Patient characteristics
| Category | Characteristics |
|---|---|
| Age | Average, 7.2 ± 5.1 yr (range, 0.8–18 yr) |
| 14/52 (27%) 3 years of age or younger | |
| Sex | Male/female, 2.5:1 |
| Tumor pathology | Medulloblastoma and PNET (n = 19) |
| Ependymoma (n = 12) | |
| Germinoma (n = 4) | |
| Brain stem glioma (n = 3) | |
| ATRT (n = 3) | |
| Craniopharyngioma (n = 3) | |
| Mature teratoma (n = 2) | |
| Pilocytic astrocytoma (n = 2) | |
| High-grade neuroepithelial tumor (n = 1) | |
| Pilomyxoid astrocytoma (n = 1) | |
| Pineal parenchymal tumor (n = 1) | |
| Chordoid meningioma (n = 1) | |
| Total cranial radiation | Average, 54.0 Gy (range, 21–59.4 Gy) |
Note:—ATRT indicates atypical teratoid rhabdoid tumor; PNET, primitive neuroectodermal tumor.