Table 1. CT Findings in Patients with Asbestosis and IPF in Korea.

CT Finding	Asbestosis (n = 200)	IPF (n = 11)	P
Subpleural dot-like or branching opacities	195 (97.5%)	0	< 0.001
Parenchymal bands	101 (50.5%)	0	0.012
Parenchymal changes adjacent to pleural plaques	79 (39.5%)	0	< 0.05
Pleural plaques	197 (98.5%)	0	< 0.001
Subpleural curvilinear lines	34 (17.0%)	0
Intralobular interstitial thickening	190 (95.0%)	11 (100%)
Interlobular septal thickening	185 (92.5%)	11 (100%)
Honeycomb cysts	35 (17.5%)	9 (81.8%)	0.009
Ground-glass opacity	31 (15.5%)	11 (100%)	< 0.001
Traction bronchiectasis	87 (43.5%)	11 (100%)	0.004

IPF = idiopathic pulmonary fibrosis