Health Assessment Questionnaire-Disability Index (HAQ-DI)
The Health Assessment Questionnaire (HAQ) was developed as a comprehensive measure of outcomes in patients with a wide variety of rheumatic diseases (Fries, Spitz, Kraines, & Holman, 1980).
It should be considered a generic rather than a disease-specific instrument.
The HAQ has been administered primarily in one of two versions, short HAQ-DI (Disability Index) or the Full HAQ. The HAQ-DI assesses the extent of a patient’s functional ability.
It is composed of 20 items in 8 categories (Dressing and Grooming, Hygiene, Arising, Reach, Eating, Grip, Walking, Common Daily Activities).