Table 2.
Descriptive statistics of study variables.
| HC (N = 100) | PC (N = 100) | IED (N = 100) | ||||
|---|---|---|---|---|---|---|
|
|
|
|
||||
| Mean | SD | Mean | SD | Mean | SD | |
| Demographic statistics | ||||||
| Gender (% males) | 50 | 42 | 40 | |||
| % White | 69 | 66 | 53 | |||
| % African American | 15 | 23 | 31 | |||
| % Other | 16 | 11 | 16 | |||
| Age | 33.4 | 12.9 | 36.2 | 11.7 | 37.3 | 10.9 |
| SES | 46.6 | 11.2 | 39.7a | 14.0 | 37.3b | 13.8 |
| Global and behavioral measures | ||||||
| Global assessment of function (GAF) | 84.7a | 5.7 | 65.2a | 11.2 | 55.1b | 8.8 |
| Life history of aggression (LHA) | 4.8a | 3.3 | 8.6a | 4.5 | 18.2b | 4.3 |
| Callous/unemotional psychopathy (PCL-SV) | 0.4a | 0.9 | 1.5b | 1.8 | 2.8c | 2.7 |
| BDI depression (BDI-II) | 4.4 | 11.6 | 9.9a | 10.9 | 15.4b | 11.1 |
| Childhood trauma history (CTQ) | 26.4 | 7.0 | 38.2a | 14.6 | 46.8b | 17.6 |
Note. Gobal GAF = Global Assessment of Function. EPQ = Eysenck Personality Questionnaires. LHA = Life History of Aggression. Between-group differences in each variable were examined using one-way ANOVAs or chi-square tests; groups with different superscripts are significantly different from each other.
a
HC significantly different from PC
b
PC significantly different from IED
c
IED significantly different from PC and HC.