Intra- and Interobserver Agreement Assessments
| Evaluation | Comparison | κ | 95% confidence interval on SE | κmean |
| Visual | A vs. A | 0.93 | 0.85–1.00 | 0.95 |
| B vs. B | 0.98 | 0.95–1.00 | ||
| C vs. C | 0.93 | 0.85–1.00 | ||
| A vs. B | 0.80 | 0.68–0.91 | 0.80 | |
| A vs. C | 0.85 | 0.75–0.95 | ||
| B vs. C | 0.76 | 0.64–0.88 | ||
| Visual and SBR | A vs. B | 0.94 | 0.88–1.00 | 0.86 |
| A vs. C | 0.83 | 0.72–0.94 | ||
| B vs. C | 0.81 | 0.70–0.92 | ||
| Visual, SBR, and CPR | A vs. B | 1.00 | Not applicable | 0.95 |
| A vs. C | 0.93 | 0.85–1.00 | ||
| B vs. C | 0.93 | 0.85–1.00 |