TABLE 3.

Impact of Zinc Supplementation on the Incidence of All and Severe Diarrhea Corrected for Correlation of Episodes Occurring in the Same Child by GEE Logistic Regression Models Analysis

Zinc (n = 1228)Placebo (n = 1236)OR (95% CI)
Total child-years of follow-up361.7368.2
Number of 7-d child-periods with ≥4 d of follow-up1884119179
Child-periods with an incident episode of diarrhea275831210.88 (0.82–0.95)
Child-periods with an incident diarrhea episode lasting
 1–6 d234825670.92 (0.85–1.00)
 7–13 d2433120.79 (0.65–0.95)
 ≥14 d52770.69 (0.48–0.98)
Child-periods with an incident diarrhea episode with maximum stools/d
 3–5220424530.90 (0.83–0.98)
 6–97919180.87 (0.77–0.98)
 ≥102353100.77 (0.63–0.94)