The results showed that high EZH2 expression was correlated with poor OS [HR: 1.40 (95% CI: 1.13-1.67); P = 0.000; Figure 4A] in breast cancer instead of lung [HR: 1.60 (95% CI: 0.91-2.29); P = 0.376; Figure 4B] and CRC [HR: 0.75 (95% CI: 0.28-1.22); P = 0.340; Figure 4C]. Here, EZH2 is linked to breast cancer.