Attention deficit/hyperactivity disorder (ADHD) and tic disorders (TD) commonly co-occur. Clarifying the psychiatric comorbidities, executive functions and social adjustment difficulties in children and adolescents of ADHD with and without TD is informative to understand the developmental psychopathology and to identify their specific clinical needs. This matched case-control study compared thr...

Research in Attention-Deficit/Hyperactivity Disorder (ADHD) generally utilizes clinical samples or children with comorbid psychiatric diagnoses. Findings indicated that children with ADHD experience academic underachievement and poor performance on measures of response inhibition (RI). Less is known, about the neuropsychological profile of typically developing children with ADHD. The aim of the...

OBJECTIVE This study sought to explore how anxiety impacts college students with ADHD, especially with regard to cognitive functioning. METHOD 473 college students with ADHD and a control group of 200 college students without ADHD completed self-report measures of anxiety, ADHD symptomatology and tests of cognitive functioning. RESULTS Students with ADHD reported significantly more anxiety ...

BACKGROUND Many studies have reported a higher prevalence of Attention-Deficit/Hyperactivity Disorder (ADHD) among disadvantaged populations, but few have considered how parental history of ADHD might modify that relationship. We evaluated whether the prevalence of ADHD varies by socioeconomic status (SES) and parental history of ADHD in a population-sample of elementary school children age 6-1...

BACKGROUND ADHD in childhood is associated with development of negative psychosocial and behavioural outcomes in adults. Yet, relatively little is known about which childhood and adulthood factors are predictive of these outcomes and could be targets for effective interventions. To date follow-up studies have largely used clinical samples from the United States with children ascertained at base...

OBJECTIVE To estimate the prevalence of adult ADHD diagnosis and treatment in U.S. Medicaid beneficiaries. METHOD Using outpatient, inpatient, and pharmacy billing records for patients eligible for Medicaid fee-for-service benefits within 29 states from 1999 to 2010, we estimated the annual prevalence of ADHD diagnosis and treatment. RESULTS The prevalence of ADHD diagnosis increased from 2...

OBJECTIVE ADHD is common in patients with alcohol dependence, but prevalence results are inconsistent. We investigated ADHD prevalence in a complex design to avoid over- or underdiagnosing. METHOD Patients with alcohol dependence starting long-term residential treatment were included. A structured interview (Diagnostic Interview for ADHD in Adults [DIVA]) was conducted on all patients. DIVA r...

The purpose of this study was to examine the possible additive neurocognitive deficits in adults with both attention-deficit/hyperactivity disorder (ADHD) and serious depressive symptoms. Participants were 54 university students who completed a psycho-educational assessment. Three groups were examined: a group with comorbid ADHD and elevated depressive symptoms (ADHD + DEP; N = 18); a group wit...

OBJECTIVE Sleep problems were analyzed in children with ADHD (Attention-deficit hyperactivity disorder). METHODS Scales were completed by parents of 135 control children and 681 children with ADHD combined type (ADHD-C) or inattentive type (ADHD-I) with or without comorbid oppositional defiant disorder (ODD), anxiety, or depression. RESULTS Children with ADHD-I alone had the fewest sleep pr...