Results of the multivariate analysis with CSA <5 mm% as a predictor
| Lung function | HRCT | R2 | Β (95% CI) | p Value |
|---|---|---|---|---|
| FEV1 | CSA<5 mm% | 0.52 | −0.666 (−0.948 to −0.384) | <0.0001 |
| Curvilinear bands | −0.213 (−0.458 to 0.032) | 0.0885 | ||
| VC | CSA<5 mm% | 0.51 | −0.721 (−1.006 to −0.436) | <0.0001 0.0209 |
| FEF25/75 | CSA<5 mm% | 0.26 | −0.508 (−0.826 to −0.190) | 0.0018 |
| TLC | Bands | 0.11 | −0.336 (−0.670 to −0.002) | 0.0484 |
| RV | CSA<5 mm% | 0.36 | 0.518 (0.213 to 0.823) | 0.0009 |
| RV:TLC | CSA<5 mm% | 0.61 | 0.763 (0.468 to 1.058) | <0.0001 |
| Rrs(0) | CSA<5 mm% | 0.34 | 0.422 (0.122 to 0.722) | 0.0058 |
| Reticular pattern | −0.516 (−0.836 to −0.196) | 0.0016 | ||
| Rrs(1) | CSA<5 mm% | 0.58 | 0.748 (0.458 to 1.038) | <0.0001 |
| Reticular pattern | −0.516 (−0.964 to −0.068) | 0.0237 | ||
| SpO2 | CSA<5 mm% | 0.36 | −0.593 (−0.913 to −0.273) | 0.0003 |
HRCT, high-resolution CT; RV:TLC, residual volume:total lung capacity ratio; VC, vital capacity.