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©2013 UpToDate ® Print Email Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) on an NRS 1. How would you describe the overall level of fatigue/tiredness you have experienced? none   |   0   |   1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   10   |   very severe 2. How would you describe the overall level of AS neck, back, or hip pain you have had? none   |   0   |   1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   10   |   very severe 3. How would you describe the overall level of pain/swelling you have had in joints other than neck, back, and hips? none   |   0   |   1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   10   |   very severe 4. How would you describe the level of discomfort you have had from an area tender to touch or pressure? none   |   0   |   1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   10   |   very severe 5. How would you describe the level of morning stiffness you have had from the time you wake up? none   |   0   |   1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   10   |   very severe 6. How long does your morning stiffness last from the time you wake up? 0 (0 hours)   |   1   |   2   |   3   |   4   |   5 (1 hour)   |   6   |   7   |   8   |   9   |   10 (2 or more hours) Calculation of BASDAI: Compute the mean of questions 5 and 6 Calculate the sum of the values of question 1-4 and add the result to the mean of questions 5 and 6 Divide the result by 5 Originally published in: Garrett S, Jenkinson T, Kennedy LG, et al. A new approach to defining disease status in ankylosing spondylitis: the Bath Ankylosing Spondylitis Disease Activity Index. J Rheumatol 1994; 21:2286. Reproduced with permission from: the Royal National Hospital for Rheumatic Diseases NHS Foundation Trust, Bath. www.rnhrd.nhs.uk . Copyright © 1994.