HAQ-DI (Health Assessment Questionnaire Disability Index)
HAQ-DI (Health Assessment Questionnaire Disability Index) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
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What this is
HAQ-DI (Health Assessment Questionnaire Disability Index) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. HAQ-DI (Health Assessment Questionnaire Disability Index) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Fries JF, Spitz P, Kraines RG, Holman HR. Measurement of patient outcome in arthritis. Arthritis Rheum. 1980;23(2):137-145. Eight functional categories, each 0-3; HAQ-DI = mean of the categories (>= 6 of 8 answered), range 0-3. Aids/help raise a category scored 0-1 to 2. Read the source ↗
Worked example: HAQ-DI 2/3
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