title: Overlap of migraine and tension-type headache in the International Headache Society classification.
abstract: Using questionnaire data from two recent surveys, headache sufferers were classified as having either migraine, episodic, or chronic tension-type headache using the International Headache Society criteria. Of 410 subjects with a headache history of 2 years or more, 147 or 35.9% were assigned Code 1.7 (migrainous disorder not fulfilling the above criteria) or Code 2.3 (headache of the tension-type not fulfilling above criteria). In 79 of these 147 subjects (53.7%), either of the above codes would have been equally valid. Separate scores for "migraine" and "tension" symptoms may provide a way to handle this overlap and aid in choosing optimal therapy.
authors.affiliation: John R Graham Headache Centre, Faulkner Hospital, Boston, Massachusetts.
authors.forename: H B
authors.initials: HB
authors.lastname: Messinger
authors.forename: E L
authors.initials: EL
authors.lastname: Spierings
authors.forename: A J
authors.initials: AJ
authors.lastname: Vincent
mesh_terms: D006261:Headache / Q000145:classification*; D006801:Humans; D008881:Migraine Disorders / Q000145:classification*; D011795:Surveys and Questionnaires