However, the combined HRs of gastric cancer and colorectal cancer were (HR = 0.66, 95% CI: 0.16–1.15) and (HR = 0.91, 95% CI: 0.63–1.19), respectively, indicating EZH2 was not an indicator of poor prognosis in gastric cancer or colorectal cancer. Here, EZH2 is linked to colorectal cancer.