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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