Table 5.
Frequency of CT features in the young (<45 years of age) and old (≥45 years of age) groups with pneumonia
| Feature | Young group (n = 61) | Old group (n = 118) | p |
|---|---|---|---|
| Ground‐glass opacity | 33 (54.1%) | 97 (82.2%) | <.001 |
| Crazy‐paving pattern | 10 (16.4%) | 62 (52.5%) | <.001 |
| Consolidation | 12 (19.7%) | 57 (48.3%) | <.001 |
| Vessel enlargement | 24 (39.3%) | 88 (74.6%) | <.001 |
| Bronchiectasis | 10 (16.4%) | 54 (45.8%) | <.001 |
| Subpleural curvilinear opacity | 8 (13.1%) | 40 (33.9%) | <.001 |
| Architectural distortion | 5 (8.2%) | 51 (43.2%) | <.001 |
| Intrathoracic lymphadenopathy | 1 (1.6%) | 17 (14.4%) | .150 |
| Pleural effusion | 0 (0%) | 12 (10.2%) | .012 |
| Bilateral involvement | 22 (36.1%) | 89 (75.4%) | <.001 |
| Focal involvement | 11 (18.0%) | 8 (6.8%) | .015 |
| Multifocal involvement | 22 (36.1%) | 96 (81.4%) | <.001 |
| Lower lung predominance | 19 (31.1%) | 56 (47.5%) | .271 |
| No craniocaudal distribution | 11 (18.0%) | 40 (33.9%) | .406 |
Note: The counting data were presented as count (percentage of total). Bold values denote statistical significance at the p < .05 level.
Abbreviation: CT, computed tomography.