Journal
AIDS AND BEHAVIOR
Volume 18, Issue 12, Pages 2338-2348Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10461-013-0680-0
Keywords
MSM; Latin America; Respondent-driven sampling; Time space sampling
Funding
- NCATS NIH HHS [UL1 TR000124] Funding Source: Medline
- NIAID NIH HHS [P30 AI028697, P30 AI027763] Funding Source: Medline
- NIMH NIH HHS [T32 MH080634, P30 MH58107, K23 MH08461, K23 MH084611, P30 MH058107] Funding Source: Medline
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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.
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