Skip to main content

Table 1 Cohort characteristics

From: The central nervous system tumor methylation classifier changes neuro-oncology practice for challenging brain tumor diagnoses and directly impacts patient care

Characteristic

  
 

Mean

Range

Age (years)a

41.0

18–71

Follow-up since surgery (years)b

2.1

0.1–15.5

  

N

%

Gendera

Male

25

49

Tumor locationb

Supratentorial

38

81

Infratentorial, intracranial

7

15

Spinal, intradural

2

4

Surgery for recurrent tumorb

8

17

Extent of resectiond

Subtotal resection

30

68

Current statusb

Well/stable disease

35

74

Palliative/deceased

12

26

Indication for methylation profilinge

Challenging diagnosis with differential given

20

36

Diagnoses without classical features

13

24

Final determination of IDH status

11

20

Molecular subtyping

4

7

Final determination of 1p/19q co-deletion status

4

7

Clinical discrepancy with pathologic diagnosis

3

5

Initial WHO gradee

I

8

15

II

15

27

III

13

24

IV

15

27

Not graded

4

7

  1. an = 51
  2. bn = 47
  3. cn = 45
  4. dn = 44
  5. en = 55