Interpretation of the results from regression analysis useful for the prediction of joint damage in individual patients
| Variable assessed at baseline | Interpretation |
|---|---|
| Anti-CCP, antibodies against cyclic citrullinated peptide; anti-IL1α, antibodies against interleukin 1α; COMP, cartilage oligomeric matrix protein; CRP, C reactive protein; ESR, erythrocyte sedimentation rate; RF, rheumatoid factor. | |
| (A) Larsen score year 5 as dependent variable | |
| ESR | An increase of 1 mm/h in ESR corresponded to an average increase in Larsen score of 0.3 |
| IgA RF | With positive IgA RF the Larsen score was on average 19.1 units higher |
| Anti-IL1α | With positive anti-IL1α the Larsen score was on average 13.3 units lower |
| COMP | An increase of 1 unit corresponded to an average increase in Larsen score of 1.6 |
| Anti-CCP | With positive anti-CCP the Larsen score was on average 14.4 units higher |
| (B) Larsen score year 10 as dependent variable | |
| CRP | An increase of 1 mg/l corresponded to an average increase in Larsen score of 0.42 |
| Anti-CCP | With positive anti-CCP the Larsen score was on average 37 units higher |