Table 1 Demographic data of patient cohort and validation cohort.

Age [median (range)]

59 (19–82)

61 (9–84)

Sex

Male

55

37

Female

36

26

Location

Frontal

18

20

Temporal

19

18

Parietal

23

13

Occipital

1

3

>1 lobe

30

9

Grade

II

18

11

III

8

7

IV

65

45

Events

Death

65 (follow-up: 6–104 months, median 17 months)

41 (follow-up: 2–39 months, median 12 months)

Censored

26 (follow-up: 8–48 months, median 13 months)

22 (follow-up: 16–52 months, median 16.5 months)

Surgery

Partial

55

24

Complete

36

39

Radiotherapy

Yes

72^a

57^a

No

19

6

Chemotherapy

Yes

23^b

43

No

35

6

Information not available

33

14