Risk factors | 2018 (n = 659) | 2020 (n = 827) | p-value |
---|---|---|---|
Primiparous | 426 (65%) | 530 (64%) | 0.824 |
Multiparous (defined as two births or more) | 233 (35%) | 289 (35%) | 0.869 |
On-call duty (12 h shift, 6 pm-6 am) | 406 (62%) | 383 (46%) | < 0.001* |
Induction of labor (IOL) | 413 (63%) | 458 (55%) | 0.005* |
Missed date of birth | 267 (41%) | 414 (50%) | < 0.001* |
Obesity | 153 (23%) | 142 (17%) | 0.004* |
Premature rupture of membranes (PROM) | 179 (27%) | 205 (25%) | 0.299 |
Back position at birth | 225 (34%) | 143 (17%) | < 0.001* |
Maternal age > 35 | 193 (29%) | 233 (28%) | 0.637 |
Condition after caesarean section (CS) | 132 (20%) | 136 (16%) | 0.74 |
Preeclampsia | 44 (7%) | 47 (6%) | 0.427 |
Large for gestational age (LGA) | 18 (3%) | 58 (7%) | < 0.001* |
Diabetes | 96 (15%) | 122 (15%) | 0.92 |