Table 2. Quantitative analysis of four findings of IPF on HRCT.

Characteristics	Value
Total lesion volume (mL)	522.42 (251.32 to 836.55)
Total lesion ratio (%)	12.85 (6.24 to 22.53)
HC (mL)	0 (0 to 103.80)
HC (%)	0 (0 to 3.52)
RE (mL)	286.78 (126.36 to 595.97)
RE (%)	8.30 (3.37 to 15.26)
TRBR (mL)	1.55 (0.45 to 9.96)
TRBR (%)	0.04 (0.01 to 0.25)
GGO (mL)	0 (0 to 0)
GGO (%)	0 (0 to 0)
Right upper lung lesion (%)	4.65 (0.77 to 15.47)
Right middle lung lesion (%)	7.05 (3.33 to 17.03)
Right lower lung lesion (%)	27.50 (14.44 to 51.00)
Left upper lung lesion (%)	2.82 (0.50 to 8.21)
Left middle lunge lesion (%)	10.31 (2.96 to 18.48)
Left lower lung lesion (%)	28.61 (9.65 to 53.93)

All values are presented as median and interquartile range (IQR). IPF, idiopathic pulmonary fibrosis; HRCT, high-resolution computed tomography; TRBR, traction bronchiectasis; RE, reticular pattern; HC, honeycombing; GGO, ground glass opacity.