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Religiousness and self-control in patients with substance use disorder (SUD) and comorbid attention deficit/hyperactivity disorder (ADHD)

  • Alex H.A. Begeman
  • , Arnt Schellekens
  • , Wim van den Brink
  • , Csaba Barta
  • , Christoffer Brynte
  • , Cleo L. Crunelle
  • , Laura De Fuentes-Merillas
  • , Zsolt Demetrovics
  • , Geert Dom
  • , Johan Franck
  • , Lara Grau
  • , Mariely Hernandez
  • , Romain Icick
  • , M. Kapitány-Fövény
  • , Frances R. Levin
  • , Mathias Luderer
  • , Wiebren Markus
  • , Frieda I.A. Matthys
  • , Franz Moggi
  • , Michiel van Kernebeek
  • Jose A. Ramos-Quiroga, Ortal Slobodin, Hanneke Schaap-Jonker

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Background: Religiousness has been positively associated with better mental health and stronger self-control, including in patients with substance use disorders (SUDs) or attention deficit/hyperactivity disorder (ADHD). However, data on religiousness in patients with SUD and comorbid ADHD are lacking. 

    Objectives: This study aims to test in patients with SUD and comorbid ADHD whether (1) religiousness is negatively associated with SUD and ADHD symptom severity, and (2) self-control mediates the assumed negative association of religiousness with SUD and ADHD symptom severity. 

    Method: In an international cohort study, baseline religiousness, self-control, SUD and ADHD symptom severity, and craving were assessed with self-report questionnaires and structured clinical interviews in 578 treatment-seeking SUD patients with comorbid adult ADHD (SUD + ADHD). Data were analyzed using structural equation modeling (SEM). 

    Results: Stronger self-control wad associated with lower severity of both ADHD and SUD, but higher religiousness was only associated with lower severity of ADHD. This association was not mediated by self-control. 

    Conclusion: Religiousness may have a salutary relationship with ADHD severity, but not with SUD severity. While self-control was associated with lower symptom severity for both co-occurring conditions, it may not be involved in the potentially salutary effects of religiousness in patients with SUD + ADHD.

    Original languageEnglish
    Pages (from-to)1271-1280
    Number of pages10
    JournalInternational Journal of Social Psychiatry
    Volume71
    Issue number7
    DOIs
    Publication statusPublished - Nov 2025

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    Keywords

    • ADHD
    • craving
    • Religiousness
    • self-control
    • SUD

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