Table 1 Characteristics of participants (N = 100)

Overall

50

50

100

 Female

23 (46.0)

24 (48.0)

47 (47.0)

 Male

27 (54.0)

26 (52.0)

53 (53.0)

  ≤ 60

31 (62.0)

27 (54.0)

58 (58.0)

  > 60

19 (38.0)

23 (46.0)

42 (42.0)

 Ever

17 (34.0)

19 (38.0)

36 (36.0)

 Never

33 (66.0)

31 (62.0)

64 (64.0)

 Ever

15 (30.0)

18 (36.0)

33 (33.0)

 Never

35 (70.0)

32 (64.0)

67 (67.0)

 Low-grade glioma

24 (48.0)

–

–

 High-grade glioma

26 (52.0)

–

–

 Frontal lobe

15 (30.0)

–

–

 Temporal lobe

11 (22.0)

–

–

 Parietal lobe

6 (12.0)

–

–

 Occipital lobe

7 (14.0)

–

–

 Other

11 (22.0)

–

–

 Negative (−)

10 (20.0)

–

–

 Weakly positive (+)

16 (32.0)

–

–

 Moderately positive (++)

14 (28.0)

–

–

 Strongly positive (+++)

10 (20.0)

–

–