Table 2.
Evaluation of agreement between two radiologists in RT-PCR positive and negative patients according to BSTI guidance statement
| RT-PCR | BSTI guidance statement | Observer B | Test value Kappa (κ); p |
|||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||||
| Positive | Observer A | 1-Classical COVID-19 |
N % |
357 91.5 |
32 8.2 |
1 0.3 |
0 | 0.707; < 0.001 |
| 2-Probable COVID-19 |
N % |
36 30.0 |
73 60.8 |
8 6.7 |
3 2.5 |
|||
| 3-Indeterminate |
N % |
0 |
7 11.7 |
43 71.7 |
10 16.7 |
|||
| 4-COVID-19 exclusion |
N % |
0 | 0 |
4 9.5 |
38 90.5 |
|||
| Negative | Observer A | 1-Classical COVID-19 |
N % |
13 100.0 |
0 | 0 | 0 | 0.645; < 0.001 |
| 2-Probable COVID-19 |
N % |
0 |
14 82.4 |
2 11.8 |
1 5.9 |
|||
| 3-Indeterminate |
N % |
0 |
1 2.2 |
24 53.3 |
20 44.4 |
|||
| 4-COVID-19 exclusion |
N % |
0 |
1 0.5 |
23 10.6 |
192 88.9 |
|||