Among two large, independent samples of girls with attention-deficit/hyperactivity disorder
(ADHD), we examined associations between specific (maternal gestational smoking and …

OBJECTIVE: To meta-analytically summarize rates of comorbid internalizing (anxiety,
depression) and externalizing (oppositional defiant disorder [ODD], conduct disorder [CD]) …

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 investigate whether the presence of comorbid oppositional defiant disorder
(ODD) or conduct disorder (CD) alters the correlates of attention-deficit hyperactivity disorder …

Background: The frequent comorbidity between attention-deficit/hyperactivity disorder
(ADHD) and conduct disorder (CD) raises the possibility that ADHD+ CD is a distinct and …

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 …

This cross-sectional study evaluated the impacts of maternal and paternal affective
temperament traits, maternal and paternal ADHD, depression and anxiety symptoms …

The present study examined trajectories of individual Diagnostic and Statistical Manual of
Mental Disorders (4th ed.) symptoms of attention-deficit/hyperactivity disorder (ADHD) and …

OBJECTIVE: To test the external validity of the dimensions and subtypes of DSM-IV attention-
deficit/hyperactivity disorder (ADHD) by assessing the prevalence of psychiatric comorbidity …

Introduction and objective: Attention-deficit/hyperactivity disorder (ADHD) is a
neurodevelopmental disorder characterized by age-inappropriate levels of inattention …