Fig. 4

Comparison of the pd-score with FIT in CRC and AA detection. A, B Comparison of ROC curves along with the corresponding AUCs of the pd-score and FIT in the detection of CRC (A) and AA (B). C Effect of cancer stage on the detection rates of CRC by the pd-score and FIT. D Effect of size on the detection rates of AA by the pd-score and FIT. NS, nonsignificant, *P < 0.05, ** P < 0.01