Abstract
Objective: To examine ratings and objective measures of attention-deficit/hyperactivity disorder (ADHD) symptoms to assess whether ADHD children with add without comorbid conditions have equally high levels of core symptoms and whether symptom profiles differ as a function of comorbidity and gender. Method: Four hundred ninety-eight children from the NIMH Collaborative Multisite Multimodal Treatment Study of Children With Attention-Deficit/Hyperactivity Disorder (MTA) were divided into comorbid groups based on the parent Diagnostic Interview Schedule for. Children and assessed via parents' and teachers' Swanson, Nolan, and Pelham (SNAP) ratings and a continuous performance test (CPT). Comorbidity and gender effects were examined using analyses of covariance controlled for age and site. Results: CPT inattention, impulsivity, and dyscontrol errors were high in all ADHD groups. Children with ADHD + oppositional defiant or conduct disorder were rated as more impulsive than inattentive, while children with ADHD + anxiety disorders (ANX) were relatively more inattentive than impulsive. Girls were less impaired than boys on most ratings and several CPT indices, particularly impulsivity, and girls with ADHD + ANX made fewer CPT impulsivity errors than girls with ADHD-only. Conclusions: Children with ADHD have high levels of core symptoms as measured by rating scales and CPT, irrespective of comorbidity. However, there are important differences in symptomatology as a function of comorbidity and gender.
Original language | English (US) |
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Pages (from-to) | 137-146 |
Number of pages | 10 |
Journal | Journal of the American Academy of Child and Adolescent Psychiatry |
Volume | 40 |
Issue number | 2 |
DOIs | |
State | Published - 2001 |
Keywords
- Attention-deficit/hyperactivity disorder
- Comorbidity
- Gender
- Impulsivity
ASJC Scopus subject areas
- Developmental and Educational Psychology
- Psychiatry and Mental health