Stanford Health Assessment Questionnaire (HAQ)


Stanford Health Assessment Questionnaire (the HAQ).

Source Article
Fries JF, Spitz P, Kraines RG, Holman HR. Measurement of patient outcome in arthritis. Arthritis Rheum 1980;23: 137-145.

The Health Assessment Questionnaire (HAQ) was one of the first self-report functional status (disability) measures and has become the major instrument in many disease areas, including arthritis.

Structure / Content

There are two types of HAQ: full and short (2-page). The full HAQ assesses 5 dimensions of health outcome (see below). The short HAQ contains the HAQ Disability Index (HAQ-DI), the VAS Pain Scale, and the VAS Patient Global in a 2-page format.

  • 1. DISABILITY: These 8 categories make up the “Disability Index“ (HAQ-DI): Dressing, Walking, Arising, Reach, Eating, Grip, Hygiene, Outside activity.
  • 2. DISCOMFORT: HAQ VAS pain scale, Patient Global VAS [Supplemental dimensions also included in the Full HAQ (tailored to specific hypotheses or research questions)]
  • 3. DRUG SIDE EFFECTS: Medical, Toxicity Index, Surgical
  • 4. DOLLAR COSTS: Direct costs: Medical/surgical costs (Medications, Paramedical visits, Laboratory tests, Devices, Radiographs, Hospitalizations, Physician visits, Surgeries), Indirect costs: Loss of productivity
  • 5. DEATH: Time to death, Cause of death

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