Furthermore, we analyzed the impact of OAS1 promoter methylation on prognosis and found that higher levels of OAS1 promoter methylation were associated with better prognosis in tumor types such as BCRA (p = 0.016), LGG (p < 0.001), LIHC (p = 0.017), and LUSC (p = 0.097) (Figure 6B). The gene discussed is OAS1; the disease is neoplasm.