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. 2019 Jul 23;82(3):257–264. doi: 10.1097/QAI.0000000000002134

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Copyright © 2019 The Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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FIGURE 2. — Weighted (IPCW) trends in unprotected sex and under-reporting of unprotected sex from baseline to M24 among female sex workers participating in a PrEP demonstration study in Cotonou, Benin (2014–2016). B, Baseline; M6, M12, M18, M24: 6-, 12- 18- 24-month follow-up visits; IPCW, inverse probability of censoring weighting; Yc-DNA, Y chromosomal DNA. A, Trends in unprotected sex in the last 2 days as measured by self-report or PSA. B, Trends in unprotected sex in the last 14 days as measured by self-report or Yc-DNA. C, Objective trends in unprotected sex as measured by STI, PSA, or Yc-DNA detection. D, under-reporting of unprotected sex in the last 2 days or in the last 14 days. Vertical lines denote 95% confidence intervals. Trends and comparisons between trends were assessed by contrasts: P-values are reported under each corresponding panel and are indicated in bold if statistically significant (P < 0.05).