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Receiver operating characteristic curves for the nomogram and PSA level (ng/mL) in predicting prostate cancer and for the nomogram in predicting high Gleason prostate cancer. (A): Area under the curve (AUC), 0.804; SE = 0.53; p-value < 0.001; 95% confidence interval (CI), 0.70-0.908. (B): AUC, 0.688; SE = 0.069; p-value = 0.013; 95% CI, 0.55-0.823. (C): AUC, 0.902; SE = 0.43; p-value < 0.001; 95% CI, 0.818-0.986.
