Stepwise logistic regression to determine which variables best predicted severe articular damage in RA (adjusted for age, sex, and disease duration)
| OR | 95% CI for OR | |
|---|---|---|
| Cutaneous nodules | 14.98 | 1.74, 128 |
| RF | 0.86 | 0.176, 4.19 |
| ANA | 0.36 | 0.07, 1.88 |
| APF | 0.66 | 0.14, 3.04 |
| AKA | 3.11 | 0.58, 16.8 |
| RA-33ab | 0.76 | 0.16, 3.70 |
| HLA DRB1*04/DRB1*01 | 7.63 | 1.32, 42.9 |
| ESR | 2.66 | 0.60, 11.9 |
| CRP | 7.4 | 1.43, 38.1 |