Table III.

Correlations between clinical outcomes and QCT parameters

	Postbronchodilator FEV1 (% predicted), asthmatic patients	Postbronchodilator FEV1 (% predicted), patients with COPD	Postbronchodilator FEV1/FVC (%), asthmatic patients	Postbronchodilator FEV1/FVC (%), patients with COPD
Mean LA/BSA (mm2/m2)	0.324†	0.241*	0.218†	0.082
Mean TA/BSA (mm2/m2)	0.287†	0.238*	0.171*	0.084
Mean WA/BSA (mm2/m2)	0.247†	0.226*	0.126	0.083
Mean %WA	−0.417†	−0.248*	−0.343†	−0.121
MLDE/I	−0.303†	−0.697†	−0.402†	−0.729†
Perc15 (HU)	0.178*	0.434†	0.408†	0.554†
LAC-D−950	0.190*	0.180	0.234†	0.245*

FVC, Forced vital capacity.

Pearson correlation coefficient: *P < 0.05 and †P < .005.