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Migrainous headaches may afflict 5.8 million. (Up to 3% of U.S. Population).

DENVER -- Migrainous headache, the diagnosis that describes patients who meet most but not all of the International Headache Society's strict criteria for migraine, may afflict 3% of the population, based on results of an epidemiologic study.

By International Headache Society (IHS) criteria, patients have migrainous headache if their pain is unilateral and pulsating. They also meet criteria even if their pain is neither unilateral nor pulsating, so long as it is associated with nausea, vomiting, or sensitivity to light and sound, explained Dr. David Dodick of the Mayo Clinic, Scottsdale, Ariz., at the annual meeting of the American Academy of Neurology.

He analyzed nearly 30,000 responses to a headache survey that was part of the American Migraine Study II (AMS-II). Based upon responses to 300 questions, 13% met rigorous IHS criteria for the diagnosis of migraine with or without aura. Another 3% met IHS criteria for migrainous headache.

Extrapolating from U.S. Census data, this equates to an estimated 5.8 million Americans with migrainous headache (27.9 million have migraine), said Dr. Dodick.
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Author:Jancin, Bruce
Publication:Clinical Psychiatry News
Article Type:Brief Article
Geographic Code:1USA
Date:Jun 1, 2002
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