Delivery characteristics in the study groups before (P1) and after (P2) the implementation of the IADPSG criteria.

Data are presented as a number (%) or median (interquartile range).FHR, fetal heart rate.P values are based on the γ2 test or Mann-Whitney U test.a, Labor durations for women with spontaneous or operative vaginal deliveries.b, Indications for primary cesarean section. Some women had more than one indication for cesarean delivery.Delivery characteristics in the study groups before (P1) and after (P2) the implementation of the IADPSG criteria.