DAPSA (Disease Activity in Psoriatic Arthritis) Calculator

Calculates DAPSA for psoriatic arthritis using tender joint count, swollen joint count, patient pain VAS, patient global VAS, and CRP, with remission threshold for biologic tapering decisions.

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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

Calculates DAPSA for psoriatic arthritis using tender joint count, swollen joint count, patient pain VAS, patient global VAS, and CRP, with remission threshold for biologic tapering decisions

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.
  • Patient pain VAS — The patient pain vas recorded for the scenario being assessed.
  • Patient global VAS — The patient global vas recorded for the scenario being assessed.
  • CRP — The crp recorded for the scenario being assessed.

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

How to Use

Enter the tender joint count, swollen joint count, patient pain VAS, patient global VAS, CRP for the scenario you are assessing. Calculates DAPSA for psoriatic arthritis using tender joint count, swollen joint count, patient pain VAS, patient global VAS, and CRP, with remission threshold for biologic tapering decisions. Use the dapsa score result to inform your calculation.

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