Table 6:
Sensitivity analyses including markers of socioeconomic status
| HEI Q1 aRR (95% CI) | HEI Q2 aRR (95% CI) | HEI Q3 aRR (95% CI) | HEI Q4 | |
|---|---|---|---|---|
| Maternal outcomes | ||||
| Gestational diabetes mellitus | 1.09 (0.78–1.53) | 1.07 (0.79–1.35) | 1.00 (0.74–1.35) | Ref |
| Cesarean delivery | 1.12 (1.00–1.25) | 1.07 (0.96–1.19) | 1.06 (0.96–1.17) | Ref |
| Major perineal laceration | 0.78 (0.53–1.14) | 1.02 (0.77–1.35) | 0.99 (0.77–1.28) | Ref |
| Postpartum hemorrhage requiring transfusion | 3.32 (1.48–7.44) | 1.98 (0.91–4.31) | 1.57 (0.70–3.52) | Ref |
| Hypertensive disorder of pregnancy | 1.13 (1.00–1.29) | 1.10 (0.98–1.24) | 1.05 (0.93–1.19) | Ref |
| Neonatal outcomes | ||||
| Preterm (<37 weeks) | 1.11 (0.88–1.42) | 1.07 (0.8501.33) | 0.99 (0.79–1.23) | Ref |
| NICU admission | 1.18 (1.00–1.39) | 1.21 (1.04–1.41) | 1.18 (1.02–1.37) | Ref |
| Small for gestational age (<10%ile) | 1.03 (0.83–1.27) | 1.01 (0.83–1.23) | 0.88 (0.72–1.07) | Ref |
| Low birth weight <2500g | 1.09 (0.83–1.44) | 1.01 (0.78–1.31) | 0.86 (0.66–1.13) | Ref |
| Macrosomia >4000g | 0.63 (0.49–0.81) | 0.81 (0.65–0.99) | 0.85 (0.70–1.04) | Ref |
Data displayed as adjusted relative risks (95% confidence interval), estimated through a Poisson regression model.
HEI, Healthy Eating Index; quartile 4 represents the best quality of periconceptional diet and is the referent. NICU, neonatal intensive care unit
Adjusted for age, body mass index, tobacco use, chronic hypertension, pregestational diabetes mellitus, mental health disorder, race/ethnicity, insurance status, and marital status.