In a previous meta-analysis that analyzed eight independent studies comprising data from 921 patients [68], it was observed that the GLUT-1 overexpression was in connection with worse OS in oral squamous cell carcinoma (OSCC) (HR = 1.88, 95% CI: 1.51–2.33, P < 0.001), which was similar to our result (HR = 2.224, 95% CI: 1.141–3.306; P < 0.0001). The gene discussed is SLC2A1; the disease is oral cavity squamous cell carcinoma.