AIDS. 2013 Jul 31;27(12):1979-88. doi: 10.1097/qad.0b013e3283617500.
Black men who have sex with men and women (MSMW) experience high HIV rates and may not respond to interventions targeting gay-identified men. We tested the efficacy of the Men of African American Legacy Empowering Self (MAALES), a multisession, small-group holistically framed intervention designed to build skills, address sociocultural issues, and reduce risk behaviors in black MSMW.
From 2007 to 2011, we enrolled 437 black MSMW into a parallel randomized controlled trial that compared MAALES to the control condition, a single, individualized HIV risk-reduction session.
Participants completed surveys at baseline, 3 months, and 6 months postintervention. We used multiple regressions to compare risk behaviors at follow-up between the intervention and control groups while adjusting for baseline risk behaviors, time between assessments, other covariates, and clustering. We used inverse probability weighting (IPW) to adjust for loss-to-follow-up while carrying out these regressions with the 291 (76.4%) randomized participants who completed at least one follow-up.
Participants were largely low-income (55% reported monthly incomes <$1000); nearly half had previously tested HIV positive. At 6 months of follow-up, unadjusted within-group analyses demonstrated reduced risk behaviors for the MAALES but not the control group. Adjusted results indicated significant intervention-associated reductions in the numbers of total anal or vaginal sex acts [risk ratio = 0.61; 95% confidence interval (CI) 0.49–0.76], unprotected sex acts with women (risk ratio = 0.50; 95% CI 0.37–0.66), and female partners (risk ratio = 0.56; 95% CI 0.44–0.72). Near significant reductions were observed for number of male intercourse partners.
The MAALES intervention was efficacious at reducing HIV risk behaviors in black MSMW.
与男性和女性发生性关系的黑人男男性行为者(MSMW)感染艾滋病毒的比例较高,而针对同性恋男性的干预措施可能对他们无效。我们测试了 Men of African American Legacy Empowering Self(MAALES)的效果,这是一个多阶段、小组、整体框架的干预措施,旨在培养技能、解决社会文化问题,并减少黑人 MSMW 的风险行为。
2007 年至 2011 年,我们招募了 437 名黑人 MSMW 参加平行随机对照试验,将 MAALES 与对照组(一次单独的个体化艾滋病毒风险降低会议)进行比较。
参与者在基线、3 个月和 6 个月时完成了调查。我们使用多元回归分析比较了干预组和对照组在随访时的风险行为,同时调整了基线风险行为、评估时间、其他协变量和聚类。我们使用逆概率加权(IPW)来调整失访情况,同时对至少完成一次随访的 291 名(76.4%)随机参与者进行了这些回归。
参与者主要是低收入者(55%报告月收入<1000 美元);近一半人以前曾检测出 HIV 阳性。在 6 个月的随访中,未调整的组内分析显示 MAALES 组的风险行为减少,但对照组没有。调整后的结果表明,干预与以下风险行为的显著减少相关:总肛交或阴道性交次数[风险比=0.61;95%置信区间(CI)0.49-0.76]、与女性发生的无保护性行为[风险比=0.50;95%CI 0.37-0.66]和女性伴侣[风险比=0.56;95%CI 0.44-0.72]。男性性伴侣数量也出现了接近显著的减少。
MAALES 干预措施在减少黑人 MSMW 的艾滋病毒风险行为方面是有效的。