The single SNP within each region that was most strongly associated is illustrated. For comparative purposes, some SNP-associated risks (and their 95% confidence limits) have been inverted (see Supplemental Tables 2 and 3). P-values are given for case-control comparisons significant after correction for multiple testing. (MOA=mixed oligoastrocytoma, Oligo=oligodendroglioma, GBM=glioblastoma, AA=anaplastic astrocytoma, A2=astrocytoma grade 2, codel=codeleted)