Table 4. Comparison of Particular Characteristics between Groups on Worst-State CT Imaging.
| Characteristic | Initial CT | Worst-State CT | ||||
|---|---|---|---|---|---|---|
| Fibrosis Group (n = 14) | Non-Fibrosis Group (n = 18) | P | Fibrosis Group (n = 14) | Non-Fibrosis Group (n = 18) | P | |
| Number of affected segments | 11.0 (4.0–13.0) | 3.5 (1.0–10.0) | 0.040 | 14.0 (11.8–18.0) | 6.5 (3.0–11.3) | < 0.001 |
| Location* | ||||||
| Upper lobe | 11 (78.6) | 8 (44.4) | 14 (100) | 10 (55.6) | ||
| Middle lobe or lingula | 11 (78.6) | 5 (27.8) | 14 (100) | 5 (27.8) | ||
| Lower lobe | 13 (92.9) | 16 (88.9) | 14 (100) | 17 (94.4) | ||
| Bilateral lobes | 11 (78.6) | 12 (66.7) | 14 (100) | 14 (77.8) | ||
| Distribution | 0.165 | 0.124 | ||||
| Central | 0 (0) | 0 (0) | 0 (0) | 0 (0) | ||
| Peripheral | 4 (28.6) | 10 (71.4) | 2 (14.3) | 8 (44.4) | ||
| Both central and peripheral† | 10 (55.6) | 8 (44.4) | 12 (85.7) | 10 (55.6) | ||
| Opacification | 0.714 | 0.929 | ||||
| Pure GGO | 9 (64.3) | 10 (55.6) | 4 (28.6) | 5 (27.8) | ||
| GGO with consolidation | 4 (28.6) | 5 (27.8) | 9 (64.3) | 11 (61.1) | ||
| Pure consolidation | 1 (7.1) | 3 (16.7) | 1 (7.1) | 2 (11.1) | ||
| Interstitial thickening | 8 (57.1) | 8 (44.4) | 0.722 | 11 (78.6) | 7 (38.9) | 0.036 |
| Bronchiectasis | 0 (0) | 0 (0) | - | 2 (14.3) | 0 (0) | 0.183 |
| Mosaic attenuation | 0 (0) | 0 (0) | - | 0 (0) | 0 (0) | - |
| Crazy paving | 6 (42.9) | 5 (27.8) | 0.465 | 6 (42.9) | 6 (33.3) | 0.718 |
| Air bronchogram | 6 (42.9) | 2 (11.1) | 0.096 | 8 (57.1) | 1 (5.6) | 0.004 |
| Irregular interface | 8 (57.1) | 3 (16.7) | 0.027 | 12 (85.7) | 7 (38.9) | 0.012 |
| Coarse reticular pattern | 1 (7.1) | 0 (0) | 0.437 | 4 (28.6) | 0 (0) | 0.028 |
| Parenchymal band | 7 (50.0) | 2 (11.1) | 0.022 | 13 (92.9) | 10 (55.6) | 0.044 |
| Lymphadenopathy | 3 (21.4) | 0 (0) | 0.073 | 3 (21.4) | 0 (0) | 0.073 |
| Pleural effusion | 2 (14.3) | 0 (0) | 0.183 | 6 (42.9) | 1 (5.6) | 0.027 |
Data are median (interquartile range) or n (%). *Each patient may have multiple lung lobes affected, †Lesions located both central and peripheral in patient.