Table 1.

Demographic and Clinical Characteristics of Children With ODD/CD and Psychopathic Traits, Children With ADHD Only, and Healthy Controls

	Patients
Measure	Psychopathic Traits and CD/ODD (n=14)	ADHD (n=14)	Controls (n=14)
Age, y, mean (SD)	13.8 (1.3)	13.4 (2.6)	13.6 (2.2)
IQ, mean (SD)	101 (10.6)	112 (12.3)	103 (13.6)
Male, No. (%)	9 (64)	10 (71)	9 (64)
DSM-IV diagnoses (current), No. (%)
ADHD	10 (71)	14 (100)	0
CD	6 (43)	0	0
ODD	8 (57)	0	0
Pediatric psychopathy rating scale scores
Antisocial Process	29 (3.8)	9 (5.5)	7 (4.5)
Screening Device,3 mean (SD) [range]	[21-35]	[3-18]	[1-15]
Psychopathy Checklist:	24 (3.5)
Youth Version,46 mean (SD)
Response Reversal Task
Percentage of Errors, No. (%)
Acquisition	4 (11)	4 (10)	3 (8)
Reversal	10 (27)	8 (24)	7 (23)

Abbreviations: ADHD, attention-deficit/hyperactivity disorder; CD, conduct disorder; ODD, oppositional defiant disorder.