Table 3.
CT characteristics of enrolled patients categorized by onset time
| Immediate onset (N = 48) | Late onset (N = 61) | P | Total (N = 296) | |
|---|---|---|---|---|
| CT scores | 5.0(2.0–9.0) | 7.0(3.0–11.0) | 0.198 | 6.0(2.0–11.0) |
| Number of lobes involved | 0.637 | |||
| 0 | 5(10.4%) | 4(6.6%) | 25(8.4%) | |
| 1 lobe | 7(14.6%) | 6(9.8%) | 31(10.5%) | |
| 2 lobes | 8(16.7%) | 8(13.1%) | 46(15.5%) | |
| 3 lobes | 9(18.8%) | 9(14.8%) | 50(16.9%) | |
| 4 lobes | 7(14.6%) | 16(26.2%) | 44(14.9%) | |
| 5 lobes | 12(25.0%) | 18(29.5%) | 84(28.4%) | |
| Bilateral Involvement | 39(81.3%) | 54(88.5%) | 0.287 | 236(79.7%) |
| Opacity distribution | 0.461 | |||
| Peripheral | 34(70.8%) | 47(77.0%) | 203 (68.6%) | |
| Central | 14(29.2%) | 14(23.0%) | 93(31.4%) | |
| Opacity patterns | ||||
| Pure GGO | 19(39.6%) | 43(70.5%) | 0.001 | 203(68.6%) |
| Consolidation | 33(68.8%) | 51(83.6%) | 0.067 | 210(70.9%) |
| “Crazy-Paving” Pattern | 17(35.4%) | 17(27.9%) | 0.398 | 101(34.1%) |
| Nodules | 0 | 0 | NA | 1(0.3%) |
| Linear opacities | 19(39.6%) | 29(47.5%) | 0.406 | 139(47.0%) |
| Lung cavitation | 3(6.3%) | 0 | 0.048 | 10(3.4%) |
| Other findings | ||||
| Lymphadenopathy | 0 | 0 | NA | 0 |
| Pleural effusion | 0 | 0 | NA | 0 |
| Emphysema | 2(4.2%) | 0 | 0.108 | 2(0.7%) |
| Fibrosis | 5(10.4%) | 8(13.1%) | 0.666 | 39(13.2%) |