Outcomes for BMI Categories.
| Normal weight | Overweight | Obese Class I | Obese Class II | p-value | |
|---|---|---|---|---|---|
| Mean GA at delivery (weeks) | 38.1 | 37.5 | 37.2 | 35.5 | <0.0001 |
| Birthweight (g) | 2543 | 2473 | 2414 | 1989 | 0.0055 |
| EFW (<2 weeks of delivery) | 2426 | 2307 | 2317 | 1984 | 0.0011 |
| Median % difference | 6.3% | 6.4% | 5.9% | 6.6% | 0.9828 |
Note: P-value compares BMI < 25 to BMI > 25