Title
Variability in the prevalence of adult ADHD in treatment seeking substance use disorder patients : results from an international multi-center study exploring DSM-IV and DSM-5 criteriaVariability in the prevalence of adult ADHD in treatment seeking substance use disorder patients : results from an international multi-center study exploring DSM-IV and DSM-5 criteria
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Research group
Collaborative Antwerp Psychiatric Research Institute (CAPRI)
Publication type
article
Publication
Lausanne,
Subject
Human medicine
Source (journal)
Drug and alcohol dependence. - Lausanne
Volume/pages
134(2014), p. 158-166
ISSN
0376-8716
ISI
000332425500021
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Abstract Background Available studies vary in their estimated prevalence of attention deficit/hyperactivity disorder (ADHD) in substance use disorder (SUD) patients, ranging from 2 to 83%. A better understanding of the possible reasons for this variability and the effect of the change from DSM-IV to DSM-5 is needed. Methods A two stage international multi-center, cross-sectional study in 10 countries, among patients form inpatient and outpatient addiction treatment centers for alcohol and/or drug use disorder patients. A total of 3558 treatment seeking SUD patients were screened for adult ADHD. A subsample of 1276 subjects, both screen positive and screen negative patients, participated in a structured diagnostic interview. Results Prevalence of DSM-IV and DSM-5 adult ADHD varied for DSM-IV from 5.4% (CI 95%: 2.48.3) for Hungary to 31.3% (CI 95%:25.237.5) for Norway and for DSM-5 from 7.6% (CI 95%: 4.111.1) for Hungary to 32.6% (CI 95%: 26.438.8) for Norway. Using the same assessment procedures in all countries and centers resulted in substantial reduction of the variability in the prevalence of adult ADHD reported in previous studies among SUD patients (283% → 5.431.3%). The remaining variability was partly explained by primary substance of abuse and by country (Nordic versus non-Nordic countries). Prevalence estimates for DSM-5 were slightly higher than for DSM-IV. Conclusions Given the generally high prevalence of adult ADHD, all treatment seeking SUD patients should be screened and, after a confirmed diagnosis, treated for ADHD since the literature indicates poor prognoses of SUD in treatment seeking SUD patients with ADHD.
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