Table 1.

Patient characteristics

Variable	n (%)
Age, median (range)	65 (24–84)
Gender
Male	15 (63)
Female	9 (37)
KPS (%), median (range)	90 (40–90)
Tumor size (cm), median (range)	4.0 (1.5–7.0)
Tumor lacation
Frontal	16 (67)
Other	8 (33)
Mental status
Normal	22 (92)
Abnormal	2 (8)
Neurological function
Work	12 (50)
Other	12 (50)
Duration of symptoms (months)
≤3	21 (88)
>3	3 (12)
Surgery
Gross total	8 (33)
Partial	12 (50)
Biopsy	4 (17)
RPA classes*
III	2 (8)
IV	9 (38)
V	12 (50)
VI	1 (4)

*RPA classes, Recursive partitioning analysis classes for malignant glioma [13, 14]. KPS = Karnofsky performance status.