Results of multivariate analysis with the segmental A/B ratio as a predictor
| Lung function | HRCT | R2 | Β (95% CI) | p Value |
|---|---|---|---|---|
| FEV1 | Segmental A/B ratio | 0.40 | −0.636 (−0.937 to −0.335) | <0.0001 |
| VC | Segmental A/B ratio | 0.42 | –0.561 (−0.855 to −0.267) | 0.0002 |
| Bands | −0.288 (−0.563 to −0.013) | 0.0397 | ||
| FEF25/75 | Segmental A/B ratio | 0.19 | −0.447 (−0.772 to −0.122) | 0.0070 |
| TLC | Bands | 0.11 | −0.336 (−0.670 to −0.001) | 0.0484 |
| RV | Segmental A/B ratio | 0.32 | 0.478 (0.168 to 0.788) | 0.0026 |
| GGO score | −0.344 (−0.645 to −0.043) | 0.0249 | ||
| RV:TLC | Segmental A/B ratio | 0.40 | 0.623 (0.312 to 0.934) | 0.0001 |
| Rrs(0) | Segmental A/B ratio | 0.32 | 0.431 (0.104 to 0.758) | 0.0098 |
| Reticular pattern | −0.497 (−0.827 to −0.167) | 0.0032 | ||
| Rrs(1) | Segmental A/B ratio | 0.33 | 0.554 (0.232 to 0.876) | 0.0008 |
| Reticular pattern | −0.316 (−0.620 to −0.012) | 0.0414 | ||
| SpO2 | Segmental A/B ratio | 0.22 | −0.466 (−0.789 to −0.143) | 0.0047 |
HRCT, high-resolution CT; GGO, ground glass opacification; RV:TLC, residual volume:total lung capacity ratio; VC, vital capacity.