Computed tomography of the chest: features of COVID-19 pneumonia
| Variable | Asthmatic | Control | p-value |
| Patients n | 37 | 66# | |
| Ground-glass opacities | 36 (97) | 64 (97) | 1.000 |
| Consolidations | 26 (70) | 56 (85) | 0.132 |
| Lower lobe predominance | 19 (51) | 44 (67) | 0.187 |
| Crazy paving | 13 (38) | 30 (45) | 0.453 |
| Topography | |||
| Peripheral | 22 (59) | 39 (59) | 0.971 |
| Central | 1 (3) | 1 (2) | 1.000 |
| Mixed | 14 (38) | 26 (39) | 0.876 |
| Lesion extent | |||
| Mild (<10%) | 9 (24) | 6 (9) | 0.035* |
| Moderate (10–25%) | 15 (41) | 18 (27) | 0.166 |
| Severe (25–50%) | 11 (30) | 31 (47) | 0.088 |
| Very severe (50–75%) | 1 (3) | 10 (16) | 0.050* |
| Critical (>75%) | 1 (3) | 1 (1) | 1.000 |
| Mild-to-moderate | 24 (65) | 24 (36) | 0.005* |
| Severe-to-critical | 13 (35) | 42 (64) | 0.005* |
Data are presented as n (%), unless otherwise stated. #: patients with available information; there were 75 control patients in total.