Table: Baseline Characteristics
Variable N N = 2,3971
Age (years) 2,397 42 (22)
Sex 2,397 1,011 (42%)
Tumor Topology 2,397
    Overlapping lesion of brain
472 (20%)
    BrainStem
154 (6.4%)
    Cerebellum
334 (14%)
    FrontalLobe
493 (21%)
    OccipitalLobe
82 (3.4%)
    ParietalLobe
309 (13%)
    TemporalLobe
462 (19%)
    Ventricles
91 (3.8%)
Histology Class 2,397
    Glioma
439 (18%)
    Astrocytic
523 (22%)
    Embryonal
89 (3.7%)
    Ependimoma
109 (4.5%)
    Glioblastoma
986 (41%)
    Lymphoma
49 (2.0%)
    Medulloblastoma
202 (8.4%)
Surgery Performed 2,397 2,135 (89%)
Radiotherapy 2,397 1,298 (54%)
Chemotherapy 2,397 591 (25%)
1 Mean (SD); n (%)