• 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".
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.
BASDAI Score: 0
*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.