Table 1. Characteristics of Included Studies.

Study	N	Mean age, y	Sex (%M)	Design	Length of Treatment	JADAD	Medication	Mean dose
Arnold et al. (2006)	16	9.3	75	crossover	6 weeks	4	ATOM	44.2 mg/day
Harfterkamp et al. (2012)	97	10.0	86	parallel	10 weeks		ATOM	1.2 mg/kg.day
Ghuman et al. (2009)	12	4.8	93	crossover	2 weeks	3	MPH	.4 mg/kg/dose
Handen et al. (2000)	13	7.4	77	crossover	1 week	2	MPH	.45 mg/kg/dose
Quintana et al. (1995)	10	8.5	60	crossover	2 weeks	3	MPH	.40 mg/kg/dose
RUPP (2005)	66	7.5	89	crossover	1 week	5	MPH	.29 mg/kg/dose
Jaselskis et al. (1992)	8	8.1	100	crossover	6 weeks	2	α-2 agonist	.15-.20 mg/day

Key: N – sample size; y – years; %M – percent male; MPH – methylphenidate; ATOM – atomoxetine; α-2 agonist (clonidine); mg/kg/dose – milligrams per kilograms per does; mg/day – milligrams per day