Bath Ankylosing Spondylitis Functional Index (BASFI)

The Bath Ankylosing Spondylitis Functional Index (BASFI) is a tool used by healthcare professionals to assess how ankylosing spondylitis—a type of inflammatory arthritis—affects a person's daily function and quality of life. It consists of a questionnaire that asks about difficulties in performing everyday tasks due to stiffness and pain. Patients rate their experiences on a scale, helping doctors understand the severity of their condition and track changes over time. The BASFI is essential for tailoring treatment plans and improving patient care.