Correlations between initial pulmonary function and initial computed tomography score
| FEV1 r | FEV1/FVC r | MEF25 r | |
| Bronchiectasis | −0.41 (p<0.005) | −0.38 (p<0.01) | −0.52 (p<0.0005) |
| Thickness | −0.41 (p<0.005) | −0.41 (p<0.005) | −0.46 (p=0.001) |
| Large plugs | −0.40 (p<0.005) | −0.34 (p=0.02) | −0.40 (p<0.01) |
| Small plugs | −0.28 (p=0.05) | −0.21 (p=0.15) | −0.34 (p=0.02) |
| Combined plugging score | −0.36 (p=0.01) | −0.29 (p=0.04) | −0.39 (p<0.01) |
| Decreased attenuation (on inspiration) | −0.55 (p<0.00005) | −0.40 (p<0.005) | −0.56 (p<0.00005) |
FEV1: forced expiratory volume in one second
FVC: forced vital capacity
MEF25: midexpiratory flow at 25% of vital capacity
r: Spearman's correlation coefficient