Fig. 3From: Development and validation of postoperative circulating tumor DNA combined with clinicopathological risk factors for recurrence prediction in patients with stage I-III colorectal cancerUnivariate and multivariate Cox analysis of RFS by clinicopathological variables and postoperative ctDNA status. A Univariate Cox regression is used to screen factors potentially correlated with RFS (P < 0.1). B The factors with P < 0.1 in the univariate Cox regression are included in the multivariate Cox regression to calculate the independent risk factors. RFS recurrence-free survival, ctDNA circulating tumor DNA, PTL primary tumor location, LV_invasion lymphovascular invasion, N_invasion nerve invasion, MSI microsatellite instability, pre_CEA preoperative carcinoembryonic antigenBack to article page