Table 1. Sample characteristics and clinical measures.

	ADHD		Relatives		Controls		F (2,57)	P
	Mean	s.d.	Mean	s.d.	Mean	s.d.
Age	32.20	10.31	38.85	15.31	32.55	5.80	2.26	0.115
Gender, % female	15		50		35		5.55	0.062a
NART full IQ	115.26	6.15	116.59	5.28	119.49	3.27	3.68	0.031b
BAARS current total symptoms	36.15	12.39	10.00	7.38	5.20	4.29	73.50	<0.001b,c
BAARS current hyperactive/impulsive	18.40	6.98	5.25	4.13	2.50	2.50	60.11	<0.001b,c,d
BAARS current inattentive symptoms	17.75	5.96	4.75	3.89	2.70	2.77	68.44	<0.001b,c
BAARS childhood total symptoms	41.35	11.93	14.20	10.28	4.85	6.65	73.78	<0.001b,c,d
BAARS childhood hyperactive/impulsive	20.65	6.23	6.60	4.45	2.15	3.44	79.45	<0.001b,c,d
BAARS childhood inattentive symptoms	20.70	6.04	7.60	6.23	2.70	4.07	56.57	<0.001b,c,d

^aχ².

^bThe ADHD group differs significantly from the controls.

^cThe ADHD group differs significantly from the relatives.

^dRelatives differ significantly from controls.