ASDAS-ESR Calculator
Ankylosing Spondylitis Disease Activity Score with ESR
Patient Assessment
Patient-reported level of AS neck, back, or hip pain (0-10 scale)
Patient-reported severity upon waking (0-10 scale)
Patient's perception of disease activity over the past week (0-10 scale)
Patient-reported pain/swelling in joints excluding neck, back, or hips (0-10 scale)
mm/h
Laboratory value in millimeters per hour
Formula
ASDAS-ESR =
(0.08 × Back Pain)
+ (0.07 × Morning Stiffness Duration)
+ (0.11 × Patient Global Assessment)
+ (0.09 × Peripheral Pain/Swelling)
+ (0.29 × √ESR)
Variables:
- Back Pain:Patient-reported (0-10 scale)
- Morning Stiffness:Duration severity (0-10 scale)
- Patient Global:Disease activity perception (0-10 scale)
- Peripheral Pain:Joints excluding spine (0-10 scale)
- ESR:Erythrocyte sedimentation rate (mm/h)
Result
Enter all values to calculate the ASDAS-ESR score
About
The ASDAS-ESR calculator helps clinicians track ankylosing spondylitis severity over time and guide treatment decisions.
Clinical Use
- Monitor disease progression
- Assess treatment effectiveness
- Guide therapeutic decisions
- Track patient outcomes
Important Notes
- Most variables rely on patient reporting
- ESR is the sole objective measurement
- ASDAS-CRP is preferred when available
- This ESR variant is an acceptable alternative
Disclaimer: This calculator is for educational and clinical reference purposes. Always consult with qualified healthcare professionals for medical decisions.