Table 4.

Intraobserver reliability of UCOASMI, conventional metrology, BASDAI, and BASFI. Cells contain the intraclass correlation coefficient; column “All” contains 95% CI between parentheses.

Conventional metrology
  Lateral flexion0.980.970.930.96 (0.94–0.99)
  Tragus-to-wall distance0.080.960.920.30 (0.00–0.63)
  Cervical rotation0.990.880.920.93 (0.89–0.98)
  Schöber0.950.940.490.87 (0.78–0.96)
  Intermalleolar distance0.980.930.820.96 (0.93–0.99)
  BASMI0.910.940.850.91 (0.84–0.97)
UCOASMI0.960.990.970.98 (0.97–0.99)
BASDAINot applicable0.97 (0.95–0.99)
BASFINot applicable0.98 (0.97–0.99)
  • Variables in bold face should be compared at the same level of importance. UCOASMI: University of Córdoba Ankylosing Spondylitis Metrology Index; BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; BASFI: Bath Ankylosing Spondylitis Functional Index; BASMI: Bath Ankylosing Spondylitis Metrology Index.