In 261 cases of lung squamous cell carcinoma, EZH2 mRNA had a high expression with a median survival time of 52.97 months, and in 263 cases, there was a low expression with a median survival time of 62.00 months (HR = 1.03 and 95% CI 0.81−1.3; p = 0.82) (Figure 3(c)). This evidence concerns the gene EZH2 and squamous cell lung carcinoma.