Table 2.

HRCT findings in German and Japanese patients with idiopathic pulmonary fibrosis.

HRCT-Findings	German Patients	Japanese Patients	p Value
GGO (%)	2.92 ± 4.11	3.85 ± 5.12	0.015
Fibrosis (%)	16.60 ± 7.99	12.80 ± 6.68	<0.01
Emphysema (%)	1.72 ± 3.63	4.02 ± 8.62	0.010
Zones with traction bronchiectasis (n)	5.19 ± 1.13	4.27 ± 1.61	<0.01

Statistical significance was tested by the Mann–Whitney U-test. HRCT, high-resolution computed tomography: IPF, idiopathic pulmonary fibrosis: GGO, ground glass opacity.