As for lung cancer [6–8] in three studies involved 518 patients, the pooled results suggested overexpression of GLUT1 had a significantly poor survival effect on OS (fixed-effect model; HR=2.188, 95% CI=1.348–3.553, p = 0.002; I2 = 0%, p = 0.685). This evidence concerns the gene SLC2A1 and lung cancer.