From: Multiple biomarkers predict disease severity, progression and mortality in COPD
 | COPDGene | ECLIPSE | ||||
---|---|---|---|---|---|---|
Biomarker(s) | β | R2 | AIC | β | R2 | AIC |
None | Â | 0.56 | 1568 | Â | 0.31 | 3062 |
CC16 | −0.91 | 0.01 | 1565* | 0.06 | 0.02 | 2874 |
SP-D | 0.96 | 0.02 | 1565* | 0.79 | 0.03 | 2868* |
sRAGE | 0.43 | 0.00 | 1555 | 0.45 | −0.03 | 1754 |
CRP | 0.21 | 0.00 | 1569 | 0.36 | 0.01 | 2900* |
Fibrinogen | −0.59 | 0.00 | 1528 | 1.61 | 0.02 | 2502* |
CRP, Fibrinogen, SP-D | Â | 0.04 | 1523* | Â | 0.06 | 2249*a |
CC16, CRP, Fibrinogen, SP-D, sRAGE |  | 0.04 | 1509*a |  | −0.02 | 1276 |