NOD2 and glioblastoma: Finally, analysis of NOD2 rs2066844 genotype distribution revealed that TT genotype was significantly associated with a higher risk of developing glioblastoma when compared with the most frequent genotype in both codominant and dominant models (p = 0.018 OR = 4,948 (0.547–44,79) and p = 0.006 OR = 2,193 (1.241–3.877)).