Table 3– Mean volumetric measurements and changes for computed tomography findings at time-points 1 and 2

Finding	Time-point 1	Time-point 2	Difference±sd
Total normal L	2.5±1.0	2.2±1.1	-0.3±0.6
Total emphysema L	0.02±0.04	0.01±0.03	-0.002±0.03
Total emphysema %	0.4±1.2	0.4±1.0	0.0±0.9
Total GGO L	0.3±0.3	0.4±0.4	0.08±0.3
Total GGO^# %	10.2±10.6	13.3±12.8	3.2±9.8
Total reticular L	0.5±0.3	0.6±0.4	0.06±0.2
Total reticular^# %	15.1±9.9	18.1±12.4	3.0±6.4
Total honeycombing L	0.2±0.3	0.2±0.3	-0.01±0.2
Total honeycombing^# %	6.0±6.9	6.0±8.8	-0.1±6.3
Total ILD L	1.1±0.6	1.2±0.6	0.1±0.4
Total ILD^# %	31.3±16.8	37.4±22.1	6.1±13.0
Total lung volume L	3.6±0.8	3.5±0.9	-0.2±0.4

Data are presented as mean±sd, unless otherwise stated. GGO: ground-glass opacities; ILD: interstitial lung disease (ground glass + reticular + honeycombing). ^#: % of total lung volume.