Multiple stepwise regression analysis to study whether demographic and clinical outcome measures contribute in explaining disability, as assessed by the WHODAS II, five years later
| Variable | β Coefficient | 95% CI | p Value |
|---|---|---|---|
| Analyses were performed in the OASIS study group only (n=97). Adjusted R2=0.48. Variables not selected were patient global wellbeing, spinal pain, occiput to wall distance, finger to floor distance, Schober’s test, chest expansion, erythrocyte sedimentation rate, C reactive protein, Bath Ankylosing Spondylitis Radiology Index total, and disease activity by both patient and doctor. Adjustments were made for age, sex, and disease duration. For abbreviations see table 2. | |||
| Constant | 1.61 | −4.68 to 7.89 | 0.611 |
| BASDAI | 0.35 | 0.17 to 0.53 | 0.000 |
| BASFI | 0.23 | 0.09 to 0.38 | 0.002 |