RAND Health, RAND Corporation, Santa Monica, California 90407-2138, USA.
J Adolesc Health. 2012 Oct;51(4):386-92. doi: 10.1016/j.jadohealth.2012.01.015. Epub 2012 Mar 13.
There is growing interest in network-based interventions to reduce HIV sexual risk behavior among both homeless youth and men who have sex with men. The goal of this study was to better understand the social network and individual correlates of sexual risk behavior among homeless young men who have sex with men (YMSM) to inform these HIV prevention efforts.
A multistage sampling design was used to recruit a probability sample of 121 homeless YMSM (ages: 16-24 years) from shelters, drop-in centers, and street venues in Los Angeles County. Face-to-face interviews were conducted. Because of the different distributions of the three outcome variables, three distinct regression models were needed: ordinal logistic regression for unprotected sex, zero-truncated Poisson regression for number of sex partners, and logistic regression for any sex trade.
Homeless YMSM were less likely to engage in unprotected sex and had fewer sex partners if their networks included platonic ties to peers who regularly attended school, and had fewer sex partners if most of their network members were not heavy drinkers. Most other aspects of network composition were unrelated to sexual risk behavior. Individual predictors of sexual risk behavior included older age, Hispanic ethnicity, lower education, depressive symptoms, less positive condom attitudes, and sleeping outdoors because of nowhere else to stay.
HIV prevention programs for homeless YMSM may warrant a multipronged approach that helps these youth strengthen their ties to prosocial peers, develop more positive condom attitudes, and access needed mental health and housing services.
人们对基于网络的干预措施越来越感兴趣,这些措施旨在减少无家可归的青年男同性恋者和男男性行为者中的艾滋病毒性风险行为。本研究的目的是更好地了解无家可归的男男性行为青年男性(YMSM)的社交网络和个体相关性,以便为这些艾滋病毒预防工作提供信息。
采用多阶段抽样设计,从洛杉矶县的收容所、中途停留中心和街头场所招募了 121 名无家可归的 YMSM(年龄:16-24 岁)作为概率样本。进行了面对面访谈。由于三个结果变量的分布不同,因此需要三个不同的回归模型:非保护性行为的有序逻辑回归、性伴侣数量的零截断泊松回归和任何性交易的逻辑回归。
如果 YMSM 的网络包括与经常上学的同龄人建立的柏拉图式关系,或者如果他们的大多数网络成员不是酗酒者,那么他们发生无保护性行为和性伴侣数量较少的可能性较小。网络构成的大多数其他方面与性行为风险无关。性行为风险行为的个体预测因素包括年龄较大、西班牙裔、教育程度较低、抑郁症状、对避孕套的态度较消极,以及由于无处可住而睡在户外。
针对无家可归的 YMSM 的艾滋病毒预防计划可能需要采取多管齐下的方法,帮助这些年轻人加强与亲社会同伴的联系,培养更积极的避孕套态度,并获得所需的心理健康和住房服务。