There were 821 subjects enrolled in this study.Of the 414 randomized to the treatment (Hydroxychloroquine) arm, 49 (11.8%) developed Covid (or probable Covid) within 14 days of randomization. Of the 407 randomized to the placebo arm, 58 (14.3%) developed Covid (or probable Covid) within 14 days of randomization.

Estimate (and report)a 95% CI for the population proportion of persons treated with Hydroxchloroquine who would develop Covid (or probable Covid) within 14 days of randomization.