Table 1.
Descriptive data of the sample
| N = 135 (IG sample) | |
|---|---|
| Age in years, mean (SD), range | 9.07 (0.82) 7.6–11.0 |
| Sex distribution (F/M) | 65/70 (48.15%) |
| DSM‐IV ADHD symptoms | |
| Raw score, mean (SD) | 7.78 (9.02) |
| Range | 0–42 |
| Wilcoxon test sex differences, pvalue | W = 2,727; p = 1.43e‐3 |
| DSM‐IV inattention domain | |
| Raw score, mean (SD) | 4.56 (4.53) |
| Range | 0–24 |
| Wilcoxon test sex differences, pvalue | W = 2,849; p = 0.043 |
| DSM‐IV hyperactivity domain | |
| Raw score, mean (SD) | 3.22 (5.76) |
| Range | 0–23 |
| Wilcoxon test sex differences, pvalue | W = 2,751; p = 0.0014 |
Note. SDQ: Strengths and Difficulties Questionnaire; ADHD: attention‐deficit/hyperactivity disorder; SD: standard deviation; IG: Imaging Genetic sample.