Table 1.
Characteristics of the subjects.
| Variables | Healthy subjects (mean, n = 135) | Patients (mean, n = 61) | p-Value |
|---|---|---|---|
| Age | 28.742 | 33.207 | 0.012a |
| Gender | |||
| Male (%) | 57% | 82% | <0.001b |
| Female (%) | 43% | 18% | |
| Age of onset | NA | 20.82 | |
| Education (mean, in years) | 14.71 | 12.98 | <0.001a |
| Handedness | |||
| Right | 127 | 60 | |
| Left | 6 | 0 | 0.212b |
| Mixed | 1 | 1 | |
| WAIS-III verbal | 108.3 (sd 13.97) | 100.6 (sd 14.63) | 0.001a |
| WAIS-III performance | 109.1 (sd 11.68) | 97.3 (sd 17.27) | <0.001a |
n, number of patients; (*) For one patient of the healthy group handedness was not recorded.
a
Wilcoxon-Mann-Whitney test was used for the continuous variables.
b
The correlation of the categorical variables was carried out using Fisher exact test.