. Author manuscript; available in PMC: 2023 Jun 14.

Published in final edited form as: Aggress Behav. 2015 Jan;41(1):25–33. doi: 10.1002/ab.21566

Table 3.

Number and Percent of Participants with Lifetime Psychopathology as a Function of Diagnostic Group and Mean Number of Diagnoses by Group (n = 270)

Diagnoses	PC (n = 68)	IED (n = 202)	χ² / t-value
Any non-IED (%)	68 (100%)	196 (98%)	1.72
Mood Disorder (%)	23 (34%)	118 (58%)	12.31^***
Anxiety Disorders (%)	14 (21%)	73 (36%)	5.63^**
Substance Disorders (%)	18 (27%)	85 (42%)	5.25^*
Personality Disorders (%)	26 (38%)	128 (63%)	13.43^***
Mean Number of Diagnoses (SD)	1.58 (1.72)	3.00 (2.49)	4.33^*

Note: PC = Psychiatric Control; IED = Intermittent Explosive Disorder;

p < .05;

^**

p < .01;

^***

p < .001