Risk of assisted vaginal delivery and fetal distress for mothers delivering as private patients compared with mothers delivering as public patients in a study population of 158,241a WA vaginal births.

aRestricted to vaginal, singleton, term births (37–41 completed weeks), where the infant was live born and without birth defects.bAdjusted for year of birth, maternal age, parity, smoking during pregnancy, marital status, ethnicity (Caucasian/Indigenous/other), pre-existing medical conditions (asthma/hypertension/diabestes), SES quintiles, residential remoteness, gestation, pregnancy complications, analgesia during labour (none/gas or intramuscular/epidural/spinal), and whether the labour was induced.