TABLE 1.
Maternal and infant characteristics1
| Variable | Value | Range |
|---|---|---|
| Maternal age, y | 27 ± 5.1 | 18–37 |
| Gravida | 2.2 ± 1.6 | 1–6 |
| EGA, wk | 28.2 ± 2.8 | 22.9–33.0 |
| EGA < 28 wk | 16 (42) | |
| Prepregnancy BMI, kg/m2 | 31 ± 7.8 | 19–53.8 |
| Black | 32.5 ± 8.4 | |
| White | 28.8 ± 6.1 | |
| Infant birth weight, g | 1098 ± 347.3 | 545–2130 |
| Infant sex (male) | 20 (53) | |
| Race | ||
| Black | 25 (66) | |
| White | 13 (34) | |
| Mothers who delivered twins | 3 (8) | |
| Smoker | 2 (5) | |
| Prenatal vitamins | 33 (87) | |
1
n = 38. Values are n (%) or mean ± SD. Supplemental Tables 1–7 provide complete statistical results, interactions, and covariates for each nutrient at each point in time. EGA, estimated gestational age.