Table 3.
Descriptive statistics (frequency and percent) of discrete (categorical) clinical features in the training/validation and test sets.
| Categorical Features | Training/Validation (frequency in %) | Test (frequency in %) | p-value | |
|---|---|---|---|---|
| Gender | F | 37 (34.6%) | 28 (62.2%) | 0.15 |
| M | 70 (65.4%) | 17 (37.8%) | ||
| ground-glass opacities (GGO) | 0 | 4 (3.74%) | 0 | 1.00 |
| 1 | 49 (45.8%) | 21 (46.7%) | ||
| 2 | 54 (50.5%) | 24 (53.3%) | ||
| Consolidation | 0 | 7 (6.54%) | 7 (15.6%) | 1.00 |
| 1 | 53 (49.5%) | 13 (28.9%) | ||
| 2 | 47 (43.9%) | 25 (55.6%) | ||
| Reticular | 0 | 36 (33.6%) | 12 (26.7%) | 0.58 |
| 1 | 51 (47.7%) | 25 (55.6%) | ||
| 2 | 20 (18.7%) | 8 (17.8%) | ||
| Axial Distribution)Ax.Dist( | 1 | 61 (57%) | 23 (51.1%) | 0.74 |
| 2 | 2 (1.87%) | 1 (2.22%) | ||
| 3 | 44 (41.1%) | 21 (46.7%) | ||
| Coronal Distribution (CC.Dist) | 1 | 4 (3.74%) | 2 (4.44%) | 0.37 |
| 2 | 36 (33.6%) | 16 (35.6%) | ||
| 3 | 67 (62.6%) | 27 (60%) | ||
| Number of Involved Zones (Num.Zones.Involved) | 1 | 3 (2.8%) | 1 (2.22%) | 0.79 |
| 2 | 9 (8.41%) | 3 (6.67%) | ||
| 3 | 6 (5.61%) | 4 (8.89%) | ||
| 4 | 9 (8.41%) | 5 (11.1%) | ||
| 5 | 20 (18.7%) | 5 (11.1%) | ||
| 6 | 60 (56.1%) | 27 (60%) | ||
| Pleural Effusion (Pleural.Eff) | 0 | 78 (72.9%) | 36 (80%) | 0.46 |
| 1 | 29 (27.1%) | 9 (20%) | ||
| Pericardial Effusion (Pericardial.Eff) | 0 | 88 (82.2%) | 37 (82.2%) | 1.00 |
| 1 | 19 (17.8%) | 8 (17.8%) | ||
| Emphysema | 0 | 79 (73.8%) | 34 (75.6%) | 0.61 |
| 1 | 28 (26.2%) | 11 (24.4%) | ||
| Cardiomegaly | 0 | 49 (45.8%) | 22 (48.9%) | 1.00 |
| 1 | 58 (54.2%) | 23 (51.1%) | ||
| Diabetes | 0 | 76 (71%) | 35 (77.8%) | 0.50 |
| 1 | 31 (29%) | 10 (22.2%) | ||
| Hypertension) HTN ( | 0 | 71 (66.4%) | 28 (62.2%) | 1.00 |
| 1 | 36 (33.6%) | 17 (37.8%) | ||
| Ischemic Heart Disease) IHD ( | 0 | 82 (76.6%) | 37 (82.2%) | 1.00 |
| 1 | 25 (23.4%) | 8 (17.8%) | ||
| Cancerous | 0 | 95 (88.8%) | 42 (93.3%) | 0.75 |
| 1 | 12 (11.2%) | 3 (6.67%) | ||
| Smoking | 1 | 94 (87.85%) | 39 (86.67%) | 0.55 |
| 2 | 9 (8.41%) | 4 (8.89%) | ||
| 3 | 4 (3.74%) | 2 (4.44%) | ||
| Consciousness | 0 | 2 (1.87%) | 0 | 0.46 |
| 1 | 1 (0.935%) | 1 (2.22%) | ||
| 2 | 9 (8.41%) | 4 (8.89%) | ||
| 3 | 95 (88.8%) | 40 (88.89%) | ||
| Mixed | 0 | 50 (46.7%) | 30 (66.7%) | 0.57 |
| 1 | 57 (53.3%) | 15 (33.3%) |