Comparison Between Characteristics of VOICE-C and VOICE Participants at the Johannesburg Site (Wits RHI).

*Chi square of Fisher’s exact test for categorical variables, Wilcoxon Normal for continuous variables.
**Calculated as the ratio of the number of tablets or gel not returned over expected product use days cumulatively across all follow-up visits.
***Estimated at 3-month visit. Sample size is smaller because 60 participants missed the first quarterly visit; calculated as percentage of days in past week with self-reported product use.
Note: ACASI = audio computer-assisted self-interview. CRF = case report form. ns = non-significant. All continuous variable summaries are median, mean (minimum, maximum).