TABLE 2

Effect of Vitamin D Supplementation of Milk on Number of ARIs

FactornRR95% CI
Random-intercept negative binomial modela
 Unadjusted2440.520.31–0.89
 Adjusted for baseline wheeze history2310.500.28–0.92
 Adjusted for baseline wheeze history, age, and gender2310.500.28–0.88
  • a Adjusts for correlation within randomly assigned classrooms.