Johnson Robert A, Gerstein Dean R, Pach Alfred, Cerbone Felicia Gray, Brown Jerry
Addiction. 2002 Aug;97(8):1011-24. doi: 10.1046/j.1360-0443.2002.00165.x.
We explore the mechanisms by which 'partnership-level' variables--the mix of characteristics of individuals who inject drugs together--affect the incidence of HIV risk behaviors, including receptive syringe sharing, and facilitate or impede the spread of HIV.
We apply multivariate analysis techniques to data on injection partnerships (pairs of individuals who inject drugs together) collected using a network sample of 401 African-American IDUs in Washington, DC.
Drug injectors tended to select injection partners of the same gender and similar age, but risk behaviors were most common in partnerships between individuals who are dissimilar in both gender and age. Partners who had a sexual relationship, injected drugs frequently together, smoked crack-cocaine regularly, injected speedball (heroin mixed with cocaine) regularly and/or had close social ties were more likely to engage in risky injection practices than otherwise similar partners. These factors account largely for the association between the gender-age mix of the partnership and injection risk behavior.
Among African-American IDUs in Washington DC, partnership-level variables appear critical in the transmission of HIV.
我们探讨“伙伴关系层面”的变量——一起注射毒品的个体特征组合——影响包括接受性共用注射器在内的艾滋病毒风险行为发生率，并促进或阻碍艾滋病毒传播的机制。
我们将多变量分析技术应用于使用华盛顿特区401名非裔美国注射吸毒者的网络样本收集的注射伙伴关系（一起注射毒品的个体对）数据。
吸毒者倾向于选择同性和年龄相近的注射伙伴，但风险行为在性别和年龄都不同的个体之间的伙伴关系中最为常见。有性关系、经常一起注射毒品、经常吸食快克可卡因、经常注射速球（海洛因与可卡因混合）和/或有密切社会关系的伙伴比其他类似伙伴更有可能从事危险的注射行为。这些因素在很大程度上解释了伙伴关系的性别年龄组合与注射风险行为之间的关联。
在华盛顿特区的非裔美国注射吸毒者中，伙伴关系层面的变量在艾滋病毒传播中似乎至关重要。
