OBJECTIVES: Previous research has been inconclusive whether attention-
deficit/hyperactivity disorder (ADHD), when comorbid with disruptive disorders (oppositional …

OBJECTIVE: To examine ratings and objective measures of attention-deficit/hyperactivity
disorder (ADHD) symptoms to assess whether ADHD children with and without comorbid …

OBJECTIVE: Since the introduction of DSM-III/III-R, clinicians and investigators have shown
increasing interest in the study of conditions comorbid with attention-deficit hyperactivity …

OBJECTIVE: To study externalizing and internalizing comorbidity patterns in 6− to 12-year-
old children with attention-deficit/hyperactivity disorder (ADHD) combined subtype (n= 27) …

In recent years, evidence has been accumulating regarding high levels of comorbidity
between attention-deficit/hyperactivity disorder (ADHD) and a number of disorders, including …

Background: Previous cross-sectional data showed that children and adolescents with
attention-deficit hyperactivity disorder (ADHD) are at increased risk of comorbid conduct …

Abstract Purpose of the Review In this review, we focus on overlapping features of ADHD
and anxiety disorders, and will discuss how an anxiety disorder comorbidity leads to …

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 …

Initial moderator analyses in the Multimodal Treatment Study of Children with ADHD (MTA)
suggested that child anxiety ascertained by parent report on the Diagnostic Interview …

Attention-deficit/hyperactivity disorder (ADHD) has been noted to be comorbid with a variety
of psychiatric disorders. These include oppositional defiant and conduct disorders, as well …