Table 3 CT imaging features in 457 patients at different stages after the onset of COVID-19

Ground-glass opacities (GGO)

88.66%

(352/397)

90.76%

(275/303)

91.41%

(149/163)

75.58%

(65/86)

65.31%

(32/49)

Meshwork

30.73%

(122/397)

13.53%

(41/303)

14.11%

(23/163)

6.98%

(6/86)

10.20%

(5/49)

Parenchymal bands

82.37%

(327/397)

94.72%

(287/303)

95.71%

(156/163)

97.67%

(84/86)

93.88%

(46/49)

Irregular interface

26.45%

(105/397)

25.41%

(77/303)

25.15%

(41/163)

22.09%

(19/86)

28.57%

(14/49)

Traction bronchiectasis

5.54%

(22/397)

14.52%

(44/303)

19.02%

(31/163)

16.28%

(14/86)

14.29%

(7/49)