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Table 1: 
Demographics and diagnoses of the pediatric age group tabulated as NDN versus HDNa
Variable/GroupNDN (n = 5) (%)HDN (n = 15) (%)
Race (white versus nonwhite)3 W (100)11 W (73), 4 NW (27)
Sex (female vs male)3 F (60), 2 M (40)5 F (33), 10 M (67)
Total RT dose mean (SD) (cGy)5628 (222)5196 (680)
Anaplastic astrocytoma1 (20.0)1 (6.7)
Astrocytoma0 (0.0)3 (20.0)
Astrocytoma, pilocytic1 (20.0)2 (13.3)
Desmoplastic nodular medulloblastoma0 (0.0)1 (6.7)
Ependymoma1 (20.0)2 (13.3)
Glioma, malignant1 (20.0)0 (0.0)
Medulloblastoma1 (20.0)5 (33.3)
Primitive neuroectodermal tumor0 (0.0)1 (6.7)
  • Note:—W indicates white; NW, nonwhite.
  • ↵a Note a significantly higher HDN percentage compared with the adult population.