CT features | Mild group(n = 102) | Severe group (n = 50) | χ2 /Z Value | P Value |
---|---|---|---|---|
Location | 16.828 | < 0.001 | ||
Unilateral lung | 28 (27.5) | 0 (0.0) | ||
Bilateral lung | 74 (72.5) | 50 (100.0) | ||
Distribution | 25.238 | < 0.001 | ||
Subpleural | 57 (55.9) | 7 (14.0) | ||
Subpleural with central | 44 (43.1) | 43 (86.0) | ||
Central | 1 (1.0) | 0 (0.0) | ||
Morphology | 31.109 | < 0.001 | ||
Nodular or patchy | 50 (49.0) | 5 (10.0) | ||
Nodular with patchy | 26 (25.5) | 10 (20.0) | ||
Patchy with segmental | 26 (25.5) | 35 (70.0) | ||
Density | 15.039 | 0.001 | ||
GGO | 50 (49.0) | 9 (18.0) | ||
GGO with consolidation | 46 (45.1) | 39 (78.0) | ||
Consolidation | 6 (5.9) | 2 (4.0) | ||
Vascular bundle thickening | 10.805 | 0.001 | ||
Yes | 69 (67.6) | 46 (92.0) | ||
No | 33 (32.4) | 4 (8.0) | ||
Air bronchogram sign | 5.834 | 0.016 | ||
Yes | 40 (39.2) | 30 (60.0) | ||
No | 62 (60.8) | 20 (40.0) | ||
Crazy-paving sign | 8.554 | 0.003 | ||
Yes | 50 (49.0) | 37 (74.0) | ||
No | 52 (51.0) | 13 (26.0) | ||
Pulmonary fibrosis | 1.314 | 0.252 | ||
Yes | 45 (44.1) | 27 (54.0) | ||
No | 57 (55.9) | 23 (46.0) | ||
Mosaic perfusion sign | 37.621 | < 0.001 | ||
Yes | 1 (1.0) | 18 (36.0) | ||
No | 101 (99.0) | 32 (64.0) | ||
Pleural effusion | 7 (6.9) | 5 (10.0) | 0.125 | 0.723 |
Thoracic lymphadenopathy | 18 (17.6) | 10 (20.0) | 0.124 | 0.725 |
Number of segments involved | 5.5 (3.0–8.0) | 10 (9.0–11.0) | −6.510 | < 0.001 |
Severity score of lung | 4 (2.0–5.0) | 7 (5.0–9.0) | −7.712 | < 0.001 |