Table 2.

Patient Characteristics

Characteristic	No. of Patients (n = 261)
Sex
Male	150
Female	111
Age, y
<3	13
3 to <12	90
≥12	158
Location
Supratentorial	204
Infratentorial	33
Spinal	24
Histology: WHO grade
I	200
II	41
III	20
Neurofibromatosis
Yes	44
No	217
Initial surgery
Gross total resection	204
Subtotal resection	57
Upfront radiotherapy
Yes	27
No	234
Relapse
Yes	48
No	213

Abbreviations: WHO, World Health Organization.