Figure 1.
Comparison of OS, DFS between different groups and diagnostic ability for recurrence of various clinical indices. (A) Mean OS between ctDNA positive and negative patients was 22.5 vs. 40.0 months, P<0.001; (B) mean DFS between ctDNA positive and negative patients was 16.6 vs. 35.3 months, P<0.001; (C) mean OS between patients with increased and decreased MAF was 16.8 vs. 25.3 months, P=0.0045; (D) mean DFS between patients with increased and decreased MAF was 7.0 vs. 20.8 months, P<0.001; (E) preoperative ctDNA status ranked the second place in predicting postoperative recurrence among all the parameters assessed with an AUC of 0.625; (F) MAF possessed the greatest AUC (0.710) in predicting postoperative recurrence. OS, overall survival; DFS, disease free survival; ctDNA, circulating tumor DNA; AUC, area under the curve; MAF, mutant allele frequency.