The significant negative association between YAP expression and survival of patients with NSCLC was also observed in the overall population [disease-free survival (DFS): Ph = 0.878, I2 = 0.00%, crude HR = 2.562, 95% CI = 1.876–3.499; OS: Ph = 0.878, I2 = 0.00%, crude HR = 1.777, 95% CI = 1.233–2.562] and the Asian population (DFS: Ph = 0.414, I2 = 0.00%, crude HR = 2.515, 95% CI = 1.755–3.063; OS: Ph = 0.712, I2 = 0.00%, crude HR = 1.772, 95% CI = 1.214–2.587). The gene discussed is YAP1; the disease is non-small cell lung carcinoma.