HAQ Disability Index (HAQ-DI) for Rheumatic Disease

Calculates the Stanford HAQ Disability Index across 8 functional domains (dressing, arising, eating, walking, hygiene, reach, grip, activities) to assess functional impairment in RA, SSc, and other rheumatic diseases.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculates the Stanford HAQ Disability Index across 8 functional domains (dressing, arising, eating, walking, hygiene, reach, grip, activities) to assess functional impairment in RA, SSc, and other rheumatic diseases

Each component has a specific meaning:

  • 8 functional domains (dressing — The 8 functional domains (dressing recorded for the scenario being assessed.
  • Arising — The arising recorded for the scenario being assessed.
  • Eating — The eating recorded for the scenario being assessed.
  • Walking — The walking recorded for the scenario being assessed.
  • Hygiene — The hygiene recorded for the scenario being assessed.
  • Reach — The reach recorded for the scenario being assessed.

Note: Interpret the haq-di score result against the thresholds and context described above.

How to Use

Enter the 8 functional domains (dressing, arising, eating, walking, hygiene, reach for the scenario you are assessing. Calculates the Stanford HAQ Disability Index across 8 functional domains (dressing, arising, eating, walking, hygiene, reach, grip, activities) to assess functional impairment in RA, SSc, and other rheumatic diseases. Use the haq-di score result to inform your calculation.

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