Objectives: The aims of the present study were to examine the current psychiatric
comorbidity among children and adolescents with and without persistent attention-deficit …

Objective: The aim of the present study was to examine changes of attention-deficit–
hyperactivity disorder (ADHD) symptoms and psychiatric comorbidities at adolescence, and …

BackgroundADHD in childhood is associated with development of negative psychosocial
and behavioural outcomes in adults. Yet, relatively little is known about which childhood and …

BACKGROUND: Although it is known that childhood attention-deficit/hyperactivity disorder
(ADHD) often persists into adulthood, childhood predictors of this persistence have not been …

Objective: The aim of the study was to evaluate associations between ADHD and comorbid
psychiatric disorders among adults from a population-based birth cohort. Method …

Objective: We aimed to provide an overview of the Massachusetts General Hospital (MGH)
Longitudinal Studies of ADHD. Methods: We evaluated and followed samples of boys and …

OBJECTIVE: The purpose of the study was to estimate the prevalence of attention-
deficit/hyperactivity disorder (ADHD) and its clinical characteristics in the Northern Finland …

Objective: The aim of the present study was to examine the effect of comorbid oppositional
defiant disorder (ODD) and conduct disorder (CD) on (i) symptom levels in attention-deficit …

This study examined patterns of comorbid/associated diagnoses and associated problems
in a population sample of children with and without DSM-III-R attention-deficit hyperactivity …

The objective of the study was to investigate the comorbid problems and the psychosocial
profile of Attention Deficit Hyperactivity Disorder (ADHD) adults. It was hypothesised that …