Fig. 3From: Should migraine without aura be further divided? A study of 1444 female patients with migraine without auraThe detailed statistical project of the study. The patients were divided according to the association of MWA onset with menarche and childbirth. Group J1: onset before menarche, group J2 onset after menarche but before childbirth, group J3 onset after childbirth. Patients who reported aggravation after childbirth in group J1 and group J2 were marked as J1-1 and J2-1, and those who reported no change were marked as J1-2 and J2-2Back to article page