MIF and glioblastoma: When analyzing individual cohorts by univariate analyses and combined analyses, we observed no significant difference in GBM incidence or patient survival between the rs755622 MIF SNP genotypes; however, we hypothesized that there may be differences in tumor and microenvironment interactions between genotypes given the association of the rs755622 MIF SNP with inflammation in nononcologic conditions (Supplemental Table 1).