Table 4.

Pearson correlations coefficients (r)* between extra-parenchymal bronchi and intra-parenchymal segmental airways in never-smoker subjects

	Left Main Bronchus	Right Lung Segmental Airways	Left Lung Segmental Airways	All Segmental Airways
Wall Volume
Right Main Bronchus	0.67	0.51	0.53	0.60
Left Main Bronchus	-	0.55	0.61	0.67
Lumen Volume
Right Main Bronchus	0.84	0.58	0.64	0.68
Left Main Bronchus	-	0.59	0.66	0.70

*P < 0.0001 for all correlations.