Table 1.
Sample characteristics.
| Measure | Neither disorder (ND; n = 17) | AD-only group (n = 30) | CD + AD group (n = 23) | Statistics |
|---|---|---|---|---|
| Mean age (SD) | 24.78 (4.33) | 25.23 (2.92) | 23.71 (2.92) | F[2,67] = 0.954, p = 0.390 |
| Mean performance IQ (SD) | 11.24 (2.81) | 10.73 (2.85) | 9.13 (2.98) | F[2,66] = 3.01, p = 0.056 |
| Mean verbal IQ (SD) | 10.00 (1.90) | 9.23 (2.34) | 7.86 (2.66) | F[2,66] = 4.24, p = 0.019 Post-hoc: ND > CD + AD |
| Mean BAI score (SD) | 4.88 (4.30) | 5.93 (4.76) | 11.04 (10.66) | F[2,67] = 4.64, p = 0.013 Post-hoc: CD + AD > (ND&AD) |
| % Any recent aggressive behavior | 23.5% | 23.3% | 34.8% | FET, p = 0.585 |
| % Lifetime major depression | 11.8% | 70.0% | 56.5% | FET, p < 0.001 |
| % Lifetime alcohol dependence | 23.5% | 23.3% | 39.1% | FET, p = 0.443 |
| % Lifetime drug dependence | 4.9% | 23.3% | 43.5% | FET, p = 0.027 |
| % Maltreatment before age 16† | 0% | 19% | 50% | FET, p = 0.0469 |
FET: Fisher’s exact test. †Maltreatment data omitted case-wise for n = 3 in AD-only and n = 5 in CD + AD group due to being inconclusive as to what age maltreatment occurred.