Table 4.
Chest CT features of patients infected with different viral strains.
| Wild-type (n = 247) | Alpha (n = 13) | Beta (n = 18) | Delta (n = 35) | Omicron (n = 119) | P- value | |
|---|---|---|---|---|---|---|
| Involved lobes of pulmonary lesions at admission | <0.001 | |||||
| Uninvolved | 17(6.9) | 0 | 2(11.1) | 7(20.0) | 82(68.9) | |
| Involved 1 lung lobe | 16(6.5) | 2(15.4) | 4(22.2) | 11(31.4) | 6(5.0) | |
| Involved 2 lung lobes | 34(13.8) | 5(38.5) | 6(33.3) | 5(14.3) | 17(14.3) | |
| Involved ≥3 lobes | 180(72.9) | 6(46.2) | 6(33.3) | 12(34.3) | 14(11.8) | |
| Distribution of pulmonary lesions | <0.001 | |||||
| None | 17(6.9) | 0 | 2(11.1) | 7(20.0) | 82(68.9) | |
| Only subpleural distribution | 15(6.1) | 1(7.7) | 5(27.8) | 2(5.7) | 4(3.4) | |
| Only tracheal vascular bundle distribution | 3(1.2) | 3(23.1) | 5(27.8) | 16(45.7) | 29(24.4) | |
| Distribution of subpleural and tracheal vascular bundles | 212(85.8) | 9(69.2) | 6(33.3) | 10(28.6) | 4(3.4) | |
| Morphology of lesions | <0.001 | |||||
| None | 17(6.8) | 0 | 2(11.1) | 7(20.0) | 82(68.9) | |
| Ground-glass image | 33(13.4) | 3(23.1) | 4(22.2) | 3(8.6) | 5(4.2) | |
| Consolidation | 97(39.3) | 7(53.8) | 9(50.0) | 20(57.1) | 30(25.2) | |
| Ground-glass image with consolidation | 94(38.1) | 3(23.1) | 3(16.7) | 5(14.3) | 1(0.8) | |
| Pleural effusion with consolidation | 5(2.0) | 0 | 0 | 0 | 1(0.8) | |
| Ground-glass shadow with pleural effusion | 1(0.4) | 0 | 0 | 0 | 0 | |
All data are presented as n (%).