Objective: To investigate comorbidity of oppositional-defiant disorder (ODD), conduct
disorder (CD), anxiety, and depression and to investigate the impaired social and academic …

This study investigated whether problem behaviors, typically associated with a clinical
diagnosis of ADHD, would also be associated with subclinical ADHD symptoms within a non …

Background: Although ADHD does occur as a single disorder in a minority of diagnosed
individuals, it is generally comorbid with other behavioural and emotional disorders. The …

Abstract Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the most common
behavioral disorders diagnosed within childhood and affects approximately 9.5% of 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 …

Childhood oppositional defiant disorder (ODD) has commonly been thought to increase the
risk of conduct disorder (CD) in late childhood and adolescence. However, symptoms of CD …

Gender differences in self-esteem for adolescents with attention deficit hyperactivity disorder
(ADHD) and with comorbid oppositional defiant disorder (ODD) were investigated for 94 …

Objective To investigate the impact of increasing levels of inattention, hyperactivity/
impulsivity, and oppositional/defiant behaviors at age 7 years on academic achievement at …

Few studies have explored the contribution of family and school factors to the association
between ADHD symptoms and lower education. Possibly, having more ADHD symptoms …

Objective: Oppositional defiant disorder (ODD) is the most common comorbid condition in
childhood ADHD. This trial was prospectively designed to explore ODD symptoms in ADHD …