Table 3.
Interaction of maternal prenatal cortisol and invitation time to start the prenatal food supplementation program with birth weight (g), length (cm), and head circumference (cm) among Bangladeshi mothers and male infants in the Maternal Infant Nutritional Interventions Matlab study.
| Males (n=507) | Birth weight (g)a | Birth length (cm)a | Head circumference (cm)a | |||
|---|---|---|---|---|---|---|
| β | p | β | p | β | p | |
| Intercept | 2945.3 | <0.01 | 49.0 | 0.01 | 33.6 | <0.01 |
| Cortisolb | −20.1 | 0.01 | −0.1 | 0.03 | −0.1 | 0.01 |
| Food supplementc | ||||||
| Early | −259.4 | 0.02 | −1.1 | 0.08 | −1.1 | 0.02 |
| Usual | 0 | 0 | 0 | 0 | 0 | 0 |
| Cortisol*Food | ||||||
| Supplement | ||||||
| Cortisol * Early | 25.3 | 0.02 | 0.1 | 0.04 | 0.1 | 0.02 |
| Cortisol * Usual | 0 | 0 | 0 | 0 | 0 | 0 |
| R2 | 0.014 | 0.020 | 0.018 | |||
Model controlling for type of micronutrient intervention (p > 0.05): Iron (60 mg) + 400 g folic acid (reference); Iron (30 mg) + 400 g folic acid; and Multiple micronutrients (MMN) that included 15 recommended micronutrients, including iron 30 mg, as described by Persson et al. (2012).
Cortisol obtained at 28-32 wk gestation and was continuous.
Invitation time to start food supplementation program was either early (~9 wk gestation) or usual (~20 wk gestation). Because of the inclusion of the interaction terms in the model, the coefficients for early-invitation food supplementation represent differences in anthropometry between early-invitation and usual-invitation when cortisol is zero.