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首页> 外文期刊>AIDS and behavior >Sampling Methodologies for Epidemiologic Surveillance of Men Who Have Sex with Men and Transgender Women in Latin America: An Empiric Comparison of Convenience Sampling, Time Space Sampling, and Respondent Driven Sampling
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Sampling Methodologies for Epidemiologic Surveillance of Men Who Have Sex with Men and Transgender Women in Latin America: An Empiric Comparison of Convenience Sampling, Time Space Sampling, and Respondent Driven Sampling

机译：拉丁美洲男男性行为者和变性女性的流行病学监测抽样方法：便利抽样，时空抽样和受访者驱动抽样的经验比较

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摘要

Alternatives to convenience sampling (CS) are needed for HIV/STI surveillance of most-at-risk populations in Latin America. We compared CS, time space sampling (TSS), and respondent driven sampling (RDS) for recruitment of men who have sex with men (MSM) and transgender women (TW) in Lima, Peru. During concurrent 60-day periods from June-August, 2011, we recruited MSM/TW for epidemiologic surveillance using CS, TSS, and RDS. A total of 748 participants were recruited through CS, 233 through TSS, and 127 through RDS. The TSS sample included the largest proportion of TW (30.7 %) and the lowest percentage of subjects who had previously participated in HIV/STI research (14.9 %). The prevalence of newly diagnosed HIV infection, according to participants' self-reported previous HIV diagnosis, was highest among TSS recruits (17.9 %) compared with RDS (12.6 %) and CS (10.2 %). TSS identified diverse populations of MSM/TW with higher prevalences of HIV/STIs not accessed by other methods.
机译：对于拉丁美洲最高风险人群的HIV / STI监测，需要便捷抽样（CS）的替代方案。我们比较了CS，时空抽样（TSS）和受访者驱动抽样（RDS）在秘鲁利马招募的男同性恋者（MSM）和跨性别女性（TW）。从2011年6月至8月的60天内，我们招募了MSM / TW使用CS，TSS和RDS进行流行病学监测。通过CS招募了748名参与者，通过TSS招募了233名参与者，通过RDS招募了127名参与者。 TSS样本包括最大比例的TW（30.7％）和最低参与过HIV / STI研究的受试者的百分比（14.9％）。根据参与者自我报告的先前的HIV诊断，新诊断的HIV感染率在TSS新兵中最高（17.9％），而RDS（12.6％）和CS（10.2％）最高。 TSS确定了MSM / TW的不同人群，其艾滋病毒/性传播感染的流行率是其他方法无法获得的。

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