title: The Henry Ford Hospital Headache Disability Inventory (HDI).
abstract: To quantify the impact of headache of daily living, we developed a 25-item headache disability inventory (HDI). The alpha version of the HDI (alpha-HDI) consisted of 40 items, each requiring a "yes" (four points), "sometimes" (two points), or "no" (zero points) response based on items derived empirically from case history responses of subjects with headache. From the alpha-HDI, we derived a 25-item beta version (beta-HDI) with the items subgrouped into functional and emotional subscales. The internal consistency/reliability was strong, as was construct validity. The test-retest reliability for the beta-HDI was acceptable for the total score and functional and emotional subscale scores. A 29-point change (95% confidence interval) or greater in the total score from test-retest must occur before the changes can be attributed to treatment effects. The HDI is useful in assessing the impact of headache, and its treatment, on daily living.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Henry Ford Hospital, Detroit, MI 48202.
authors.forename: G P
authors.initials: GP
authors.lastname: Jacobson
authors.forename: N M
authors.initials: NM
authors.lastname: Ramadan
authors.forename: S K
authors.initials: SK
authors.lastname: Aggarwal
authors.forename: C W
authors.initials: CW
authors.lastname: Newman
mesh_terms: D000328:Adult; D004185:Disability Evaluation; D005260:Female; D006261:Headache / Q000503:physiopathology* / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results