TABLE 1.

Enrollment Characteristics of 4 Groups of Children 6 to 35 Months of Age in a Trial Evaluating 3 RDAs of Daily Zinc Administration as Treatment for Acute Diarrhea

VariableStudy Group
PlaceboZincVitamin A-ZincCaretaker-Zinc
Mean age, mo15.9 (7.9)15.3 (7.6)15.5 (7.8)15.4 (7.9)
Percentage of infants39.239.839.643.8
Percentage male gender54.658.854.453.6
Percentage breastfed81.482.883.683.7
Total number of stools 24 h before enrollment8.8 (4.1)9.0 (4.2)9.2 (4.5)8.8 (3.5)
Number of watery stools 24 h before enrollment3.1 (4.1)3.0 (4.0)3.2 (4.2)2.6 (3.8)
Percentage reporting blood in stool12.110.78.47.8
Mean number of diarrhea days before enrollment2.2 (1.2)2.1 (1.2)2.2 (1.1)2.2 (1.1)
Percentage dehydrated11.912.110.412.1
Percentage less than −2Z length for age (stunted)29.529.131.327.9
Percentage less than −2Z weight for length (wasted)23.321.523.820.3
Mean hemoglobin level (g/dL)11.2 (1.1)11.1 (1.1)11.1 (1.3)11.1 (1.3)
Percentage of mothers who can read50.053.145.658.1
Percentage of fathers who can read83.888.481.086.5
Average plasma zinc concentration (μmol/dL)8.6 (1.4)8.7 (2.2)8.8 (1.5)8.7 (1.9)
  • Standard deviation in parentheses; dehydration defined according to World Health Organization guidelines.