MGMT and central nervous system cancer: Gliomas with evident MGMT methylation had a higher mean APTw = 2.38±.81% (n = 10, subjects 1, 5, 6, 10, 13, 17, 19, 20, 21 and 22) compared to those without MGMT methylation; mean APTw = 1.92±.33% (n = 3 subjects).