Table 1 Patient Demographics and Tumor Characteristics.

From: Long Term Surgical Outcome and Prognostic Factors of Atypical and Malignant Meningiomas

 

Number(%)

WHO Grade

II

III

All patients

102

86

16

Gender

 Male

45(44.1)

39

6

 Female

57(55.9)

47

10

Age

 Mean ± SD

57.0 ± 16.7

55.5 ± 16.9

65.8 ± 13.0

KPS

 Mean ± SD

74.3 ± 8.3

74.2 ± 8.0

74.6 ± 10.0

Tumor Size (cm)

 Mean ± SD

5.2 ± 2.0

5.1 ± 2.1

5.5 ± 1.5

Location

 Covexity

33(32.4)

31

2

 Parasagittal

32(31.4)

24

8

 Skull base

29(28.4)

26

3

 Posterior fossa

8(7.8)

5

3

Surgical Resection

 GTR

69(67.7)

57

12

 STR

33(32.3)

29

4

Adjuvant Radiotherapy

 Yes

42(41.2)

32

10

 No

60(58.8)

54

6

MIB-1 index

 Mean ± SD

8.6 ± 6.1

7.2 ± 3.9

16.1 ± 9.5

Recurrence or progression

 Yes

52 (51)

38

14

 No

50 (49)

48

2

  1. Abbreviations: WHO, World Health Organization; SD, Standard Deviation; GTR, Gross Total Resection; STR, Subtotal Removal.