McGovern Medical School, University of Texas Health Science Center, Houston, TX, United States.
Fred Hutchinson Cancer Research Center, Seattle, WA, United States.
Drug Alcohol Depend. 2018 Feb 1;183:267-274. doi: 10.1016/j.drugalcdep.2017.11.018. Epub 2018 Jan 4.
Sexual contact has been shown to be a major mode of HIV transmission among people who inject drugs (PWID). This study examined gender and racial differences among PWID' sexual risk behaviors from the perspective of sexual scripts.
696 PWID enrolled from Philadelphia on HPTN 037 were classified as engaging in high-risk sex behaviors if they reported having sex in the past 30 days and condomless sex with a non-primary partner, giving/receiving sex for money, or multiple partners. A multivariable logistic regression model was used to assess associations between demographic factors and high risk sex.
Findings of the multivariable regression analysis demonstrated that being White (OR = 0.52, p < 0.001) and male (OR = 0.59, p = 0.002) were protective of high risk sex, while homelessness (OR = 1.7, p = 0.005), and being single (OR = 1.83, p = 0.006) were positively associated with high risk sex. African American (AA) women were 1.7 times more likely to report high-risk sex than AA men (p = 0.002), 3.28 times more likely than White men (p < 0.001), and 1.93 times more likely than White women (p < 0.001).
Since AA women report high-risk sex behaviors more than other demographic groups, behavioral interventions for HIV risk reduction among PWID may benefit from focusing on sex-risk reduction among AA women.
性接触已被证实是注射吸毒者(PWID)中 HIV 传播的主要途径。本研究从性脚本的角度考察了 PWID 性行为的性别和种族差异。
从费城招募的 696 名 PWID,如果他们报告在过去 30 天内发生性行为且与非主要性伴侣发生无保护性行为、性交易或有多个性伴侣,则被归类为具有高风险性行为。采用多变量逻辑回归模型评估人口统计学因素与高风险性行为之间的关联。
多变量回归分析的结果表明,白人(OR=0.52,p<0.001)和男性(OR=0.59,p=0.002)是高风险性行为的保护因素,而无家可归(OR=1.7,p=0.005)和单身(OR=1.83,p=0.006)与高风险性行为呈正相关。非裔美国女性(AA 女性)报告高风险性行为的可能性是 AA 男性的 1.7 倍(p=0.002),是白人男性的 3.28 倍(p<0.001),是白人女性的 1.93 倍(p<0.001)。
由于 AA 女性报告的高风险性行为多于其他人群,因此针对 PWID 的 HIV 风险降低的行为干预措施可能受益于专注于 AA 女性的性风险降低。