Baseline n (%) (n=145) |
2 years n (%) (n=129) |
5 years n (%) (n=145) |
Positive change over 5 years n (%) |
Negative change over 5 years n (%) |
Net change n (%) |
|
Structural lesions (cut-offs) | ||||||
≥3 erosions¶ | 0 (0.0) | 0 (0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
≥3 bone spurs¶ | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
≥3 fatty lesions¶ | 1 (0.7) | 2 (1.6) | 2 (1.4) | 1 (0.7) | 0 (0.0) | 1 (0.7) |
≥5 fatty lesions¶ | 2 (1.4) | 1 (0.8) | 1 (0.7) | 0 (0.0) | 1 (0.7) | −1 (−0.7) |
≥5 fatty lesions and/or erosions¶ | 2 (1.4) | 1 (0.8) | 1 (0.7) | 0 (0.0) | 1 (0.7) | −1 (−0.7) |
*Paired samples t-test comparing baseline versus 5 years.
†Mean of three readers.
‡Missing data from at least one time point and one reader for four cases.
§Fatty lesions, erosions, bone spurs and ankylosis.
¶Agreement of ≥2 out of 3 readers.
ASAS, Assessment of Spondyloarthritis International Society; BME, bone marrow oedema; SPARCC, Spondyloarthritis Research Consortium of Canada.