Table 3.
CT findings in patients with COVID-19 pneumonia.
| Variables |
All n = 70 |
<14% extent n = 38 |
14–30% extent n = 23 |
≥30% extent n = 9 |
P-value |
|---|---|---|---|---|---|
| COVID-19 features | |||||
| GGO | 70 (100%) | 38 (100%) | 23 (100%) | 9 (100%) | 1.00 |
| Consolidation | 10 (14%) | 5 (13%) | 1 (4%) | 4 (44%) | 0.02 |
| COP | 8 (11%) | 4 (11%) | 3 (13%) | 1 (11%) | 0.96 |
| Air bronchogram | 3 (4%) | 1 (3%) | 1 (4%) | 1 (11%) | 0.53 |
| Subpleural bands | 18 (26%) | 6 (16%) | 10 (44%) | 2 (22%) | 0.06 |
| Reticular thickening | 10 (14%) | 2 (5%) | 6 (26%) | 2 (22%) | 0.06 |
| Non-COVID-19-related abnormalities | |||||
| Emphysema | 5 (7%) | 2 (5%) | 2 (9%) | 1 (11%) | 0.78 |
| Metastases | 16 (23%) | 10 (26%) | 6 (26%) | 0 (0%) | 0.22 |
| Nodes | 3 (4%) | 1 (3%) | 2 (9%) | 0 (0%) | 0.42 |
| Pleural effusion | 15 (21%) | 7 (18%) | 5 (22%) | 3 (33%) | 0.62 |
| Distribution | 0.005 | ||||
| Unilateral | 17 (24%) | 15 (40%) | 2 (9%) | 0 (0%) | |
| Bilateral | 53 (76%) | 23 (60%) | 21 (91%) | 9 (100%) | |
| Topography | 0.48 | ||||
| Peripheral | 63 (90%) | 33 (87%) | 21 (91%) | 9 (100%) | |
| Central | 7 (10%) | 5 (13%) | 2 (9%) | 0 (0%) | |
| Lobes* | |||||
| Upper | 54 (77%) | 24 (63%) | 21 (91%) | 9 (100%) | 0.001 |
| Middle | 37 (53%) | 11 (29%) | 17 (74%) | 9 (100%) | <0.001 |
| Lower | 55 (79%) | 26 (68%) | 20 (87%) | 9 (100%) | 0.06 |
| Lung volume (cm3) | 3048 (2329–3937) |
2839 (2046–3877) |
3327 (2914–4138) |
3293 (2425–3899) |
0.34 |
| Chest CT extent COVID-19 pneumonia (%) | 11.8 (6–19) | 6.6 (5–10) | 17.8 (15–20) | 37.5 (34–49) | <0.001 |
Data are expressed as median (IQR) or n (%). GGO, ground glass opacities; COP, cryptogenic organizing pneumonia.
*
Patients may present multiple lobe involvement.
Bold p-values were considered statistically significant (p < 0.05).