Interobserver agreementa for the classification of histology among subjects in the NYC colonoscopy-based case-control study (1998)
| Pathologist B | Pathologist A: histology classification | Total | ||||
|---|---|---|---|---|---|---|
| Tubular | Tubulovillous | Villous | ||||
| Tubular | 45 | 6 | 0 | 51 | ||
| Tubulovillous | 10 | 23 | 1 | 34 | ||
| Villous | 1 | 10 | 1 | 12 | ||
| Total | 56 | 39 | 2 | 97b | ||
a κ = 0.48; 95% CI, 0.33–0.62. Weighted κ = 0.53; 95% CI, 0.40–0.66.
b The totals do not equal the number of cases reviewed because of missing information.