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Table 2 Proportion of vertebral edges showing development of new syndesmophytes at 2-year follow-up according to baseline status of inflammation as assessed by both magnetic resonance imaging sequences

From: The relationship between inflammation and new bone formation in patients with ankylosing spondylitis

MRI sequence Inflammation status Proportion (number) of vertebral edges with development of new syndesmophytes after 2 years  
STIR Inflammation at baseline 6.5% (10/153) P = 0.006,
OR 3.3,
95% CI 1.5 to 7.4
  No inflammation at baseline 2.1% (16/769)  
T1-post-Gd Inflammation at baseline 6.3% (6/95) P = 0.043,
OR 2.7,
95% CI 1.1 to 7.0
  No inflammation at baseline 2.4% (20/827)  
  1. CI, confidence interval; MRI, magnetic resonance imaging; OR, odds ratio; STIR, short-tau-inversion-recovery; T1-post-Gd, T1-post-gadolinium.