Bath Ankylosing Spondylitis Functional Index (BASFI)
The BASFI measures functional limitations in patients with ankylosing spondylitis. This self-reported tool helps clinicians track how the condition affects daily activities.

Bath Ankylosing Spondylitis Functional Index (BASFI)
The Bath Ankylosing Spondylitis Functional Index (BASFI) is a self-reported survey assessing physical limitations in patients with ankylosing spondylitis. Using ten questions about daily activities, it helps doctors monitor functional ability and treatment success over time.
Category
Disease
Source
What is Bath Ankylosing Spondylitis Functional Index (BASFI)
The Bath Ankylosing Spondylitis Functional Index (BASFI) is a trusted standard for tracking physical function in patients with ankylosing spondylitis. This reliable index uses ten specific questions to measure how well a patient handles daily tasks and focuses on functional limitations caused by the condition. The first eight items look at specific activities like bending or reaching while the final two check the ability to cope with everyday life demands. Patients rate their ability on a simple visual analogue scale from zero to ten so it is easy to spot changes over time. Clinicians love that it takes less than five minutes to complete. It is widely used in clinical trials and routine practice to see if physiotherapy or medications are actually working. By tracking these scores, healthcare teams can adjust treatment plans to help patients stay active and mobile.
The Bath Ankylosing Spondylitis Functional Index can be scored using one main approach: calculating the mean score. Patients answer 10 questions about daily tasks like bending or reaching. They mark a 10 cm visual analogue scale or pick a number from 0 to 10, where 0 is easy and 10 is impossible. To get the final score, you simply add up all ten answers and divide by 10. This gives a result between 0 and 10. A higher number means the patient is having a harder time with physical function. It's a handy way for doctors to track how well someone is moving during treatment.
Advantages
Tracks patient condition changes systematically.
Measures treatment effectiveness through standardised tools.
Streamlines research data gathering process.
Meets international clinical assessment requirements.
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