Baseline variable | OR (95% CI) |
---|---|
Age | 1.03 (1.00–1.05) |
Female gender | 1.12 (0.53–2.35) |
RA duration | 1.03 (1.01–1.05) |
RF+ | 0.20 (0.11–0.36) |
C statistics (95% CI) | 0.74 (0.67–0.81) |
OR, odds ratio; CI, confidence interval; RA, rheumatoid arthritis; RF, rheumatoid factor.