DAS28-CRP Disease Activity Score (Rheumatoid Arthritis)

Calculate the DAS28-CRP composite disease activity score for rheumatoid arthritis using tender/swollen joint counts, CRP, and patient global assessment to guide treat-to-target therapy.

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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 DAS28-CRP composite disease activity score for rheumatoid arthritis using tender/swollen joint counts, CRP, and patient global assessment to guide treat-to-target therapy

Each component has a specific meaning:

  • Tender/swollen joint counts — The tender/swollen joint counts recorded for the scenario being assessed.
  • CRP — The crp recorded for the scenario being assessed.

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

How to Use

Enter the tender/swollen joint counts, CRP for the scenario you are assessing. Calculate the DAS28-CRP composite disease activity score for rheumatoid arthritis using tender/swollen joint counts, CRP, and patient global assessment to guide treat-to-target therapy. Use the das28-crp ra result to inform your calculation.

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Frequently Asked Questions