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Predicted and Observed HIV Infection Risk in EXPLORE, VAX004, HIV Prevention Trials Network 061, and HIV Vaccine Trials Network 505 Cohort Studies.*
* C-statistics for internal validation in the development cohort EXPLORE=79.5; and external validation cohorts VAX004=73.1, HPTN 061=71.0, and HVTN 505=71.9. The Sex Pro Score risk strata of 16–20 for HPTN 061 is blank because all participants in this cohort had predicted and observed Sex Pro scores of <16.
