TABLE 2.
Descriptive statistics of zinc status by treatment group (n = 674)
| Variables | Placebo1 | Zinc2 | P3 | P4 |
| Baseline zinc (μg/dL) | 75.6 ± 12.65 | 75.0 ± 13.0 | 0.54 | 0.01 |
| Follow-up zinc (μg/dL) | 105.9 ± 31.3 | 111.7 ± 31.2 | 0.02 | |
| Baseline zinc deficient (%)6 | 19.6 | 23.0 | 0.28 | 0.01 |
| Follow-up zinc deficient (%)6 | 4.4 | 1.2 | 0.01 |
1
n = 331 at baseline and 318 at follow-up for the placebo group.
2
n = 343 at baseline and 328 at follow-up for the zinc group.
3
t test for comparison of means; chi-square test for comparison of proportions.
4
Derived by repeated-measurements analysis to test the interaction between treatment and time and accounting for clustering of children within the same household.
5
Mean ± SD (all such values).
6
Zinc concentrations <65 μg/dL (46).