Table 3 Validity of different parameters in relation to the clinical grouping (mild vs moderate and severe)
Parameters | AUC | Cutoff | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|
Total severity score | 0.947 | 7.50 | 90.9 | 87.5 |
Total score for crazy-paving and consolidation | 0.979 | 5.50 | 93.2 | 87.5 |
Total opacity score | 0.920 | 8.50 | 84.1 | 81.2 |
LAV | 0.709 | − 573.71 | 75.0 | 68.7 |
HAV | 0.729 | − 392.53 | 81.8 | 62.5 |
Percentage of opacity | 0.908 | 23.81 | 86.0 | 81.2 |
Percentage of high opacity | 0.947 | 5.61 | 90.9 | 81.2 |
No. of segments affected | 0.810 | 12.50 | 79.5 | 43.7 |
Mean HU total (MLD) | 0.876 | − 637.70 | 81.8 | 81.9 |
Lung volume | 0.723 | 3135.20 | 77.3 | 56.2 |