Fig. 2.

Kaplan-Meier (KM) survival curves of the DNA methylation-based risk score models in TCGA. a The seven-CpG based risk score model in OS dataset. b The seven-CpG based risk score model in DSS dataset. c The seven-CpG based risk score model in PFI dataset. D The five-CpG based risk score model in DFI dataset. In each dataset, GC patients were equally categorized into three groups based on the tertile of risk scores of all patients. Blue curves represent low risk score groups; Yellow curves represent median risk score groups; Red curves represent high risk score groups. Log-rank tests were used to compare survival curves among subgroups for each prognostic outcome of GC