Under “Common Variants”, the top 5 most frequent single nucleotide polymorphisms (SNPs), previously shown in genome wide association studies (GWASes) to be associated with glioma, were: rs1110784 (in ATP9B, 65.38%), rs1760897 (in TEP1, 48.08%), rs3828550 (in KDR, 11.54%), rs1799782 (in XRCC1, 7.69%) and rs1468358 (in PLOD3, 3.85%). Here, KDR is linked to central nervous system cancer.