title: Gender ratio of migraine without aura: observations over time.
abstract: Migraine without aura is typically considered a female condition. The purpose of this study was to determine if there have been any changes in the female-to-male ratio of the disease over time. We included in the study all patients with migraine without aura (n = 3457) referred to the Parma University Headache Centre between 1976 and 1995. They were divided into subgroups with respect to gender and year-range of onset of migraine (before 1960, in the 1960s, in the 1970s, in the 1980s, and between 1990 and 1995). Gender ratio ranged from 3.6:1 (in patients with onset before 1960) to 2.8:1 (in patients with onset in the 1980s), with no statistically significant changes during the observation period.
authors: Headache Centre, Department of Neurology, University of Parma Ospedale Maggiore, via Gramsci 14, I-43100 Parma, Italy. cucurachi77@yahoo.com
authors: L
authors: L
authors: Cucurachi
authors: M
authors: M
authors: Devetak
authors: P
authors: P
authors: Torelli
authors: G
authors: G
authors: Lambru
authors: G C
authors: GC
authors: Manzoni