Table 5.
Comparison of maternal and neonatal outcomes in the four pre-pregnancy BMI groups
| Pre-pregnancy BMI category | |||||
|---|---|---|---|---|---|
| Underweight (N = 420) |
Normal weight (N = 2292) |
Overweight (N = 401) |
Obese (N = 59) |
P-value | |
| Maternal outcomes | |||||
| Gestational weeks | 0.267 | ||||
| ≥ 28 and < 37 | 23 (5.5) | 96 (4.2) | 24 (6.0) | 4 (6.8) | |
| ≥ 37 and < 42 | 397 (94.5) | 2191 (95.6) | 377 (94.0) | 55 (93.2) | |
| ≥ 42 | 0 (0) | 5 (0.2) | 0 (0) | 0 (0) | |
| Delivery mode | < 0.001 | ||||
| Eutocia | 284 (67.6) | 1312 (57.2) | 172 (42.9) | 26 (44.1) | |
| Caesarean section | 126 (30.0) | 948 (41.4) | 223 (55.6) | 32 (54.2) | |
| Midwifery practice | 10 (2.4) | 32 (1.4) | 6 (1.5) | 1 (1.7) | |
| Maternal complications | |||||
| Anemia | 0.274 | ||||
| No | 370 (88.1) | 1970 (86.0) | 336 (83.8) | 53 (89.8) | |
| Yes | 50 (11.9) | 322 (14.0) | 65 (16.2) | 6 (10.2) | |
| PROM | 0.132 | ||||
| No | 373 (88.8) | 2007 (87.6) | 339 (84.5) | 55 (93.2) | |
| Yes | 47 (11.2) | 285 (12.4) | 62 (15.5) | 4 (6.8) | |
| GDM | < 0.001 | ||||
| No | 387 (92.1) | 2041 (89) | 325 (81) | 47 (79.7) | |
| Yes | 33 (7.9) | 251 (11.0) | 76 (19.0) | 12 (20.3) | |
| GHp | < 0.001 | ||||
| No | 415 (98.8) | 2246 (98.0) | 375 (93.5) | 52 (88.1) | |
| Yes | 5 (1.2) | 46 (2.0) | 26 (6.5) | 7 (11.9) | |
| Neonatal outcomes | |||||
| Birth weight | < 0.001 | ||||
| Low birth weight | 21 (5.0) | 78 (3.4) | 10 (2.5) | 3 (5.1) | |
| Normal birth weight | 383 (91.2) | 2070 (90.3) | 337 (84.0) | 47 (79.7) | |
| Macrosomia | 16 (3.8) | 144 (6.3) | 54 (13.5) | 9 (15.3) | |
| Gestational age (GA) | < 0.001 | ||||
| Small for GA | 32 (7.6) | 137 (6.0) | 13 (3.2) | 0 (0) | |
| Normal GA | 363 (86.4) | 1934 (84.4) | 311 (77.6) | 48 (81.4) | |
| Large for GA | 25 (6.0) | 221 (9.6) | 77 (19.2) | 11 (18.6) | |
Note: PROM Premature rupture of membranes, GDM Gestational diabetes mellitus, GHp Gestational hypertension