Table 2 Comparison of various chest CT manifestations in COVID-19 and CAP patients
COVID-19 n = 165 n (%) | CAP n = 118 n (%) | χ2 | P value | |
|---|---|---|---|---|
Pathological morphology and density | ||||
Round ground glass shadow | 53(32.1%) | 2(1.7%) | 40.68 | < 0.001 |
Small ground glass shadow | 35(21.2%) | 27(22.9%) | 0.11 | 0.74 |
Large ground glass shadow | 23(13.9) | 13(11.0%) | 0.53 | 0.47 |
Large and small mixed ground glass shadow | 18(10.9%) | 5(4.2%) | 4.1 | 0.04 |
Ground glass shadow and solid shadow | 11(6.7%) | 7(5.9%) | 0.20 | 0.66 |
Small patch consolidation | 12(7.3%) | 31(26.3%) | 19.27 | < 0.001 |
Large and small mixed patch consolidation | 13(7.9%) | 33(28.0%) | 0.40 | 0.53 |
Other imaging signs | ||||
Lesion wandering | 22(13.3%) | 3(2.5%) | 9.05 | 0.002 |
Fibrous tissue | 5(3.03%) | 68(57.6%) | 107.14 | < 0.001 |
Air bronchgram | 52(3.2%) | 46(39.0%) | 1.69 | 0.19 |
Bronchial wall thickening | 18(10.9%) | 37(31.4%) | 18.37 | < 0.001 |
Crazy paying pattern | 54(32.7%) | 34(28.8%) | 0.49 | 0.48 |
Pulmonary cavity | 0 | 12(10.2%) | 17.52 | < 0.001 |
Lung bullae | 0 | 8(6.8%) | 11.51 | < 0.001 |
Distribution | ||||
Central | 17(10.3%) | 22(18.6%) | 4.03 | 0.04 |
Peripheral | 99(60.0%) | 62(52.5%) | 1.56 | 0.21 |
Central + Peripheral | 49(29.7%) | 34(28.8%) | 0.03 | 0.87 |
Numbers of lobes and lesions involved | ||||
Single leaf single shot | 48(29.1%) | 17(14.4%) | 8.38 | 0.03 |
Single leaf multiple occurrence | 12(7.3%) | 9(7.6%) | 0.01 | 0.91 |
Multilobed multiple lesions | 105(63.6%) | 92(78.0%) | 6.68 | 0.01 |
Other chest diseases | ||||
Enlargement of heart shadow | 1(0.6%) | 5(4.2%) | 4.37 | 0.04 |
Lymphadenopathy | 1(0.6%) | 18(15.3%) | 23.57 | < 0.001 |
Pleural effusion | 3(1.8%) | 26(22.0%) | 30.57 | < 0.001 |
Pleural thickening | 2(1.2%) | 31(26.3%) | 41.94 | < 0.001 |