Fig. 3From: Cesarean delivery in Norwegian nulliparous women with singleton cephalic term births, 1967–2020: a population-based studyAdjusted Relative risk (ARRa) of cesarean delivery in nulliparous women with singleton, cephalic and term birth, stratified by maternal age, onset of labor: spontaneous onset, and induction onset, and time periods, N = 1 051 940. a Adjusted for maternal education, mother’s country of birth and birthweightBack to article page