TABLE 3.
Longitudinal regression models for prenatal treatment effect on growth in Peruvian infants
| Growth outcomes1 | Prenatal zinc | P |
|---|---|---|
| Weight (kg) | 0.58 ± 0.122 | <0.001 |
| Length (cm) | 0.13 ± 0.16 | 0.403 |
| Head circumference (cm) | 0.01 ± 0.09 | 0.939 |
| Mid-upper arm circumference (cm) | 0.09 ± 0.09 | 0.294 |
| Calf circumference (cm) | 1.01 ± 0.21 | <0.001 |
| Chest circumference (cm) | 0.60 ± 0.20 | 0.002 |
| Sum of skinfold thickness measures: triceps+calf+subscapular (mm) | 0.01 ± 0.01 | 0.456 |
| Arm fat area (mm2) | 3.07 ± 8.04 | 0.703 |
| Arm muscle (mm2) | 11.51 ± 14.91 | 0.440 |
| Calf fat area (mm2) | 8.64 ± 9.12 | 0.344 |
| Calf muscle area (mm2) | 35.78 ± 14.25 | 0.01 |
1
Longitudinal panel regression modeling with random effects, adjusted as appropriate for age; age quadratic; age × treatment interaction; sex; sex × treatment interaction; birth anthropometric measure; maternal anthropometry; primiparity; breastfeeding; complementary feeding in previous mo; diarrhea morbidity; and hygiene and sanitation index.
2
x¯ ± SE (all such values).