Table 1. Demographic and Diagnostic Information.
| Healthy controls (N=40) | Psychiatric controls (n=50) | Intermittent explosive disorder (N=42) | P-value | |
|---|---|---|---|---|
| Age (years) | 30.2±7.9 | 31.0±8.7 | 34.3±9.0 | =0.07a |
| Gender (M/F) | 13/17 | 25/25 | 22/22 | NSb |
| Race (White/Non-White) | 30/10 | 39/11 | 17/25 | <0.001b |
| SES class (I/II–IV/V) | 3/33/3 | 16/32/2 | 3/35/4 | =0.008b |
| GAF score | 83.25±4.9 | 64.20±10.9 | 55.58±8.4 | <0.001c |
| Ever received outpatient treatment | 7 | 26 | 26 | 0.177d |
| Ever hospitalized | 0 | 4 | 10 | 0.576d |
| MDD | 0 | 7 | =0.003 | |
| PTSD | 1 | 3 | =0.228 | |
| Panic | 2 | 0 | =0.190 | |
| GAD | 4 | 0 | =0.061 | |
| Antisocial | C | 8 | <0.001 | |
| Borderline | 4 | 18 | <0.001 | |
| Narcissistic | 1 | 6 | 0.02 | |
| Histrionic | 1 | 2 | 0.21 | |
| Avoidant | 21 | 4 | 0.001 | |
| Dependent | 2 | |||
| OCPD | 7 | 9 | 0.17 | |
| PD NOS | 7 | 12 | 0.112 | |
| Mean PCL-SV | 1.23±1.6 | 5.7±6.1 | 8.36±5.6 | <0.001e |
a
Significant after ANOVA. The post hoc test (Tukey's HSD: p<0.05) for age: HC=PC=IED.
b
Significant after χ2 test.
c
Significant after ANOVA. The post hoc tests reveal IED>PC>HC.
d
Nonsignificant after χ2 comparing the IED with PC group.
e
Significant after ANOVA. The post hoc tests reveal that the only significant differences are IED>HC and PC>HC.