Agreement between the readers on the presence of prostate cancer was higher for a background score of A (Light’s kappa = 0.49, 95% CI = 0.38–0.61) than B (Light’s kappa = 0.34, 95% CI = 0.20–0.51) but did not reach statistical significance (difference = 0.15, t 126 = 1.54, p = 0.063).
1
0.0630
0.0630