TABLE 3

Selected P Values in Intention-to-Treat Analysis

OutcomeP
Iron depletion.419
Ferritin level.387
Bottle use1 × e−4
Age at cup start.001
Age at bottle-weaning.004
  • For iron depletion and bottle use, χ2 tests (without continuity correction) were used. The rest of the outcomes were tested with Welch t tests (which allowed for nonequal variances).