Table 4 Inter-rater reliability for surgical technique in the Norwegian Tonsil Surgery Register
n | Obs.agr. | Kappa (95% CI) | AC1 (95% CI) | |
|---|---|---|---|---|
Cold steel | 137 | 0.92 | 0.78 (0.66 to 0.91) | 0.87 (0.80 to 0.95) |
Radiofrequency | 137 | – | – | – |
Diathermy scissors | 137 | 0.94 | 0.83 (0.72 to 0.95) | 0.91 (0.85 to 0.97) |
Ultracision | 137 | 0.98 | 0.00 (0 to 0) | 0.98 (0.95 to 1) |
Laser | 137 | – | – | – |
Dissection with bipolar diathermy | 137 | 0.99 | 0.66 (0.04 to 1) | 0.99 (0.98 to 1) |
Other technique | 137 | – | – | – |