Fisher Jeffrey D, Smith Laramie
Center for Health, Intervention, and Prevention, University of Connecticut, 2006 Hillside Road, Unit 1248, Storrs, CT 06269-1248, USA.
Curr Opin HIV AIDS. 2009 Jul;4(4):279-87. doi: 10.1097/COH.0b013e32832c7ce5.
To provide a state-of-the-science review of the literature on secondary prevention of HIV infection or 'prevention for positives' (PfP) interventions.
Early work on PfP focused on understanding the dynamics of risky behavior among People Living with HIV/AIDS (PLWH) and on designing, implementing, and evaluating a limited number of interventions to promote safer sexual and drug use behavior in this population (i.e., PfP interventions). Previous meta-analyses demonstrated that PfP interventions can effectively promote safer behavior. However, the understanding of risk dynamics among PLWH and the extant number and breadth of effective PfP interventions were scant. Recent work has addressed some of these problems, yielding greater understanding of risk dynamics and providing additional, effective interventions. Still, only a modest number of recent, rigorously evaluated, effective interventions have been identified. New ideas for creating stronger, more integrated, and effective PfP interventions have emerged that will guide future intervention research and practice.
There remains much to be done to understand why, when, and under what conditions PLWH practice risk. Substantial work also needs to be performed to design, implement, rigorously evaluate, and when effective, to disseminate widely, additional, evidence-based PfP interventions targeting diverse populations. Directing such interventions to populations of PLWH at greatest risk for transmission of HIV has the potential to yield significant impact on the pandemic.
对关于艾滋病毒感染二级预防或“阳性预防”(PfP)干预措施的文献进行科学现状综述。
早期的PfP工作主要集中在了解艾滋病毒/艾滋病感染者(PLWH)的危险行为动态,以及设计、实施和评估有限数量的干预措施,以促进该人群更安全的性行为和药物使用行为(即PfP干预措施)。以往的荟萃分析表明,PfP干预措施可有效促进更安全的行为。然而,对PLWH中风险动态的理解以及有效的PfP干预措施的现有数量和广度都很有限。近期的工作已经解决了其中一些问题,对风险动态有了更深入的了解,并提供了更多有效的干预措施。尽管如此,仅发现了少数近期经过严格评估的有效干预措施。已经出现了一些关于创建更强有力、更综合且有效的PfP干预措施的新想法,这些想法将指导未来的干预研究和实践。
在理解PLWH为何、何时以及在何种情况下会实施危险行为方面,仍有许多工作要做。还需要开展大量工作来设计、实施、严格评估,并在有效时广泛传播更多针对不同人群的循证PfP干预措施。将此类干预措施针对艾滋病毒传播风险最高的PLWH人群,有可能对这一流行病产生重大影响。