Table 1.

Study population characteristics

Study population characteristics		n = 629	%
Age groups	School-age (6–9 years)	550	87.4
	Adolescents (10–12 years)	79	12.6
Gender	Female	82	13.0
	Male	547	87.0
ADHD subtypes	Combined subtype	391	62.2
	Inattentive subtype	135	21.5
	Hyperactive–impulsive subtype	103	16.3
ADHD comorbidities		421	66.9
Type of ADHD comorbidities	Learning disorder	94	14.9
	Behavioral disorder	49	7.8
	Oppositional defiant disorder	199	31.6
	Anxiety–depression disorder	72	11.4
	Intellectual disability	49	7.8
	Tic disorder	128	20.3
	Autism spectrum disorder	30	4.8
At least two ADHD comorbidities		180	28.6

ADHD attention deficit hyperactivity disorder