Interobserver agreement for the degree of dysplasia among subjects in the NYC colonoscopy-based case-control study (1998)
| Pathologist B | Pathologist A: degree of dysplasia classification | Total | ||||||
|---|---|---|---|---|---|---|---|---|
| None or mild | Moderate | Severe or CIS | Intramucosal | |||||
| None or mild | 13 | 15 | 1 | 0 | 29 | |||
| Moderate | 4 | 19 | 9 | 1 | 33 | |||
| Severe or CIS | 0 | 3 | 16 | 7 | 26 | |||
| Intramucosal | 0 | 1 | 1 | 9 | 11 | |||
| Total | 17 | 38 | 27 | 17 | 99 | |||
| Pathologist B | Pathologist A: degree of dysplasia classification | Total | ||
|---|---|---|---|---|
| Low-grade dysplasiac | High-grade dysplasiad | |||
| Low-grade dysplasia | 51 | 11 | 62 | |
| High-grade dysplasia | 4 | 33 | 37 | |
| Total | 55 | 44 | 99 | |
a κ = 0.42; 95% CI, 0.29–0.55. Weighted κ = 0.59; 95% CI, 0.47–0.70.
b κ = 0.69; 95% CI, 0.55–0.83.
c Includes none, mild, and moderate dysplasia.
d Includes severe, CIS, or intramucosal carcinoma.