Table 1.
Demographic and clinical characteristics of participants.
| Characteristic | Patients (n = 30) |
Controls (n = 20) |
P value |
|---|---|---|---|
| Age (years) | 9.60 ± 2.11 | 9.55 ± 2.14 | 0.935a |
| Sex (female/male) | 18/12 | 10/10 | 0.485b |
| IQ | |||
| Full-scale IQ | 110.0 ± 14.95 | 116.2 ± 16.51 | 0.210a |
| Verbal IQ | 103.5 ± 14.75 | 118.9 ± 16.94 | 0.003 a |
| Performance IQ | 115.2 ± 16.45 | 110.8 ± 15.75 | 0.378a |
| Education (years) | 3.4 ± 1.96 | 4.2 ± 2.22 | 0.186a |
| Onset age (years) | 7.53 ± 2.11 | N.A. | — |
| Duration (months) | 26.43 ± 35.66 | N.A. | — |
| FD (mm) | 0.18 ± 0.11 | 0.14 ± 0.08 | 0.210c |
The intelligence quotient (IQ) scores in patients and controls were based on the results of 29 and 16 participants, respectively. FD denotes mean framewise displacement. The other values are illustrated as mean ± SD.
aTwo-sample t-test.
bChi-square test.
cMann Whitney U-test.