Fig. 2

Disease-free survival rates of 104 colorectal cancer (CRC) patients. Disease-free survival rates were assessed using the Kaplan–Meier method, and differences in survival rates were determined using the log-rank test. CRC patients were divided into low and high expression subgroups based on the cut-off value in the ROC curve of miR expression. a–f Disease-free survival was significantly shorter in CRC patients in the high miR-7 (a, P = 0.033), miR-141 (c, P < 0.0001), and miR-494 (e, P = 0.03) expression subgroups. Disease-free survival was significantly longer in CRC patients in the high miR-93 (b, P < 0.0001), miR-195 (c, P = 0.002), and let-7b (e, P = 0.015) expression subgroups