title: The International ADHD in Substance Use Disorders Prevalence (IASP) study: background, methods and study population.
abstract: Attention deficit/hyperactivity disorder (ADHD) is an increasingly recognized comorbid condition in subjects with substance use disorders (SUDs). This paper describes the methods and study population of the International ADHD in Substance Use Disorders Prevalence (IASP) study. Objectives of the IASP are to determine the prevalence of ADHD in adult treatment seeking patients with SUD in different countries and SUD populations, determine the reliability and validity of the Adult ADHD Self-report Scale V 1.1 (ASRS) as ADHD screening instrument in SUD populations, investigate the comorbidity profile of SUD patients with and without ADHD, compare risk factors and protective factors in SUD patients with and without a comorbid diagnosis of ADHD, and increase our knowledge about the relationship between ADHD and the onset and course of SUD. In this cross-sectional, multi-centre two stage study, subjects were screened for ADHD with the ASRS, diagnosed with the Conner's Adult ADHD Diagnostic Interview for DSM-IV (CAADID), and evaluated for SUD, major depression, bipolar disorder, anti social personality disorder and borderline personality disorder. Three thousand five hundred and fifty-eight subjects from 10 countries were included. Of these 40.9% screened positive for ADHD. This is the largest international study on this population evaluating ADHD and comorbid disorders.
authors.affiliation: Trimbos-instituut and ICASA Foundation, Utrecht, The Netherlands; Amsterdam Institute for Addiction research, Department of Psychiatry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
authors.forename: Geurt
authors.initials: G
authors.lastname: van de Glind
authors.forename: Katelijne
authors.initials: K
authors.lastname: Van Emmerik-van Oortmerssen
authors.forename: Pieter Jan
authors.initials: PJ
authors.lastname: Carpentier
authors.forename: Frances R
authors.initials: FR
authors.lastname: Levin
authors.forename: Maarten W J
authors.initials: MW
authors.lastname: Koeter
authors.forename: Csaba
authors.initials: C
authors.lastname: Barta
authors.forename: Sharlene
authors.initials: S
authors.lastname: Kaye
authors.forename: Arvid
authors.initials: A
authors.lastname: Skutle
authors.forename: Johan
authors.initials: J
authors.lastname: Franck
authors.forename: Maija
authors.initials: M
authors.lastname: Konstenius
authors.forename: Eli-Torild
authors.initials: ET
authors.lastname: Bu
authors.forename: Franz
authors.initials: F
authors.lastname: Moggi
authors.forename: Geert
authors.initials: G
authors.lastname: Dom
authors.forename: Zolt
authors.initials: Z
authors.lastname: Demetrovics
authors.forename: Mélina
authors.initials: M
authors.lastname: Fatséas
authors.forename: Arild
authors.initials: A
authors.lastname: Schillinger
authors.forename: Máté
authors.initials: M
authors.lastname: Kapitány-Fövény
authors.forename: Sofie
authors.initials: S
authors.lastname: Verspreet
authors.forename: Andrea
authors.initials: A
authors.lastname: Seitz
authors.forename: Brian
authors.initials: B
authors.lastname: Johnson
authors.forename: Stephen V
authors.initials: SV
authors.lastname: Faraone
authors.forename: J Antoni
authors.initials: JA
authors.lastname: Ramos-Quiroga
authors.forename: Steve
authors.initials: S
authors.lastname: Allsop
authors.forename: Susan
authors.initials: S
authors.lastname: Carruthers
authors.forename: Robert A
authors.initials: RA
authors.lastname: Schoevers
authors.forename: Wim
authors.initials: W
authors.lastname: van den Brink
mesh_terms: D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology* / Q000534:rehabilitation; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods; D008875:Middle Aged; D065840:Protective Factors; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D012107:Research Design; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000534:rehabilitation; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: ADHD; attention/deficit hyperactivity disorder; prevalence; substance use disorders
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