Table 1.

Demographic, clinical, and brain size properties of all participants

Control (n = 30)ADHD (n = 30)p value
Age (years)10.3 ± 1.6 (8–14)10.3 ± 1.9 (8–14)0.94
IQ121.7 ± 14.0 (84–144)107.1 ± 14.4 (85–142)<0.001**
Inattention scores17.5 ± 3.9 (9–26)27.5 ± 3.9 (20–35)<0.001**
Impulsivity scores15.6 ± 3.9 (9–24)23.9 ± 10.0 (12–59)<0.001**
Total intracranial volume (L)1.40 ± 0.1 (1.18–1.62)1.34 ± 0.1 (1.13–1.52)0.044*

  • All controls and ADHD patients were boys and were matched for age. Values are mean ± SD (range). All variables were compared between groups with two-sample t test.

  • ↵*p < 0.05;

  • ↵**p < 0.001.