Association between ethnicity and infant weight at age 3 months, and the degree to which this is explained by other risk factors
| Mean difference (95% CI) in infant weight at 3 months (kg) | |||
|---|---|---|---|
| European N=493 | Māori or Pacific N=115 | Other N=79 | |
| Unadjusted | 0 (ref) | 0.19 (0.01 to 0.38) p=0.04 | 0.05 (−0.16 to 0.27) p=0.62 |
| Adjusted for sociodemographic variables* | 0 (ref) | 0.16 (−0.04 to 0.36) p=0.11 | 0.07 (−0.15 to 0.29) p=0.65 |
| Adjusted for maternal pre-pregnancy BMI | 0 (ref) | 0.18 (−0.01 to 0.37) p=0.06 | 0.06 (−0.15 to 0.28) p=0.58 |
| Adjusted for maternal dietary pattern scores† | 0 (ref) | 0.22 (0.03 to 0.41) p=0.02 | 0.03 (−0.18 to 0.25) p=0.76 |
| Adjusted for all measured potential mediators‡ | 0 (ref) | 0.17 (−0.03 to 0.38) p=0.10 | 0.03 (−0.19 to 0.25) p=0.76 |
N=687 using multiply imputed data.
Values are mean differences (95% CIs) in infant weight at age 3 months (kg) from linear regression, comparing each ethnic group with the reference category, European ethnicity.
*Adjusted for maternal education, maternal age and NZ deprivation index.
†Adjusted for scores for all five dietary patterns.
‡Adjusted for maternal education, maternal age, NZ deprivation index, maternal pre-pregnancy BMI, scores for all five dietary patterns, hypertension during pregnancy, diabetes during pregnancy, physical activity during pregnancy, exclusive breastfeeding at 3 days, exclusive breastfeeding at 3 months, and early introduction of solid foods.
BMI, body mass index.