Table 2.
Confusion matrices, in minutes, for Cohen’s kappa coefficient in segments for external event recorder (EER) patients 23 and 27, for the established classification of clinical noise intensity (up) and after merging noise-free and low-noise classes (type 0 and 1).
| Observer 2 | ||||||
| Free | Low | Moderate | Hard | Others | ||
| Free | 3.67 | 1.86 | 0.00 | 0.00 | 0.00 | |
| Low | 0.30 | 20.46 | 0.29 | 0.00 | 0.00 | |
| Observer 1 | Moderate | 0.05 | 6.92 | 6.88 | 0.01 | 0.00 |
| Hard | 0.00 | 0.03 | 0.06 | 2.14 | 0.01 | |
| Others | 0.00 | 0.00 | 0.00 | 0.00 | 5.08 | |
| Observer 2 | ||||||
| Free-Low | Moderate | Hard | Others | |||
| Observer 1 | Free–Low | 26.30 | 0.29 | 0.00 | 0.00 | |
| Moderate | 6.97 | 6.88 | 0.01 | 0.00 | ||
| Hard | 0.03 | 0.06 | 2.14 | 0.01 | ||
| Others | 0.00 | 0.00 | 0.00 | 5.08 | ||