Table 3

Interobserver agreementa for the classification of histology among subjects in the NYC colonoscopy-based case-control study (1998)

Pathologist BPathologist A: histology classificationTotal
TubularTubulovillousVillous
Tubular456051
Tubulovillous1023134
Villous110112
Total5639297b
  • 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.