Differences in Clinical and Imaging Features between Asymptomatic and Symptomatic COVID-19 Patients

Table 5

Imaging features of asymptomatic carriers and COVID-19 patients at the early improvement stage.

CT features	Early improvement stage
	Asymptomatic (n = 19)	COVID-19 (n = 27)
Prevalent lesion distribution within lobes
Peripheral area	8 (42.11)	4 (14.81)	4.31	0.04
Central area	0	0	—	—
Both the peripheral and central area	11 (57.89)	23 (85.19)	4.31	0.04
Density and interior features
Ground glass opacity	2 (10.53)	0	2.97	0.17
Consolidation	2 (10.53)	1 (3.70)	0.85	0.56
Both ground-glass opacity and consolidation	15 (78.95)	26 (96.30)	3.47	0.14
Intralobular septal thickening	8 (42.11)	12 (44.44)	0.02	0.88
Interlobular septal thickening	4 (21.05)	11 (40.74)	1.97	0.16
Other features
Pleural effusion	0	0	—	—
Enlarged mediastinal lymph nodes	0	0	—	—