Table 4.
Variables | Odds ratio (with 95% CI) | P-value | Model variance | Model predictions |
---|---|---|---|---|
Age (years) | 1.01 (0.97–1.06) | 0.52 | Nagelkerke R2 = 0.316 | Correct classification by model = 67.3% |
Disease duration (years) | 1.30 (1.01–1.69) | <0.05 | ||
DAS | 1.94 (1.35–2.79) | <0.01 |
CI: confidence interval; DAS: disease activity score; RA: rheumatoid arthritis.