Table 2 Atypical findings according to sex
CT findings | Female, N = 332a | Male, N = 274a | p-valueb |
|---|---|---|---|
Atypical findings | 192 (58%) | 163 (59%) | 0.7 |
Isolated upper lobe involvement | 5 (1.5%) | 5 (1.8%) | 0.8 |
Solitary involvement | 9 (2.7%) | 8 (2.9%) | 0.9 |
Peribronchovascular involvement | 33 (9.9%) | 10 (3.6%) | 0.003 |
Lobar consolidation | 2 (0.6%) | 1 (0.4%) |  > 0.9 |
Tree in bud pattern | 0 (0%) | 3 (1.1%) | 0.092 |
Centrilobular nodules | 5 (1.5%) | 8 (2.9%) | 0.2 |
Pleural effusion | 19 (5.7%) | 20 (7.3%) | 0.4 |
Pleural thickening | 46 (14%) | 57 (21%) | 0.023 |
Pericardial effusion | 15 (4.5%) | 3 (1.1%) | 0.013 |
Subpleural sparing | 9 (2.7%) | 20 (7.3%) | 0.008 |
White lung | 7 (2.1%) | 8 (2.9%) | 0.5 |
Halo sign | 20 (6.0%) | 22 (8.0%) | 0.3 |
Reverse halo sign | 42 (13%) | 17 (6.2%) | 0.008 |
Double halo sign | 1 (0.3%) | 0 (0%) |  > 0.9 |
Target shaped opacity | 11 (3.3%) | 17 (6.2%) | 0.092 |
Lymphadenopathy | 16 (4.8%) | 13 (4.7%) |  > 0.9 |
Cavitation | 0 (0%) | 0 (0%) | Â |
Air bubble sign | 7 (2.1%) | 7 (2.6%) | 0.7 |
Airway changes | 52 (16%) | 50 (18%) | 0.4 |