Table 3

Intrapartum and postpartum outcomes for matched physicians and non-physicians

OutcomePhysicians
(n=7237)
Non-physicians
(n=36 185)
Unadjusted
RR (95% CI)
Adjusted RR† (95% CI)
Intrapartum
Mode of delivery
 Caesarean section2161 (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 vaginal838 (11.6)4035 (11.2)1.04 (0.97 to 1.11), p=0.281.03 (0.96 to 1.11), p=0.36
 Spontaneous vaginal4238 (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=0.320.81 (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.