Stepwise logistic regression analysis of predictive factors of persistent remission (DAS <1.6 at the three year and five year evaluations)
| Coefficient | SE | OR (95% CI) | p Value | |
|---|---|---|---|---|
| *Initial Sharp score was entered as categorical variable (0, low, 1, high). | ||||
| CI, confidence interval; DAS, disease activity score; HAQ, health assessment questionnaire; OR, odds ratio. | ||||
| With DAS | ||||
| Constant | −0.88 | 0.5 | ||
| DAS <4 | 1.7 | 0.6 | 5.5 (1.7–17.8) | <0.0001 |
| Initial Sharp score <4* | 1.07 | 0.5 | 2.7 (0.9–8.1) | 0.02 |
| C reactive protein <14.5 mg/l | 0.9 | 0.5 | 2.5 (0.8–7.4) | 0.09 |
| Without DAS | ||||
| Constant | −1.03 | 0.5 | ||
| C reactive protein <14.5 mg/l | 1.14 | 0.5 | 3.1 (1.0–9.0) | 0.004 |
| Ritchie score <17 | 1.4 | 0.6 | 4.2 (1.4–12.8) | 0.012 |
| Initial Sharp score <4* | 1.01 | 0.5 | 2.7 (0.9–8.0) | 0.05 |