title: What is an adequate length of baseline in research and clinical practice with chronic headache?
abstract: We examined the representatives of baseline headache diary recording periods of 1, 2, 3, and 4 weeks for three kinds of headache disorder--tension, migraine, and combined migraine and tension. For research purposes at pretreatment, 2 weeks of diary recording are preferable for tension headache, while at least 3 weeks are preferred for migraine and combined headache. At follow-up, 1 week of diary recording appears adequate for all three headache types. Recommendations are also made for clinical practice.
authors.affiliation: Center for Stress and Anxiety Disorders, State University of New York, Albany 12203.
authors.forename: E B
authors.initials: EB
authors.lastname: Blanchard
authors.forename: J
authors.initials: J
authors.lastname: Hillhouse
authors.forename: K A
authors.initials: KA
authors.lastname: Appelbaum
authors.forename: J
authors.initials: J
authors.lastname: Jaccard
mesh_terms: D000328:Adult; D001676:Biofeedback, Psychology; D005260:Female; D005500:Follow-Up Studies; D006261:Headache / Q000628:therapy; D006801:Humans; D008297:Male; D008881:Migraine Disorders / Q000628:therapy; D012064:Relaxation Therapy; D013997:Time Factors