Independent contribution of narrowing and erosion scores within each joint group in relation to physical functioning measured by the Health Assessment Questionnaire.
| Predictor† | Beta | SE | 95% CI |
|---|---|---|---|
| Narrowing feet | −0.003 | 0.005 | −0.013 to 0.008 |
| Narrowing wrists | −0.001 | 0.004 | −0.009 to 0.007 |
| Narrowing MCPs | 0.008 | 0.010 | −0.013 to 0.028 |
| Narrowing PIPs | 0.016 | 0.017 | −0.017 to 0.050 |
| Erosions feet | −0.003 | 0.005 | −0.012 to 0.006 |
| Erosions wrists | 0.017 | 0.007 | 0.003 to 0.030* |
| Erosions MCPs | −0.002 | 0.014 | −0.030 to 0.027 |
| Erosions PIPs | −0.016 | 0.015 | −0.044 to 0.013 |
*p<0.05.
†Adjusted for BMI, DAS, DAS baseline, year, gender and treatment group.
CI, confidence interval; MCPs, metacarpophalangeal joints; PIPs, proximal interphalangeal joints; SE, standard error.