国所有风险群体中增长最快。流行病学研究表明,大多数 MSM 之间的传播发生在主要伴侣关系中,但对这些二元关系中增加艾滋病毒风险行为的过程研究甚少。本研究旨在使用纵向伙伴关系数据,探讨伙伴和关系特征对年轻 MSM 关系中无保护性行为频率的影响。
122 名年龄在 16-20 岁的年轻 MSM(基线时)在相隔六个月的三个时间点进行评估,12 个月随访时的保留率为 91%。超过 80%为种族/族裔少数群体。在每一波中,参与者报告了多达三个性伴侣的关系和伴侣特征。使用分层线性模型进行分析。
考虑关系是认真的,这与无保护性行为的发生率几乎增加了八倍,这是最大的影响。其他增加风险行为的因素包括年龄较大的伴侣、性行为前吸毒、身体暴力、强迫性性行为以及持续超过六个月的伴侣关系。在线认识的伴侣与显著更多的性风险无关。
这些数据为针对年轻 MSM 的预防计划提供了对关系过程的深入了解,这些关系可能成为艾滋病毒预防干预的一个有希望的单位,尽管需要更多的形成性研究来解决实施此类干预的潜在后勤障碍。伙伴对伙伴的分析方法(即,为特定参与者评估与几个伴侣相关的情境变量)为未来的艾滋病毒行为研究提供了希望。