Table 2.

Descriptive statistics for predictor variables

				History
Predictor	N	M	SD	None (%-0)	Some (%-1)	Extensive (%-2)
Risk analysis measure
History of aggression
Towards adults	149	1.02	.73	25.5	47.0	24.8
Towards peers	149	.99	.72	26.2	49.0	24.8
Property damage	149	.93	.75	31.5	44.3	24.2
Against animals	149	.15	.46	88.6	7.4	4.0
Sexual aggression	149	.23	.52	81.2	14.1	4.7
Weapon use	149	.16	.39	84.6	14.8	.7
Against self	149	.68	.68	43.6	44.3	12.1
Suicide attempts	149	.21	.44	80.5	18.1	1.3
Family risk
Family history of mental illness	149	.83	.80	41.6	33.6	24.8
Family history of criminal behavior	149	.37	.61	69.8	23.5	6.7
History of maltreatment				None (%-0)	Single incident (%-1)	Chronic (%-2)
Physical abuse	149	.45	.79	73.8	7.4	18.8
Sexual abuse	149	.38	.71	75.8	10.7	13.4
Emotional abuse	149	.63	.88	63.8	9.4	26.8
Neglect	149	.64	.91	65.8	4.7	29.5
Exposure to violence				None (%-0)	Single incident (%-1)	Chronic (%-2)
Domestic violence	149	.58	.88	68.5	5.4	26.2
Peer victimization	149	.42	.76	75.2	8.1	16.8
Neighborhood violence	149	.36	.74	79.9	4.7	15.4
Additional intake variables
	N	M	SD	Range
Body mass index	143	25	7	13.6- 47.3
Previous placements
Psychiatric hospitalization	144	2.60	3.51	0-17
Residential treatment	144	.33	.75	0-4
Foster care	144	.51	1.00	0-5
Intellectual functioning
WISC Verbal Comprehension Index	66	82.98	14.39	50-112
WISC Perceptual Reasoning Index	66	82.97	15.82	49-118
WISC Working Memory Index	60	79.03	16.64	50-129
WISC Processing Speed Index	61	75.16	15.01	50-115
GAF at intake	149	23.62	2.06	15-40
Primary DSM-IV diagnosis	N	% of sample
Bipolar disorder	149	48.3
Other mood disorder	149	29.5
Thought or psychotic disorder	149	8.7
Disruptive behavior disorder	149	5.4
Other disorder	149	8.0