KDR and central nervous system cancer: The results of our meta-analysis indicated that all genetic models of VEGFR2 rs2071559 gene polymorphism, starting from dominant (OR 1.40; p < 0.00001), recessive (OR 1.52; p < 0.0001), CC genotype (OR 1.78; p < 0.00001), CT genotype (OR 1.30; p < 0.0001), and C allele (OR 1.41; p < 0.00001), were associated with a higher risk of developing gliomas.