Interobserver agreement (kappa statistics) for a diagnosis of high grade dysplasia, intramucosal adenocarcinoma, and submucosal adenocarcinoma—second histological assessment (n=75)
| Reading | Overall kappa | Individual kappa | 95% CI | Interpretation |
|---|---|---|---|---|
| GI-1/GI-2, gastrointestinal pathologists 1 and 2; GSP, general surgical pathologist; HGD, high grade dysplasia; IMC, intramucosal adenocarcinoma; SMC, submucosal adenocarcinoma; Kappa, kappa coefficient; 95% CI, confidence interval. | ||||
| All observers | 0.65 | 0.56–0.74 | Good | |
| HGD | 0.62 | 0.49–0.75 | Good | |
| IMC | 0.52 | 0.39–0.65 | Moderate | |
| SMC | 0.82 | 0.69–0.95 | Very good | |
| GI-1/GI-2 | 0.68 | 0.52–0.84 | Good | |
| GI-1/GSP | 0.62 | 0.46–0.78 | Good | |
| GI-2/GSP | 0.65 | 0.49–0.81 | Good | |