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Table 1 Description of patient population at the time of first diagnosis of oligodendroglioma or oligoastrocytoma (n = 315)

From: Retrospective analysis of treatment outcome in 315 patients with oligodendroglial brain tumors

  

n

%

Age (in years)

<20

15

5%

 

≥20 – <30

53

17%

 

≥30 – <40

87

28%

 

≥40 – <50

82

26%

 

≥50 – <60

43

14%

 

≥60 – <70

26

8%

 

≥70

9

3%

 

median (range)

40 (4 – 77)

Sex

male

202

64%

 

female

113

36%

Previous resection

yes

83

26%

 

no

232

74%

Histology and grade

Oligodendroglioma, WHO II

87

28%

 

Oligodendroglioma, WHO III

10

3%

 

Oligoastrocytoma, WHO II

181

57%

 

Oligoastrocytoma, WHO III

37

12%