FunctioningF testP values
BASFI thresholds<2.0 (n=633)2.0–3.9 (n=322)4.0–5.9 (n=258)≥6.0 (n=323)
ASAS HI3.7 (3.1)6.5 (3.1)8.6 (3.4)11.2 (3.1.6)438.0P<0.001
  • *All values given as mean (SD).

  • ASDAS, Ankylosing Spondylitis Disease Activity Score; BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; BASFI, Bath Ankylosing Spondylitis Functional Index.