Table 1.

Demographic information of each cohort in the current study.

	NYU		PKU1		PKU2		PKU3
	ADHD	TDC	ADHD	TDC	ADHD	TDC	ADHD	TDC
N	29	29	15	15	28	28	19	19
Gender (male)	29	29	15	15	28	28	19	19
Age (years)	12.1 ± 2.9	12.2 ± 2.8	11.2 ± 2.3	11.6 ± 1.5	12.7 ± 1.7	11.7 ± 1.8	13.2 ± 1.3	13.3 ± 1.0
IQ	106.1 ± 16.0	115.3 ± 14.3	101.7 ± 12.4	123.0 ± 14.2	111.5 ± 12.7	121.6 ± 12.2	102.7 ± 10.4	111.7 ± 12.7
Subtype (C/I/H)	19/10/0	–	9/6/0	–	16/12/0	–	12/7/0	–

Data are presented as mean ± SD. C, ADHD –Combined; I, ADHD –Inattentive; H, ADHD -Hyperactive/Impulsive.