Prevalence of migraine on each day of the natural menstrual cycle.
Diary data from 155 women were analyzed using within-woman analysis. Compared with all other times of the cycle, migraine was 1.7 times more likely to occur during the 2 days before menstruation and 2.1 times more likely to be severe and 2.5 times more likely to occur during the first 3 days of menstruation and 3.4 times more likely to be severe. This confirms that migraine at menstruation is different from nonmenstrual attacks, even within individuals.
City of London Migraine Clinic and Department of Gynaecology, St. Bartholomew's Hospital, London, UK.
E Anne
EA
MacGregor
Allan
A
Hackshaw
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008499:Medical Records; D008597:Menstrual Cycle; D008875:Middle Aged; D008881:Migraine Disorders / Q000453:epidemiology*; D015995:Prevalence; D011446:Prospective Studies; D012306:Risk