The Bath Ankylosing Spondylitis Functional Index (BASFI) is a ten-question tool that captures how much axial spondyloarthritis limits your everyday activities. It is often used alongside BASDAI, disease activity and function together. Complete it, save your result to track it over time, and print it to bring to your rheumatology appointment.
iAnswer each question based on how easy or hard each activity has been for you, over the last week. There are no right or wrong answers. This tool runs entirely in your browser: nothing you enter is saved to a server or sent anywhere. Saving a result stores it only in this browser, on this device.
Q1. Putting on socks or tights
Putting on your socks or tights without help or aids (such as a sock aid).
0
EasyImpossible
Q2. Bending to the floor
Bending forward from the waist to pick up a pen from the floor without an aid.
0
EasyImpossible
Q3. Reaching up high
Reaching up to a high shelf without help or aids (such as a helping hand).
0
EasyImpossible
Q4. Getting up from a chair
Getting up out of an armless dining room chair without using your hands or any other help.
0
EasyImpossible
Q5. Getting up from the floor
Getting up off the floor without help, from lying on your back.
0
EasyImpossible
Q6. Standing unsupported
Standing unsupported for 10 minutes without discomfort.
0
EasyImpossible
Q7. Climbing steps
Climbing 12 to 15 steps without using a handrail or a walking aid, one foot to each step.
0
EasyImpossible
Q8. Looking over your shoulder
Looking over your shoulder without turning your body.
0
EasyImpossible
Q9. Physically demanding activities
Doing physically demanding activities, such as physiotherapy exercises, gardening, or sports.
0
EasyImpossible
Q10. A full day's activities
Doing a full day's activities, whether at home or at work.
0
EasyImpossible
Your BASFI score
0.0
out of 10
0 · no limitation10 · maximal limitation
Move the sliders above to see your score.
About the scale. Unlike BASDAI, there is no single widely agreed cutoff score for BASFI. It is most useful tracked over time, alongside your BASDAI score and your rheumatology team's assessment, rather than read as a one-off number.
Your saved results
Dr. Dharini Mahendira Rheumatology · BASFI result ·
Question
Response
How the score is calculated
BASFI = the mean (average) of all 10 item scores, each rated 0 (easy) to 10 (impossible).
Calin A, Garrett S, Whitelock H, Kennedy LG, O'Hea J, Mallorie P, Jenkinson T. A new approach to defining functional ability in ankylosing spondylitis: the development of the Bath Ankylosing Spondylitis Functional Index. J Rheumatol. 1994;21(12):2281 to 2285.
