Daily short message service surveys to measure sexual behavior and pre-exposure prophylaxis use among Kenyan men and women
Curran, K.; Mugo, N.R.; Kurth, A.; Ngure, K.; Heffron, R.; Donnell, D.; Celum, C.; Baeten, J.M.
Aids and Behavior 17(9): 2977-2985
2013
ISSN/ISBN: 1090-7165 PMID: 23695519 DOI: 10.1007/s10461-013-0510-4Document Number: 582190
Pre-exposure prophylaxis (PrEP) is a novel HIV prevention strategy which requires high adherence. We tested the use of daily short message service (i.e., SMS/text message) surveys to measure sexual behavior and PrEP adherence in Kenya. Ninety-six HIV-uninfected adult individuals, taking daily oral PrEP in a clinical trial, received daily SMS surveys for 60 days. Most participants (96.9 %) reported taking PrEP on ≥80 % days, but 69.8 % missed at least one dose. Unprotected sex was reported on 4.9 % of days; however, 47.9 % of participants reported unprotected sex at least once. Unprotected sex was not correlated with PrEP use (OR = 0.95). Participants reporting more sex were less likely to report PrEP non-adherence and those reporting no sex were most likely to report missing a PrEP dose (adjusted OR = 1.87). PrEP adherence was high, missed doses were correlated with sexual abstinence, and unprotected sex was not associated with decreased PrEP adherence.
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