CDAI Rheumatoid Arthritis Activity

Calculate the Clinical Disease Activity Index (CDAI) for rheumatoid arthritis — a simple score requiring no laboratory tests, using TJC28, SJC28, evaluator global, and patient global assessments.

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 Clinical Disease Activity Index (CDAI) for rheumatoid arthritis — a simple score requiring no laboratory tests, using TJC28, SJC28, evaluator global, and patient global assessments

Each component has a specific meaning:

  • TJC28 — The tjc28 recorded for the scenario being assessed.
  • SJC28 — The sjc28 recorded for the scenario being assessed.
  • Evaluator global — The evaluator global recorded for the scenario being assessed.
  • Patient global assessments — The patient global assessments recorded for the scenario being assessed.

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

How to Use

Enter the TJC28, SJC28, evaluator global, patient global assessments for the scenario you are assessing. Calculate the Clinical Disease Activity Index (CDAI) for rheumatoid arthritis — a simple score requiring no laboratory tests, using TJC28, SJC28, evaluator global, and patient global assessments. Use the cdai result to inform your calculation.

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Frequently Asked Questions