Predicting tumor response after preoperative chemoradiation using clinical parameters in rectal cancer

Figure 1 Area under the receiver operating characteristic curve. A: Risk score in the test set was 80.5%, suggesting it was a reasonable predictor of complete regression (P < 0.001, 95% confidence interval = 0.723-0.886, n = 151); B: In the validation set, risk score was 87.5%. (P < 0.031, 95% confidence interval = 0.672-1.078, n = 151).