Authors: Pieter FA de Nijs Robert F Ferdinand Frank C Verhulst
Publish Date: 2006/09/13
Volume: 16, Issue: 1, Pages: 25-32
Abstract
The aim of this study was to investigate which homogeneous groups according to teacher reports of attentiondeficit/hyperactivity ADH Problems on the Teacher’s Report Form TRF can be identified in a referred sample n = 4422 age = 6–18 years mean age = 99 years 66 boys 34 girls Latent class analysis LCA was conducted on ADH Problems In addition comorbidity levels in the different ADH Problems groups were compared LCA yielded three different groups of children and adolescents with both Inattention and hyperactivity–impulsivity and one group with high scores on Inattention but low scores on hyperactivity–impulsivity A group of patients with predominantly hyperactivity and impulsivity was not found Individuals in groups with higher levels of ADH Problems had significantly higher levels of oppositional defiant OD and conduct problems and although to a lesser extent significantly higher levels of affective and anxiety problems than individuals in groups with lower levels of ADH Problems It may not be useful to discern the hyperactive–impulsive type of ADHD
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