Table 3 Multiple logistic regression analysis of the associations between baseline variables and erosion-free disease up to 8 years. The model includes rheumatoid factor. 70% of the study patients was included in the model. Nagelkerke pseudo-R2 was 0.15
From: Erosion-free rheumatoid arthritis: clinical and conceptional implications—a BARFOT study
B | Wald | Sig | Exp(B) | 95% C.I.for EXP(B) | ||
|---|---|---|---|---|---|---|
Lower | Upper | |||||
Rheumatoid factor | − .730 | 5.355 | .021 | .482 | .260 | .894 |
Number of ACR- criteria | − .409 | 3.630 | .057 | .664 | .436 | 1.012 |
Inclusion age | − .007 | .648 | .421 | .993 | .976 | 1.010 |
Disease duration, months | .052 | 1.545 | .214 | 1.053 | .971 | 1.143 |
Current smoking | − .057 | .040 | .841 | .945 | .543 | 1.645 |
DAS28 | − .292 | 1.963 | .161 | .747 | .497 | 1.123 |
SJC28 | − .024 | .743 | .389 | .976 | .923 | 1.031 |
TJC28 | .073 | 5.160 | .023 | 1.076 | 1.010 | 1.146 |
ESR | .003 | .143 | .705 | 1.003 | .987 | 1.020 |
Treatment start | .005 | .001 | .982 | 1.005 | .640 | 1.578 |
Constant | 2.267 | 3.949 | .047 | 9.652 | ||