McFarland W, Fischer-Ponce L, Katz M H
Center for AIDS Prevention Studies, University of California, San Francisco, USA.
Am J Epidemiol. 1995 Oct 1;142(7):719-23. doi: 10.1093/oxfordjournals.aje.a117702.
The authors assessed the characteristics of repeat human immunodeficiency virus (HIV) testers at publicly funded sites in San Francisco. During 1992-1993, 31% of all HIV tests were performed on persons testing negative for the third time or more. Persons with greater numbers of prior negative tests were less likely to test HIV-positive. Repeat negative testers were more likely than first-time negative testers to be homosexual or bisexual males, homosexual or bisexual injection drug users (IDUs), or heterosexual IDUs. Repeat testers who seroconverted were more likely to be in these same transmission categories than repeat testers who remained negative. Because of the similarities in risk profile between those most likely to retest and those most likely to seroconvert, attempts to limit repeat testing must proceed cautiously.
作者评估了旧金山公共资助场所中重复进行人类免疫缺陷病毒（HIV）检测者的特征。在1992年至1993年期间，所有HIV检测中有31%是对第三次或更多次检测呈阴性的人进行的。之前检测呈阴性次数较多的人感染HIV呈阳性的可能性较小。与首次检测呈阴性者相比，重复检测呈阴性者更有可能是男同性恋或双性恋男性、同性恋或双性恋注射吸毒者（IDU），或异性恋IDU。血清转化的重复检测者比仍呈阴性的重复检测者更有可能属于这些相同的传播类别。由于最有可能再次检测者和最有可能血清转化者在风险特征上存在相似性，因此限制重复检测的尝试必须谨慎进行。
