Risk factors for uterine rupture in women with prior delivery by caesarean section.

aPercentage of individuals with complete data.bAdjusted for woman's age as a continuous linear term, ethnicity, body mass index as a continuous linear term, parity as a continuous linear term, number of previous caesarean deliveries as a continuous linear term, previous uterine surgery, interval between last caesarean section and last menstrual period as a categorical term, placenta praevia, and macrosomia.cLabour either not induced or induced without prostaglandin.