ASDAS-CRP (Ankylosing Spondylitis Disease Activity Score) Calculator

Calculates ASDAS-CRP for axial spondyloarthritis using back pain (Q2+Q3), peripheral joint pain, enthesitis, morning stiffness, and CRP to assess disease activity state and treatment response.

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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 ASDAS-CRP for axial spondyloarthritis using back pain (Q2+Q3), peripheral joint pain, enthesitis, morning stiffness, and CRP to assess disease activity state and treatment response

Each component has a specific meaning:

  • Back pain — The back pain recorded for the scenario being assessed.
  • Peripheral joint pain — The peripheral joint pain recorded for the scenario being assessed.
  • Enthesitis — The enthesitis recorded for the scenario being assessed.
  • Morning stiffness — The morning stiffness recorded for the scenario being assessed.
  • CRP — The crp recorded for the scenario being assessed.

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

How to Use

Enter the back pain, peripheral joint pain, enthesitis, morning stiffness, CRP for the scenario you are assessing. Calculates ASDAS-CRP for axial spondyloarthritis using back pain (Q2+Q3), peripheral joint pain, enthesitis, morning stiffness, and CRP to assess disease activity state and treatment response. Use the asdas-crp result to inform your calculation.

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