“…Most articles reported gender distribution, noting PBT survivors were predominantly male (52%) and caregivers female (71%). Ten studies exclusively included high-grade glioma (HGG) samples [ 17 , 24 , 25 , 30 , 36 , 37 , 40 , 43 , 46 , 47 ], while seven exclusively included low-grade glioma (LGG) samples [ 21 , 23 , 27 , 31 , 35 , 39 , 42 ]. Seventeen studies involved mixed samples of LGG and HGG [ 14 – 16 , 19 , 20 , 22 , 26 , 28 , 29 , 32 – 34 , 38 , 39 , 41 , 44 , 45 ].…”