Fig. 1
From: A new classification allowing assessment of instrumental vaginal-birth practices
The 7 groups of the “Isère classification” for instrumental vaginal births. Groups 4 and 5 are women with full-term pregnancies who have already given birth vaginally (scarred uterus included); groups 6 and 7 are women who have never given birth vaginally (scarred uterus included). Among groups 4 to 7, groups 4 and 6 are women with spontaneous labor and groups 5 and 7 had undergone induction of labor