Attention deficit hyperactivity disorder (ADHD) is among the most common psychiatric disorders of childhood that persists into adulthood in the majority of cases. The evidence on persistence poses several difficulties for adult psychiatry considering the lack of expertise for diagnostic assessment, limited treatment options and patient facilities across Europe. The European Network Adult ADHD, founded in 2003, aims to increase awareness of this disorder and improve knowledge and patient care for adults with ADHD across Europe. This Consensus Statement is one of the actions taken by the European Network Adult ADHD in order to support the clinician with research evidence and clinical experience from 18 European countries in which ADHD in adults is recognised and treated. Besides information on the genetics and neurobiology of ADHD, three major questions are addressed in this statement: (1) What is the clinical picture of ADHD in adults? (2) How can ADHD in adults be properly diagnosed? (3) How should ADHD in adults be effectively treated? ADHD often presents as an impairing lifelong condition in adults, yet it is currently underdiagnosed and treated in many European countries, leading to ineffective treatment and higher costs of illness. Expertise in diagnostic assessment and treatment of ADHD in adults must increase in psychiatry. Instruments for screening and diagnosis of ADHD in adults are available and appropriate treatments exist, although more research is needed in this age group.

/pdf/european-consensus-statement-on-diagnosis-and-treatment-of-580g3afwl5.pdf

European consensus statement on diagnosis and treatment of adult ADHD: The European Network Adult ADHD.

Prevalence of attention-deficit hyperactivity disorder in substance use disorder patients: A meta-analysis and meta-regression analysis

The adult form of attention deficit/hyperactivity disorder (aADHD) has a prevalence of up to 5% and is the most severe long-term outcome of this common neurodevelopmental disorder. Family studies in clinical samples suggest an increased familial liability for aADHD compared with childhood ADHD (cADHD), whereas twin studies based on self-rated symptoms in adult population samples show moderate heritability estimates of 30–40%. However, using multiple sources of information, the heritability of clinically diagnosed aADHD and cADHD is very similar. Results of candidate gene as well as genome-wide molecular genetic studies in aADHD samples implicate some of the same genes involved in ADHD in children, although in some cases different alleles and different genes may be responsible for adult versus childhood ADHD. Linkage studies have been successful in identifying loci for aADHD and led to the identification of LPHN3 and CDH13 as novel genes associated with ADHD across the lifespan. In addition, studies of rare genetic variants have identified probable causative mutations for aADHD. Use of endophenotypes based on neuropsychology and neuroimaging, as well as next-generation genome analysis and improved statistical and bioinformatic analysis methods hold the promise of identifying additional genetic variants involved in disease etiology. Large, international collaborations have paved the way for well-powered studies. Progress in identifying aADHD risk genes may provide us with tools for the prediction of disease progression in the clinic and better treatment, and ultimately may help to prevent persistence of ADHD into adulthood.

/pdf/the-genetics-of-attention-deficit-hyperactivity-disorder-in-32k8fhbczi.pdf

The genetics of attention deficit/hyperactivity disorder in adults, a review

Validity of the Adult ADHD Self-Report Scale (ASRS) as a screener for adult ADHD in treatment seeking substance use disorder patients

Background: Adult attention deficit–hyperactivity disorder (ADHD) is underdiagnosed in the primary care setting despite 3% to 6% of adults having ADHD-like symptoms. The Adult ADHD Self-Report Scale-V1.1 (ASRS-V1.1) is a validated, 6-question screen for adult ADHD. Our purpose was to analyze this tool for evaluating patients in a busy primary care setting. Methods: The ASRS-V1.1 was administered to patients in 8 busy primary care practices. All with a positive score and a random sample of those with a negative screening score were asked to complete the Conners9 Adult ADHD Rating Scale Self Report–Short Version. Each was administered within the clinic setting during the same session. Sensitivity, specificity, and positive/negative predictive values were calculated. Data were evaluated for site-specific differences. Results: It took an average of 54.3 seconds (range, 22–252 seconds) to complete the ASRS-V1.1. There was an inconsistency-adjusted sensitivity of 1.0, a specificity of 0.71, a positive predictive value of 0.52, and a negative predictive value of 1.0. No site-specific differences were found. Conclusions: Because of its ease of use, short time to administer, high sensitivity, and moderate specificity, the ASRS-V1.1 is an effective adult ADHD screening to guide further evaluations for ADHD.

The Adult ADHD Self-Report Scale for Screening for Adult Attention Deficit–Hyperactivity Disorder (ADHD)

Aim. Diagnosing attention deficit/hyperactivity disorder (ADHD) in patients with substance use disorder (SUD) is a complicated process in which a screening tool may be useful. We analyzed the ASRS-v1.1 validity in patients with SUD, considering the addiction severity and co-morbidity with depressive disorders, antisocial and borderline personality. Methods. Eighty outpatients with SUD were evaluated with the following instruments: ASRS-v1.1, CAAD-II, EuropASI, SCID-I, SCID-II. A factor analysis was performed with Varimax rotation to determine the structure of the intercorrelations among the items. Accuracy of ASRS-v1.1 was also analyzed. Results. The diagnostic interview CAADID used as a gold standard indicated that 20% (95% confidence interval [CI]: 11-29) meet the criteria for ADHD. The ASRS-v1.1 factor structure is marked by two factors related to inattention and hyperactivity / impulsivity that account for 67.7% of the variance. ASRS-v1.1, with a 4 cut-off, showed an 87.5% sensitivity and 68.6% specificity. Conclusions. ASRS-v1.1 is a simple screening tool that is useful and has acceptable validity for the identification of ADHD among addicted patients.

Adult ADHD Self-Report Scale (ASRS-v1.1) symptom checklist in patients with substance use disorders.

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Adult ADHD Self-Report Scale (ASRS-v1.1) symptom checklist in patients with substance use disorders.