ECHS1 and gastric cancer: However, no marked association was observed between the ECHS1 mRNA expression and OS of N0 stage GC patients (Figure 4D, HR = 0.59, P = 0.21), N1 stage (Figure 4E, HR = 1.34, P = 0.2) or N3 stage (Figure 4G, HR = 0.75, P = 0.28).