Table 4

Interobserver agreement for the degree of dysplasia among subjects in the NYC colonoscopy-based case-control study (1998)

Pathologist BPathologist A: degree of dysplasia classificationTotal
None or mildModerateSevere or CISIntramucosal
None or mild13151029
Moderate4199133
Severe or CIS0316726
Intramucosal011911
Total1738271799
Pathologist BPathologist A: degree of dysplasia classificationTotal
Low-grade dysplasiacHigh-grade dysplasiad
Low-grade dysplasia511162
High-grade dysplasia43337
Total554499
  • 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.