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A randomized controlled trial on a self-guided Internet-based intervention for gambling problems.

Lara Bücker1, Josefine Gehlenborg2, Steffen Moritz2

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Internet-based interventions show promise for treating gambling problems, with positive user evaluations. While not significantly outperforming treatment-as-usual, specific subgroups benefited more, suggesting tailored approaches for problematic gambling.

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Area of Science:

  • Psychology
  • Behavioral Science
  • Digital Health

Background:

  • Problematic and pathological gambling affect many individuals, yet treatment access remains limited due to high barriers.
  • Internet-based interventions offer a potential solution to overcome these barriers and reach underserved populations.
  • Previous studies indicate the feasibility and potential effectiveness of online interventions for gambling disorders.

Purpose of the Study:

  • To evaluate the feasibility, acceptance, and effectiveness of a self-guided, Internet-based intervention for gambling problems.
  • To compare the intervention group (IG) against a wait-list control group (CG) receiving treatment-as-usual.
  • To assess changes in gambling symptoms, depressive symptoms, and gambling-specific dysfunctional thoughts.

Main Methods:

  • A randomized controlled trial (N=150) with baseline and post-intervention assessments.
  • Participants were randomized to either the intervention group or a wait-list control group.
  • The intervention period lasted 8 weeks, followed by outcome assessments.

Main Results:

  • Both groups showed significant improvements in primary (gambling symptoms) and secondary outcomes (depressive symptoms, dysfunctional thoughts).
  • No significant between-group differences were found in the intention-to-treat analysis for the primary outcome.
  • Individuals in the intervention group with higher baseline gambling/depressive symptoms, older age, and anxiety showed greater improvement compared to the control group.
  • The intervention received high user ratings, with 96.5% finding the program useful.

Conclusions:

  • The self-guided Internet-based intervention is feasible and well-accepted by individuals with gambling problems.
  • While overall effectiveness did not significantly differ from treatment-as-usual, specific subgroups demonstrated notable benefits.
  • Future research should incorporate follow-up assessments and larger sample sizes to further elucidate the intervention's long-term impact and generalizability.