TABLE 1.

Descriptive statistics (mean ± standard deviation) of the demographic and diagnostic information of participants in each group.

Group	N	Male: Female (Sex ratio)	Age (years)	SNAP-IV
				Attention deficit	Hyperactivity/impulsivity
ADHD	39	29:10 (2.9:1)	10.6 ± 1.9	6.4 ± 1.8	4.6 ± 2.5
Subthreshold ADHD	34	24:10 (2.4:10)	11.0 ± 1.9	3.4 ± 1.3	2.2 ± 1.7
TD	36	17:19 (0.9:1)	11.6 ± 1.5	0.2 ± 0.4	0.1 ± 0.4

SNAP-IV, number of symptoms reported in each sub-scale of the SNAP-IV.