BASDAI (Bath Ankylosing Spondylitis Disease Activity Index) Calculator

• Move each slider to the number that best reflects your condition over the past week.
• Please answer all questions for an accurate score.
• Your BASDAI score will appear in red when you click "Calculate".

1. How would you describe the overall level of fatigue/tiredness you have experienced?

0

01234 5678910

2. How would you describe the overall level of AS neck, back or hip pain you have had?

0

01234 5678910

3. How would you describe the overall level of pain/swelling in joints other than neck, back or hips you have had?

0

01234 5678910

4. How would you describe the overall level of discomfort you have had from any areas tender to touch or pressure?

0

01234 5678910

5. How would you describe the overall level of morning stiffness you have had from the time you wake up?

0

01234 5678910

6. How long did your morning stiffness last from the time you wake up?

0

01234 5678910

Each number reflects the time your morning stiffness lasts: 0 means no stiffness, 2 = 30 minutes, 4 = 45 minutes, 5 = 1 hour, and 10 = 2 hours or more.

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*This online calculator format and translation was developed by Dr Ahmed Omar.

BASDAI tool reference:
Garrett S, Jenkinson T, Kennedy LG, Whitelock H, Gaisford P, Calin A. A new approach to defining disease status in ankylosing spondylitis: the Bath Ankylosing Spondylitis Disease Activity Index. J Rheumatol. 1994;21(12):2286‑91.