paediatrics Brussels 17

1352

Ris et al.

TABLE II. Comparison of Demographic and Clinical Characteristics in the Intellectual Testing Subsample and Academic Achieve- ment Subsample Versus the A9961 Patients Who Did Not Participate

At least baseline academic achievement testing, included in analysis (n ¼ 75)

No baseline academic achievement testing, not included in analysis (n ¼ 304)

At least baseline intellectual testing, included in analysis (N ¼ 110)

No baseline intellectual testing, not included in analysis (n ¼ 269)

Sex

Male N

57

166

42

181

Percent

51.8

61.7

56.0

59.5

Female N

53

103

33

123

Percent

48.2

38.3

44.0

40.5

Treatment regimen A N

57

130

41

146

Percent

51.8

48.3

54.7

48.0

B

N

53

139

34

158

Percent

48.2

51.7

45.3

52.0

Extent of resection No tumor sampling/no surgery N 0

1

0 0

1

Percent

0

0.4

0.3

Subtotal resection N

2

10

2

10

Percent

1.8

3.7

2.7

3.3

Radical subtotal resection N

12

60

9

63

Percent

10.9

22.3

12.0

20.7

Gross total N

96

198

64

230

Percent

87.3

73.6

85.3

75.7

Amount of residual tumor None/not visible N

90

182

59

213

Percent 1.5 cm 2 N Percent

81.8

67.7

78.7

70.1

10

53

7

56

9.1

19.7

9.3

18.4

> 1.5 to 3.0 cm 2 N

0 0

1

0 0

1

Percent

0.4

0.3

Tumor present, but not measurable N 4

17

4

17

Percent

3.6

6.3

5.3

5.6

Equivocal for tumor N

6

16

5

17

Percent

5.5

5.9

6.7

5.6

Cerebellar mutism syndrome Yes N

24

60

13

71

Percent

21.8

22.3

17.3

23.4

No

N

84

203

60

227

Percent

76.4

75.5

80.0

74.7

Unknown N

2

6

2

6

Percent

1.8

2.2

2.7

2.0

Brain stem involvement

( Continued )

Pediatr Blood Cancer DOI 10.1002/pbc

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