Intraobserver Reliability
| Observer 1 | Observer 2 | |||
| Criterion | Agreement | κ | Agreement | κ |
| C1 | 95.1% | 0.781 (0.712–0.850) | 85.8% | 0.458 (0.413–0.503) |
| C2 | 84.6% | 0.606 (0.534–0.678) | 85.7% | 0.543 (0.505–0.581) |
| C3 | 91.4% | 0.809 (0.744–0.874) | 88.3% | 0.519 (0.464–0.574) |
| C4 | 99.4% | 0.949 (0.899–1.00) | 98.1% | 0.814 (0.710–0.918) |
| C5 | 97.5% | 0.925 (0.882–0.968) | 96.3% | 0.863 (0.808–0.918) |
| C6 | 91.4% | 0.637 (0.583–0.691) | 95.1% | 0,823 (0.756–0.890) |
| C7 | 93.8% | 0.633 (0.558–0.708) | 95.1% | 0.410 (0.331–0.489) |
| C8 | 93.8% | 0.659 (0.584–0.734) | 97.5% | 0.839 (0.758–0.920) |
Data in parentheses are 95% CI.