Table 1.

Summary of patient characteristics

Characteristic	Atomoxetine	Methylphenidate	Total
Age mean (SD)
Gender n(%)
Male	1030 (79.8)	973(75.4)	2003(77.6)
Female	260(20.2)	317(25.6)	577 (22.4)
Ethnic origin
Caucasian	871 (61.8)	946 (72.7)	1817(67.0)
Others	539 (38.2)	355 (27.3)	894(33.0)
ADHD subtype
Hyperactive/impulsive	19 (2.3)	11 (2.0)	30 (2.2)
Inattentive	191 (23.3)	152 (28.3)	343(25.3)
combined	609 (74.4)	374 (69.7)	983 (72.5)
Prior stimulant use- yes	544 (55.0)	528 (41.4)	1072 (47.4)
Comorbid oppositional defiant disorder	273 (39.0)	134 (31.1)	407(36.0)