Multiple regression analysis with Simplified Erosion Narrowing Score as dependent variable.
| Coefficients | ||||
|---|---|---|---|---|
| Variables | Beta | p | 95% CI | Part Correlation |
| IgM-RF | 0.236 | 0.006 | 0.018 to 0.104 | 0.276 |
| BMI | −0.448 | < 0.0005 | −1.455 to −0.677 | −0.483 |
| DAS28 | 0.299 | 0.001 | 1.531 to 5.329 | 0.342 |
DAS28: Disease Activity Score 28-joint count; BMI: body mass index; RF: rheumatoid factor.