Previous CD | Previous VD | P value | |
Mothers age in years, mean (SD) | 31.1 (4.6) | 29.9 (4.4) | <0.001 |
Diabetes, N (%) | 2095 (4.9) | 4834 (1.9) | <0.001 |
Start of delivery, N (%) | |||
Spontaneous | 22 707 (53.0) | 211 165 (84.0) | |
Induced | 7179 (17.0) | 30 895 (12.0) | <0.001 |
CD | 13 074 (30.0) | 9570 (4.0) | |
Mode of delivery*, N (%) | |||
Vaginal delivery | 20 826 (48.0) | 235 372 (94.0) | <0.001 |
CD | 22 136 (52.0) | 16 264 (6.0) | |
Gestational age at birth in weeks mean (SD) | 39.1 (2.0) | 39.5 (1.7) | <0.001 |
Birth weight in grams mean (SD) | 3577 (613) | 3630 (541) | <0.001 |
Congenital anomalies, N (%) | 2007 (4.7) | 9537 (3.8) | <0.001 |
Sex†, N (%) | |||
Female | 20 958 (49.0) | 122 307 (49.0) | 0.50 |
Apgar score after 5 min‡, N (%) | |||
0–3 | 292 (1.0) | 1048 (0.4) | |
4–6 | 1196 (3.0) | 2955 (1.2) | <0.001 |
7–10 | 41 407 (96.0) | 247 028 (98.4) | |
Transferred NICU, N (%) | |||
Yes | 5424 (13.0) | 16 502 (7.0) | <0.001 |
*2 (0.005%) deliveries with missing information about start of delivery in the previous CD group and 6 (0.002%) in the previous VD group.
†12 (0.005%) deliveries with missing information about sex in the previous VD group.
‡67 (0.16%) deliveries with missing information about Apgar score in the previous CD group and 605 (0.24%) in the previous VD group.
CD, caesarean delivery; NICU, neonatal intensive care unit; VD, vaginal delivery.