Variability | Consensus* | Observer 2 | Observer 1 | |||
---|---|---|---|---|---|---|
Yes | No | Yes | No | Yes | No | |
Local | ||||||
Yes | 118 | 18 | 109 | 30 | 95 | 44 |
No | 27 | 153 | 27 | 162 | 14 | 175 |
Observer 1 | ||||||
Yes | 98 | 6 | 97 | 12 | 34 | 2 |
No | 47 | 165 | 39 | 180 | 5 | 60 |
Observer 2 | ||||||
Yes | 115 | 13 | 44 | 2 | ||
No | 30 | 158 | 1 | 54 |
Perfusion scintigraphy | n | κ (95% CIs) | McNemar |
---|---|---|---|
Local vs. consensus | 316 | 0.71 (0.63–0.79) | 0.23 |
Observer 1 vs. consensus | 316 | 0.66 (0.57–0.74) | 0.000 |
Observer 2 vs. consensus | 316 | 0.72 (0.65–0.80) | 0.014 |
Observer 1 vs. local | 328 | 0.63 (0.54–0.71) | 0.000 |
Observer 2 vs. local | 328 | 0.64 (0.56–0.73) | 0.79 |
Observer 1 vs. observer 2 | 328 | 0.67 (0.59–0.75) | 0.000 |
Observer 1 vs. observer 1 | 101 | 0.85 (0.75–0.96) | 0.45 |
Observer 2 vs. observer 2 | 101 | 0.94 (0.87–1.0) | 1.0 |
↵* Consensus readings of 12 patients were missing. Interobserver agreement is given in lightface type. Numbers in boldface type indicate intraobserver agreement.