Table 2. Particular Characteristics on CT Imaging of All 32 Patients.
| Characteristic | Initial CT (n = 32) | P1 | Worst-State CT (n = 32) | P2 | Latest Follow-Up CT (n = 32) |
|---|---|---|---|---|---|
| Number of affected segments | 7.0 (1.3–11.8) | 0.017 | 11.0 (4.5–14.0) | 0.001 | 3.5 (0.0–10.5) |
| Location* | |||||
| Upper lobe | 19 (59.4) | 24 (75.0) | 14 (43.8) | ||
| Middle lobe or lingula | 16 (50.0) | 19 (59.4) | 13 (40.6) | ||
| Lower lobe | 29 (90.6) | 31 (96.9) | 17 (53.1) | ||
| Bilateral lobes | 23 (71.9) | 28 (87.5) | 17 (53.1) | ||
| Distribution | 0.302 | 0.584 | |||
| Central | 0 (0) | 0 (0) | 0 (0) | ||
| Peripheral | 14 (43.8) | 10 (31.3) | 7 (21.9) | ||
| Both central and peripheral† | 18 (56.3) | 22 (68.8) | 11 (34.4) | ||
| Opacification | 0.019 | 0.105 | |||
| Pure GGO | 19 (59.4) | 9 (28.1) | 4 (22.2) | ||
| GGO with consolidation | 9 (28.1) | 20 (62.5) | 8 (44.4) | ||
| Pure consolidation | 4 (12.5) | 3 (9.4) | 6 (33.4) | ||
| Interstitial thickening | 16 (50.0) | 0.616 | 18 (56.3) | < 0.001 | 4 (12.5) |
| Bronchiectasis | 0 (0) | 0.472 | 2 (6.3) | 0.554 | 1 (3.1) |
| Mosaic attenuation | 0 (0) | - | 0 (0) | - | 0 (0) |
| Crazy paving | 11 (34.4) | 0.794 | 12 (37.5) | 0.001 | 0 (0) |
| Air bronchogram | 8 (25.0) | 0.777 | 9 (28.1) | 0.02 | 2 (6.3) |
| Irregular interface | 11 (34.4) | 0.045 | 19 (59.4) | 0.134 | 13 (40.6) |
| Coarse reticular pattern | 1 (3.1) | 0.352 | 4 (12.5) | 0.668 | 2 (6.3) |
| Parenchymal band | 9 (28.1) | < 0.001 | 23 (71.9) | 0.023 | 14 (43.8) |
| Lymphadenopathy | 3 (9.4) | - | 3 (9.4) | 0.606 | 1(3.1) |
| Pleural effusion | 2 (6.3) | 0.150 | 7 (21.9) | 0.016 | 0 (0) |
Data are median (interquartile range) or n (%). P1: positive patients in worst-state CT period compared to that in initial CT period, P2: positive patients in worst-state CT period compared to that in latest follow-up CT period. *Each patient may have multiple lung lobes affected, †Lesions located both central and peripheral in patient. GGO = ground-glass opacity