Table 3.

Analysis of HRCT Scanning During Follow-up

Follow-up Number	Days From Onset of Illness, mean ± SD	Involved Zones, mean ± SD	GGOs	Consolidation	Interlobular Septal Thickening	Reticular Nodules Pattern
Initial (n = 20)	6.6 ± 2.8	5.1 ± 1.2	20 (100)	16 (80.0)	0	9 (45.0)
Visit 1 (n = 12)	24.4 ± 3.8	5.3 ± 1.4	12 (100)	4 (33.3)	9 (75.0)	6 (50.0)
Visit 2 (n = 9)	49.8 ± 6.3	4.6 ± 1.7	9 (100)	1 (11.1)	5 (55.6)	3 (33.3)
Visit 3 (n = 14)	93.9 ± 14.0	3.4 ± 2.2	12 (85.7)	0	3 (21.4)	2 (14.3)

Data are presented as No. (%) of patients, unless otherwise indicated. Of the 20 patients who had ≥ 1 follow-up visits, four made all three visits, one made visits one and two, four made visits one and three, and two made visits two and three. The other 9 patients made only one visit (visit one for three of them, visit two for two of them, and visit three for four of them). GGOs = ground-glass opacities; HRCT = high-resolution CT.