Two years radiological SIJ changes in 449 SpA patients with early disease
| Structural changes | Baseline mNY radiological status* | ||
|---|---|---|---|
| negative (n=326) | positive (n=123) | All (n=449) | |
| mNY negative → positive | 16 (4.9%) | N.A. | N.A. |
| mNY positive → negative | N.A. | 7 (5.7%) | N.A. |
| SIJ score 0-8 | 0.2±0.7 | 0.0±0.8 | 0.1±0.8 |
| Changes ≥1 grade | |||
| worsening | 20 (6.3%) | 20 (19.3%) | 50 (11.1%) |
| improvement | 12 (3.7%) | 14 (12.8%) | 26 (5.8%) |
| Changes ≥1 grade AND 2 year value ≥2 | 21 (6.4%) | 18 (17.1%) | 39 (8.7%) |
↵* mNY positive = at least grade 3 unilateral or grade 2 bilateral. N.A. = not applicable.