Figure 1

Problem behaviours and peer victimization in diagnostic groups. CBCL subscale scores for children from the ADHD-C, ADHD-I, and TD groups. Children from the ADHD-C group had significantly higher aggressive behaviour, rule breaking behaviour, social problems, and peer victimization scores compared to the TD group. The ADHD-C group also had significantly higher aggressive behaviour, rule breaking behaviour, social problems and peer victimization scores compared to the ADHD-I group. Children and adolescents in the ADHD-I group had significantly higher aggressive behaviour scores than the TD group. None of the groups significantly differed on the withdrawn scores. Scores represent the estimated marginal means, adjusted for age, sex, study site, and SES. P values are Bonferroni corrected (pairwise) for multiple comparisons. Error bars reflect standard error. *p < 0.001.