Table 3.
Inter-rater reliability. Intervals: 0.01–0.20 slight agreement; 0.21–0.40 fair agreement; 0.41–0.60 moderate agreement; 0.61–0.80 substantial agreement; 0.81–1.00 almost perfect or perfect agreement
| Index | Kappa | t | p | Intervals |
|---|---|---|---|---|
| Ground-glass opacity (GGO) | 0.508 | 9.011 | 0.000000 | Moderate agreement |
| Consolidation | 0.410 | 7.266 | 0.000000 | Moderate agreement |
| Mixed GGO and Consolidation | 0.664 | 11.799 | 0.000000 | Substantial agreement |
| Single/multiple nodules with halo sign | 0.519 | 9.204 | 0.000000 | Moderate agreement |
| Peripheral distribution | 0.212 | 4.823 | 0.000001 | Fair agreement |
| Centrolobular distribution | 0.190 | 3.492 | 0.000480 | Slight agreement |
| Both peripheral and centrolobular distribution | 0.239 | 5.920 | 0.000000 | Fair agreement |
| Upper lung | 0.306 | 5.578 | 0.000000 | Fair agreement |
| Lower lung | 0.566 | 10.057 | 0.000000 | Moderate agreement |
| Both upper lung and lower lung | 0.733 | 13.034 | 0.000000 | Substantial agreement |
| Unilateral | 0.643 | 11.388 | 0.000000 | Substantial agreement |
| Bilateral | 0.853 | 15.113 | 0.000000 | Almost perfect agreement |
| Focal | 0.530 | 9.415 | 0.000000 | Moderate agreement |
| Multifocal | 0.676 | 12.060 | 0.000000 | Substantial agreement |
| Diffuse | 0.500 | 9.215 | 0.000000 | Moderate agreement |
| Interlobular septal thickening | 0.416 | 7.412 | 0.000000 | Moderate agreement |
| Bronchial wall thickening | 0.269 | 5.022 | 0.000001 | Fair agreement |
| Air bronchogram | 0.500 | 9.661 | 0.000000 | Moderate agreement |
| Lymph nodes | 0.404 | 8.107 | 0.000000 | Fair agreement |
| Pleural effusion | 0.709 | 12.573 | 0.000000 | Substantial agreement |
| COVID Positive according to CT findings | 0.814 | 14.419 | 0.000000 | Almost perfect agreement |