Table 7 Bath Ankylosing Spondylitis Metrology Index (BASMI) 3-point answer scale21
Lateral lumbar flexion (cm)>10 cm5–10 cm<5 cm
Tragus to wall distance (cm)<15 cm15–30 cm>30 cm
Lumbar flexion (modified Schober) (cm)>4 cm2–4 cm<2 cm
Maximal intermalleolar distance (cm)>100 cm70–100 cm<70 cm
Cervical rotation (°)>70°20–70°<20°
  • The sum of the five assessments gives the BASMI 3 result.Reproduced with permission from J Rheumatol.