Salazar Laura F, Crosby Richard A, Holtgrave David R, Head Sara, Hadsock Benjamin, Todd Jeffrey, Shouse R Luke
Department of Behavioral Sciences and Health Education, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA.
AIDS Behav. 2007 Nov;11(6 Suppl):70-7. doi: 10.1007/s10461-007-9239-2. Epub 2007 May 9.
This study determined whether homeless injection drug users (IDUs) were more likely than stably housed IDUs to engage in HIV-associated risk behaviors. Respondent driven sampling was used to recruit 343 African American male IDUs. About 69% of men had been homeless in the past year and 13% were HIV positive. Controlling for age and income, homeless men as compared to stably housed men were 2.6 times more likely to report sharing needles, 2.4 times more likely to have 4 or more sex partners and 2.4 times more likely to have had sex with other men. Homeless men were also twice as likely to report having unprotected sex with a casual partner and about two-thirds less likely to report never using sterile needles. Self-reported HIV status was an effect modifier of these associations such that the observed relationships applied mostly only to men who were not knowingly HIV positive.
本研究旨在确定无家可归的注射吸毒者（IDU）是否比有稳定住所的IDU更有可能从事与艾滋病毒相关的危险行为。采用应答者驱动抽样法招募了343名非裔美国男性IDU。约69%的男性在过去一年中无家可归，13%为艾滋病毒阳性。在控制年龄和收入后，与有稳定住所的男性相比，无家可归的男性报告共用针头的可能性高2.6倍，有4个或更多性伴侣的可能性高2.4倍，与其他男性发生性行为的可能性高2.4倍。无家可归的男性报告与临时伴侣发生无保护性行为的可能性也高出一倍，而报告从未使用过无菌针头的可能性则低约三分之二。自我报告的艾滋病毒感染状况是这些关联的效应修饰因素，因此观察到的关系主要仅适用于那些不知道自己艾滋病毒呈阳性的男性。
