Maternal Outcome | All Participants (N = 741) | Below IOM aGWG (N = 201) | Within IOM aGWG (N = 320) | Above IOM aGWG (N = 220) | |
---|---|---|---|---|---|
N (%) b | N (%) b | N (%) b | N (%) b | P value c | |
Gestational age at delivery, weeks, median (IQR) | 37.0 (35.7, 38.0) | 36.9 (35.6, 38.0) | 37.1 (35.7, 38.0) | 37.0 (35.7, 37.9) | 0.49 |
PTB <37 weeks | |||||
Overall | 353 (47.6) | 104 (51.7) | 142 (44.4) | 107 (48.6) | 0.25 |
Spontaneous | 155 (20.9) | 49 (24.4) | 67 (20.9) | 39 (17.7) | 0.25 |
Indicated | 198 (26.7) | 55 (27.4) | 75 (23.4) | 68 (30.9) | 0.15 |
Labour induction | 235 (31.7) | 67 (33.3) | 86 (26.9) | 82 (37.3) | 0.03 |
Mode of delivery | |||||
Vaginal birth (unassisted) | 304 (41.0) | 98 (48.8) | 125 (39.1) | 81 (36.8) | 0.03 |
Forceps/ vacuum | 50 (6.8) | 12 (6.0) | 25 (7.8) | 13 (5.9) | 0.60 |
Caesarean section | 387 (52.2) | 91 (45.3) | 170 (53.1) | 126 (57.3) | 0.04 |
Postpartum haemorrhage | 148 (20.0) | 42 (20.9) | 63 (19.7) | 43 (19.6) | 0.93 |
Length of stay, days, median (IQR) | 3.4 (2.7, 4.3) | 3.2 (2.5, 4.1) | 3.5 (2.8, 4.3) | 3.6 (2.8, 4.6) | 0.02 |