Table 2 Maternal outcomes by maternal pre-pregnancy BMI classification and by gestational weight gain according to Institute of Medicine Guidelines
Characteristics | All participants (n = 645) | Weight gain within IOM guideline (n = 267) | Weight gain below IOM guideline (n = 97) | Weight gain above IOM guideline (n = 281) | P-value |
|---|---|---|---|---|---|
Gestational hypertensive disorder | 65 (10.08) | 19 (7.12) | 5 (5.15) | 41 (14.59) | 0.004 |
Gestational hypertension | 20 (3.1) | 7 (2.62) | 2 (2.06) | 11 (3.91) | 0.643 |
Pre-eclampsia | 45 (6.98) | 12 (4.49) | 3 (3.09) | 30 (10.68) | 0.006 |
Gestational anemia | 273 (42.33) | 101 (37.83) | 49 (50.52) | 123 (43.77) | 0.077 |
Preterm premature rupture of membrane | 76 (11.78) | 37 (13.86) | 12 (12.37) | 27 (9.61) | 0.299 |
Preterm birth < 37 weeks | 472 (73.18) | 189 (70.79) | 75 (77.32) | 208 (74.02) | 0.422 |
Preterm birth < 35 weeks | 109 (16.9) | 49 (18.35) | 24 (24.74) | 36 (12.81) | 0.018 |
Preterm birth < 32 weeks | 27 (4.19) | 12 (4.49) | 5 (5.15) | 10 (3.56) | 0.692 |
Spontaneous Preterm birth < 37 weeks | 50 (7.75) | 17 (6.37) | 18 (18.56) | 15 (5.34) | < 0.001 |
Spontaneous Preterm birth < 35 weeks | 34 (5.27) | 14 (5.24) | 12 (12.37) | 8 (2.85) | 0.001 |
Spontaneous Preterm birth < 32 weeks | 13 (2.02) | 5 (1.87) | 5 (5.15) | 3 (1.07) | 0.056 |