Table 3.
The Relationship Between Lung function and Serum Protein Biomarkers at baseline
| Baseline SPD* | Baseline CC16* | Baseline CRP* | |||||||
| β | R | P value | β | R | P value | β | R | P value | |
| Baseline FEV1 | -0.204 | 0.42 | 0.045 | -0.057 | 0.09 | 0.675 | 0.031 | 0.13 | 0.549 |
| Baseline SPD* | -- | -- | -0.293 | 0.23 | 0.295 | 0.080 | 0.17 | 0.446 | |
| Baseline CC16* | -- | -- | -- | -- | -0.059 | 0.16 | 0.473 | ||
* Logarithmic scale.
A negative β-coefficient indicates an inverse relationship; whereas a positive β-coefficient indicates a positive linear relationship between the two variables.
Abbreviations : CC16 – Clara cell protein-16, CRP – C-reactive protein, FEV1 – forced expiratory volume in one second, SPD – surfactant protein D.