Table 6.

Correlation matrix for change in clinical and SPARCC MRI spinal inflammation scores.

SPARCC MRI ScoreΔ BASDAIΔ BASFIChange in Δ ESRChange in Δ CRP
Δ 6 DVU*0.250.160.57 (p = 0.001)0.45 (p = 0.012)
Δ 6 DVU**0.140.070.43 (p = 0.02)0.34
Δ 23 DVU**0.170.140.44 (p = 0.017)0.31
  • * Mean of reader A and C scores.

  • ** Mean of reader B and C scores. SPARCC: Spondyloarthritis Research Consortium of Canada; MRI: magnetic resonance imaging; BASDAI: Bath Ankylosing Spondylitis Activity Index; BASFI: Bath Ankylosing Spondylitis Functional Index; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; DVU: discovertebral units.