DAS28 Rheumatoid Arthritis Activity

Calculate the Disease Activity Score-28 (DAS28) for rheumatoid arthritis using tender joint count, swollen joint count, ESR or CRP, and patient global assessment.

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

Calculate the Disease Activity Score-28 (DAS28) for rheumatoid arthritis using tender joint count, swollen joint count, ESR or CRP, and patient global assessment

Each component has a specific meaning:

  • Tender joint count — The tender joint count recorded for the scenario being assessed.
  • Swollen joint count — The swollen joint count recorded for the scenario being assessed.
  • ESR or CRP — The esr or crp recorded for the scenario being assessed.

Note: Interpret the das28 result against the thresholds and context described above.

How to Use

Enter the tender joint count, swollen joint count, ESR or CRP for the scenario you are assessing. Calculate the Disease Activity Score-28 (DAS28) for rheumatoid arthritis using tender joint count, swollen joint count, ESR or CRP, and patient global assessment. Use the das28 result to inform your calculation.

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Frequently Asked Questions