Table 1.

Cohort characteristics

General statistics
198 cases total	160 cases with follow-up data
111 male, 87 female	Mean follow-up 7.3 ± 0.4 years
Mean age 8.2 ± 0.3 years	Median follow-up 6.3 years
Median age 7.6 years	Follow-up range 21.3 years
Age range 30 days—18.8 years	9 dead of disease
Diagnoses
143 pilocytic astrocytomas	4 grade II diffuse astrocytomas
27 gangliogliomas	2 grade II oligodendrogliomas
7 low-grade gliomas nos	2 subependymal giant cell astrocytomas
6 pilomyxoid astrocytomas	1 dysembryoplastic neuroepithelial tumor
6 pleomorphic xanthoastrocytomas
Treatment
158 surgery only	40 with adjuvant therapy
	13 chemotherapy only
	19 radiation only
	8 radiochemotherapy

Abbreviations: nos, not otherwise specified.

A total of 204 low-grade pediatric gliomas made up the cohort, 160 of which had available follow-up information. *Six cases were from NF1 patients and are not included in the rest of these analyses (see Supplementary material, Table S1).