Table 1. Basic demographics of childhood cancer patients with single, primary malignant tumor identified in the SEER database (1973–2013).

^aIncludes neuroblastoma.

^bData available in a subgroup of the study population (percentages refer to the total number of patients with available information). Information collected as part of SEER only corresponds to initial management and may not capture additional treatment with disease recurrence.

Abbreviations: CNS, central nervous system; SEER, Surveillance, Epidemiology, and End Results.