Table 3 Comparisons of mean scaled scores for the seven-subtest WAIS-R in classic adult-onset and mild DM1 patients

Verbal

Information

6.5 ± 1.8 (187)

6.3 ± 1.8 (151)

7.0 ± 2.1 (36)

n.s.

Digit Span

6.0 ± 2.4 (188)

5.7 ± 2.4 (151)

6.8 ± 2.3 (37)

0.045

Arithmetic

7.5 ± 2.4 (179)

7.2 ± 2.3 (144)

8.6 ± 2.3 (35)

0.004

Similarities

7.0 ± 2.2 (168)

6.9 ± 2.2 (135)

7.1 ± 2.1 (33)

n.s.

Performance

Picture Completion

6.7 ± 2.2 (188)

6.6 ± 2.1 (151)

7.1 ± 2.5 (37)

n.s.

Block Design

6.3 ± 2.2 (186)

6.0 ± 2.0 (150)

7.5 ± 2.6 (36)

<0.001

Digit Symbol

6.6 ± 2.1 (187)

6.5 ± 2.0 (150)

6.9 ± 2.5 (37)

n.s.