Metzger D S, Navaline H, Woody G E
University of Pennsylvania/VA Medical Center, Center for Studies of Addiction, Philadelphia, PA 19104, USA.
Public Health Rep. 1998 Jun;113 Suppl 1(Suppl 1):97-106.
As the acquired immunodeficiency syndrome (AIDS) epidemic among drug users enters its third decade in the United States, it is important to consider the role playing by substance abuse treatment in the prevention of human immunodeficiency virus (HIV) infection.
The authors review the research literature, examining findings from studies with behavioral and serologic measures on the association among treatment participation, HIV risk reduction, and HIV infection.
Numerous studies have now documented that significantly lower rates of drug use and related risk behaviors are practiced by injecting drug users (IDUs) who are in treatment. Importantly, these behavioral differences, based primarily on self-report, are consistent with studies that have examined HIV seroprevalence and seroincidence among drug users.
The underlying mechanism of action suggested by the collective findings of the available literature is rather simple-- individuals who enter and remain in treatment reduce their drug use, when leads to fewer instances of drug-related risk behavior. This lower rate of exposure results in fewer infections with HIV. The protective effects of treatment, however, can only be achieved when programs are accessible and responsive to the changing needs of drug users. Future research needs to be directed at developing a better understanding of the factors that enhance treatment entry and retention.
在美国,吸毒者中获得性免疫缺陷综合征(艾滋病)的流行已进入第三个十年,因此有必要考虑药物滥用治疗在预防人类免疫缺陷病毒(HIV)感染中所起的作用。
作者回顾了研究文献,审视了关于治疗参与、降低HIV风险和HIV感染之间关联的行为学及血清学测量研究结果。
现在大量研究表明,接受治疗的注射吸毒者的吸毒率及相关风险行为发生率显著更低。重要的是,这些主要基于自我报告的行为差异与针对吸毒者中HIV血清阳性率和血清发病率的研究结果一致。
现有文献的综合研究结果表明,其潜在作用机制相当简单——进入并持续接受治疗的个体减少了吸毒行为,这进而导致与毒品相关的风险行为减少。这种较低的暴露率使得HIV感染减少。然而,只有当项目易于获得且能响应吸毒者不断变化的需求时,治疗的保护作用才能实现。未来的研究需要致力于更好地理解促进治疗进入和持续的因素。