Linear regression analysis* on 2-year progression scores of the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS)
| Variable | Regression coefficient | p Value | Standardised β | |
|---|---|---|---|---|
| Model 1 | ESR group (high) | 0.42 (0.14–0.69) | 0.004 | |
| Model 2 | ESR group (high) | 0.42 (0.15–0.69) | 0.002 | 0.25 |
| Treatment (continuous) | −0.43 (−0.70– –0.16) | 0.002 | −0.25 | |
| Model 3 | ESR group (high)X treatment (continuous) | −0.26 (−0.65–0.13) | 0.186 |
The analysis was performed using van der Waerden-normalised 2-year mSASSS change scores.
ESR, erythrocyte sedimentation rate.