Table 3 Neonatal outcomes by maternal pre-pregnancy BMI classification and by gestational weight gain according to Institute of Medicine Guidelines
Characteristics | All fetuses (n = 1290) | Weight gain within IOM guideline (n = 534) | Weight gain below IOM guideline (n = 194) | Weight gain above IOM guideline (n = 562) | P-value |
|---|---|---|---|---|---|
Birth weight < 2500 g | 823 (63.8) | 360 (67.42) | 149 (76.8) | 314 (55.87) | 0.003 |
Birth weight < 1500 g | 58 (4.5) | 32 (5.99) | 11 (5.67) | 15 (2.67) | 0.004 |
Small for gestational age | 69 (5.35) | 29 (5.43) | 16 (8.25) | 24 (4.27) | 0.109 |
Large for gestational age | 71 (5.5) | 19 (3.56) | 7 (3.61) | 45 (8.01) | 0.003 |
Neonatal intensive unit admission | 490 (37.98) | 206 (38.58) | 88 (45.36) | 196 (34.88) | 0.004 |
Neonatal respiratory distress syndrome | 79 (6.12) | 44 (8.24) | 13 (6.70) | 22 (3.91) | 0.009 |