Outcome | BMI < 18.5 (underweight) n = 1729 n (%) | BMI 18.5–24.9 (normal weight) n = 39,000 n (%) | BMI 25.0–29.9 (overweight) n = 14,526 n (%) | BMI 30.0–34.9 (obesity) n = 4855 n (%) | BMI ≥ 35 (severe obesity) n = 1690 n (%) |
---|---|---|---|---|---|
Induction of labor | 267 (15.4) | 6625 (17.0) | 3092 (21.3) | 1259 (25.9) | 503 (29.8) |
Cesarean section (total) | 265 (15.3) | 7101 (18.2) | 3285 (22.6) | 1269 (26.1) | 492 (29.1) |
Pre-labor | 143 (8.3) | 3768 (9.7) | 1634 (11.2) | 609 (12.5) | 210 (12.4) |
In labor | 122 (7.1) | 3333 (8.5) | 1651 (11.4) | 660 (13.6) | 282 (16.7) |
Instrumental delivery | 381 (22.0) | 9525 (24.4) | 3981 (27.4) | 1477 (30.4) | 540 (32.0) |
Preterm delivery (< 37 + 0) | 85 (4.9) | 1496 (3.8) | 586 (4.0) | 229 (4.7) | 91 (5.4) |
Birth gestation > 41 + 6 | 76 (4.4) | 2085 (5.3) | 859 (5.9) | 273 (5.6) | 89 (5.3) |
Apgar Score < 10 at 5 minc,a | 184 (10.7) | 4686 (12.0) | 1966 (13.6) | 758 (15.7) | 280 (16.6) |
Apgar Score < 7 at 5 minc,a | 21 (1.2) | 388 (1.0) | 178 (1.2) | 73 (1.5) | 26 (1.5) |
Apgar Score < 4 at 5 minc,a | 8 (0.5) | 135 (0.3) | 54 (0.4) | 30 (0.6) | 9 (0.5) |
Birthweight (mean)b | 3325.3 | 3507.5 | 3575.5 | 3618.1 | 3669.3 |
Birthweight ≤ 10th centiled,b | 306 (17.7) | 4211 (10.8) | 1374 (9.5) | 399 (8.2) | 110 (6.5) |
Birthweight < 2SDe,b | 102 (5.9) | 1207 (3.1) | 449 (3.1) | 136 (2.8) | 40 (2.4) |
LGAb | 18 (1.0) | 1121 (2.9) | 808 (5.6) | 428 (8.8) | 197 (11.7) |
Admitted to NICU | 133 (7.7) | 2554 (6.5) | 1100 (7.6) | 425 (8.8) | 166 (9.8) |