Intrapartum and postpartum outcomes for matched physicians and non-physicians
| Outcome | Physicians (n=7237) | Non-physicians (n=36 185) | Unadjusted RR (95% CI) | Adjusted RR† (95% CI) |
| Intrapartum | ||||
| Mode of delivery | ||||
| Caesarean section | 2161 (29.9) | 11 656 (32.2) | 0.93 (0.89 to 0.86), p<0.0001* | 0.97 (0.93 to 1.00), p=0.07 |
| Operative vaginal | 838 (11.6) | 4035 (11.2) | 1.04 (0.97 to 1.11), p=0.28 | 1.03 (0.96 to 1.11), p=0.36 |
| Spontaneous vaginal | 4238 (58.6) | 20 494 (56.6) | 1.03 (1.01 to 1.06), p=0.0013* | 1.01 (0.99 to 1.03), p=0.25 |
| Obstetrical anal sphincter injury | ||||
| N (%) | 122 (1.7) | 624 (1.7) | 0.98 (0.81 to 1.18), p=0.82 | –‡ |
| Postpartum | ||||
| Maternal postpartum emergency department visits or hospitalisations | ||||
| N (%) Median (IQR) | 403 (5.6) 0 (0–0) | 2827 (7.8) 0 (0–0) | 0.71 (0.63 to 0.80), p<0.0001* | 0.82 (0.73 to 0.93), p=0.0014* |
| Neonatal ED visits or hospitalisation | ||||
| N (%) Median (IQR) | 845 (11.7) 0 (0–0) | 4739 (13.1) 0 (0–0) | 0.87 (0.66 to 1.15), p=0.32 | 0.81 (0.62 to 1.06), p=0.13 |
Neonatal outcomes adjusted for SGA, LGA and gestational weeks of delivery.
*Denotes significance.
†Intrapartum outcomes adjusted for comorbidities (Aggregated Diagnosis Groups), diabetes, gestational diabetes, hypertension or hypertensive disorder of pregnancy, gestational age at delivery, small for gestational age (SGA, <5% for sex and gestational weeks) and large for gestational age (LGA, >10% for sex and gestational weeks). Maternal postpartum outcomes adjusted for the same variables as well as mode of delivery (caesarean section, operative vaginal or spontaneous vaginal delivery).
‡Adjusted RR not calculable due to low number experiencing the outcome.