Table 3. Multiple regression analyses predicting residual ultrasound activity in rheumatoid arthritis patients in clinical remission.
| Model | β | OR | 95% Confidence Interval | p | ||
|---|---|---|---|---|---|---|
| Lower Bound | Upper Bound | |||||
| Calprotectin | 1,16 | 3,189 | 1,31 | 7,764 | 0,011* | |
| Age | 0,078 | 1,081 | 1,018 | 1,148 | 0,011* | |
| Disease duration | -0,002 | 0,998 | 0,986 | 1,01 | 0,711 | |
| Sex | -1,428 | 0,24 | 0,044 | 1,319 | 0,101 | |
| Glucocorticoids, yes or no | -0,313 | 0,731 | 0,141 | 3,801 | 0,71 | |
| Methotrexate, yes or no | -1,484 | 0,227 | 0,033 | 1,54 | 0,129 | |
| RF positivity | 0,165 | 1,18 | 0,244 | 5,713 | 0,837 | |
| ACPA positivity | 0,558 | 1,747 | 0,369 | 8,269 | 0,482 | |
| Constant | -4,431 | 0,012 | 0,025 | |||
Dependent Variables: US residual activity
* Correlation is significant at the p<0.05 level
Abbreviations: RF, rheumatoid factor; ACPA, anti-citrullinated protein antibody