High expression status of GLUT1 was related to poor 5-year OS of oral squamous cell carcinoma (OR: 2.70; 95% CI, 1.57–4.65, P = 0.0003) (Figure 5A), and breast carcinoma (OR: 6.81; 95% CI, 1.94-23.98, P = 0.003) (Figure 5B). This evidence concerns the gene SLC2A1 and oral cavity squamous cell carcinoma.