Objective: ADHD and ODD are commonly co-occurring, but often studied individually. This
study evaluated common trajectories of these disorders and explored how they co-develop …

Objective: A better understanding of the long-term scope and impact of the comorbidity with
oppositional defiant disorder (ODD) in girls with attention-deficit/hyperactivity disorder …

Objective: Patterns of co-occurrence between ADHD, Oppositional Defiant Disorder (ODD),
and Conduct Disorder (CD) were examined in a sample of non-referred preschool children …

Attention-deficit–hyperactivity disorder (ADHD) is a common neurodevelopmental disorder
with a high degree of associated behavioural problems. In order to study characteristics of …

OBJECTIVE: To examine the stability and change in oppositional defiant disorder (ODD)
with onset among preschool children in a pediatric sample. METHOD: A total of 510 children …

Objective A better understanding of the long-term scope and impact of the comorbidity with
oppositional defiant disorder (ODD) in girls with attention-deficit/hyperactivity disorder …

Objective: Studies on comorbidity in children diagnosed with ADHD have relied more on
parent/teacher reports instead of self-reported data and have focused on the frequency of …

OBJECTIVE: To examine precursors of adolescent conduct disorder (CD) in children with
attention-deficit/hyperactivity disorder (ADHD), investigating the significance of childhood …

Objective: To determine if there are differences In the clinical expression and correlates of
ADHD between children and adolescents. Method: Subjects were 811 boys and girls aged 6 …

Objective Although childhood ADHD is a risk factor for internalizing problems, it consists of
separable inattention and hyperactivity dimensions that differentially predict outcomes …