Table 1.
Demographic and clinical characteristics of the participants (mean ± S.D).
| Conduct disorder (n = 27) | Healthy control (n = 29) | F value | P value | |
|---|---|---|---|---|
| Age | 14.1 ± 0.8 | 14.4 ± 0.7 | 2.36 | 0.130 |
| IQ | 104 ± 11 | 106 ± 6 | 0.78 | 0.381 |
| Conduct problems (SDQ) | 4.7 ± 1.7 | 2.2 ± 1.2 | 16.66 | <0.001** |
| Total problems (SDQ) | 16.7 ± 5.7 | 10.9 ± 5.1 | 13.92 | <0.001** |
| Impulsivity (APSD) | 5.0 ± 2.0 | 3.0 ± 1.5 | 14.40 | <0.001** |
| Callous-unemotional traits (APSD) | 5.8 ± 2.2 | 3.8 ± 1.5 | 5.42 | 0.024* |
| Total score (APSD) | 16.0 ± 3.6 | 9.5 ± 2.0 | 34.20 | <0.001** |
SDQ: Strength and Difficulties Questionnaire; APSD: the Antisocial Process Screening Device; *P = 0.05; **P = 0.01.