Table 1 Subject demographics
 | Tumor types | |||||
---|---|---|---|---|---|---|
 | Total (N = 34) | Astrocytoma (N = 8) | Embryonal (N = 6) | Ependymoma (N = 10) | Glioneuronal/neuronal (N = 8) | Non-Tumor (N = 2) |
Sex | ||||||
   F | 14 (41 %) | 3 (38%) | 3 (50%) | 5 (50%) | 1 (12%) | 2 (100%) |
   M | 20 (59 %) | 5 (62%) | 3 (50%) | 5 (50%) | 7 (88%) | 0 (0%) |
Age (years) | Â | Â | Â | Â | Â | Â |
   Mean (SD) | 8.5 (±5.3) | 5.6 (±4.5) | 9.2 (±5.4) | 9.5 (±4.3) | 10.5 (±6.5) | 5.8 (±7.4) |
Grade | Â | Â | Â | Â | Â | Â |
   High | 12 (35 %) | 0 (0%) | 6 (100%) | 5 (50%) | 1 (12%) | 0 (0%) |
   Low | 18 (53 %) | 8 (100%) | 0 (0%) | 4 (40%) | 6 (75%) | 0 (0%) |
   NEC/NOS | 2 (6 %) | 0 (0%) | 0 (0%) | 1 (10%) | 1 (12%) | 0 (0%) |
   Missing | 2 (5.9%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 2 (100%) |
Location | ||||||
   Metastasis | 1 (3 %) | 1 (12%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
   Subtentorial | 19 (56 %) | 5 (62%) | 5 (83%) | 8 (80%) | 1 (12%) | 0 (0%) |
   Supratentorial | 14 (41 %) | 2 (25%) | 1 (17%) | 2 (20%) | 7 (88%) | 2 (100%) |