Statistical Table 20

Table 20. One-, Two-, Five-, And Ten-Year Relative Survival Ratesa For Selected Malignant Brain and Central Nervous System Tumors By Age Groups, SEER 1973-1999

Histology

ICDO Code(s)

Age Group

# Cases

1-Year

2-Year

5-Year

10-Year

Pilocytic astrocytoma

9421-9422

0-14

523

97.0

96.0

92.7

90.7

0-19

634

96.9

96.0

92.7

91.2

20-44

201

93.4

90.2

87.2

81.5

45-64

42

87.9

85.5

72.1

57.8

65+

18

b

b

b

b

TOTAL

895

 

 

 

 

Diffuse astrocytoma

9410, 9420

0-14

98

92.9

85.4

80.9

78.2

0-19

124

92.7

86.7

82.3

80.3

20-44

268

89.9

81.8

56.6

37.9

45-64

163

58.8

35.5

23.5

14.2

65+

104

29.3

15.5

6.0

6.0

TOTAL

659

 

 

 

 

Anaplastic astrocytoma

9401, 9411

0-14

117

73.0

57.4

48.8

46.1

0-19

158

78.1

61.0

52.4

47.8

20-44

771

85.9

72.6

49.5

32.8

45-64

598

53.9

32.1

16.1

11.7

65+

471

20.4

6.0

2.4

1.7

TOTAL

1,998

 

 

 

 

Astrocytoma, NOS

9400

0-14

852

87.3

82.0

77.8

73.8

0-19

1,114

87.5

81.4

76.4

72.5

20-44

2,034

86.7

75.5

54.2

37.4

45-64

2,070

49.5

28.8

17.6

10.8

65+

1,746

18.6

7.8

4.6

2.5

TOTAL

6,964

 

 

 

 

Glioblastoma

9440-9442, 9481

0-14

162

47.7

24.7

17.2

15.5

0-19

244

51.0

28.8

19.3

16.4

20-44

1,643

58.9

29.8

13.4

8.4

45-64

5,872

34.8

7.8

2.1

1.0

65+

5,974

13.3

2.1

0.3

0.2

TOTAL

13,733

 

 

 

 

Oligodendroglioma

9450

0-14

99

92.7

89.3

85.3

76.0

0-19

152

92.0

86.2

82.1

76.3

20-44

773

95.2

91.0

80.5

62.1

45-64

453

85.9

74.1

53.6

31.8

65+

146

57.3

45.9

28.5

9.6

TOTAL

1,524

 

 

 

 

Anaplastic oligodendroglioma

9451, 9460

0-14

5

b

b

b

b

0-19

8

b

b

b

b

20-44

109

91.2

73.6

49.7

30.6

45-64

93

72.2

57.2

39.1

29.0

65+

46

44.3

23.9

18.4

b

TOTAL

256

 

 

 

 

Ependymoma/    anaplastic ependymoma

9391-9393

0-14

337

83.5

68.4

48.0

42.2

0-19

380

84.8

71.1

51.9

43.8

20-44

364

91.1

89.1

83.6

75.8

45-64

219

85.3

80.5

69.3

57.9

65+

75

73.7

73.5

70.7

50.4

TOTAL

1,038

 

 

 

 

 

 

 

 

 

 

 

 

Mixed glioma

9382

0-14

72

88.9

80.4

70.0

62.6

0-19

101

87.1

79.9

71.3

64.9

20-44

318

92.1

84.9

69.1

48.8

45-64

188

79.6

58.8

35.1

22.4

65+

57

49.0

35.2

16.4

8.2

TOTAL

664

 

 

 

 

Glioma malignant, NOS