Table 5.

Mean Intraobserver Agreement (Concordance) and 95% CIs in 1000 Samples (n = 18)^a

	Pathologist 1	Pathologist 2	Pathologist 3	Pathologist 4	Pathologist 5
Mean concordance, %	82.96	93.61	72.20	94.18	75.72
95% CI	82.56-83.36	93.38-93.84	71.77-72.62	93.95-94.42	75.26-76.17
Mean concordance counting major discrepancies, %	94.28	97	90.49	94.18	94.59
95% CI	94.03-94.53	96.82-97.17	90.20-90.78	93.95-94.42	94.35-94.83

CI, confidence interval.

^aSamples were drawn from the total cases (range, 32-37) examined by each study pathologist. Minor discrepancies were adjudicated and resolved in discussion with a second expert, as needed.