Intrarater reliability for the five rheumatologists of B-mode and power Doppler examinations on a joint-by-joint level with weighted κ, percentage exact agreement and percentage close agreement
| Rater1 | Rater 2 | Rater 3 | Rater 4 | Rater 5 | Mean | |
|---|---|---|---|---|---|---|
| B-mode κ | 0.83 | 0.79 | 0.77 | 0.75 | 0.70 | 0.77 |
| B-mode PEA | 80.1 | 80.6 | 71.9 | 73.1 | 70.3 | 75.2 |
| B-mode PCA | 99.4 | 98.1 | 99.7 | 96.2 | 96.8 | 98.0 |
| Power Doppler κ | 0.83 | 0.86 | 0.86 | 0.81 | 0.73 | 0.82 |
| Power Doppler PEA | 83.7 | 87.6 | 85.4 | 82.9 | 76.7 | 83.3 |
| Power Doppler PCA | 98.4 | 98.0 | 98.0 | 98.1 | 96.8 | 97.9 |
PCA, percentage close agreement; PEA, percentage exact agreement.