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Reaching out to big losers: Brief motivational contact leads to sustained reductions in gambling over one year
Stockholm University, Faculty of Social Sciences, Department of Psychology, Clinical psychology.ORCID iD: 0000-0003-3908-5841
Stockholm University, Faculty of Social Sciences, Department of Psychology, Clinical psychology.ORCID iD: 0000-0002-2172-8813
(English)In: Article in journal (Refereed) Submitted
Abstract [en]

Background and aims: We previously demonstrated that phone and letter-based motivational interventions with high expenditure gamblers had significant short term positive effects on gambling and use of responsible gambling tools. This report examines outcomes over twelve months.

Design: A randomized controlled trial design with three conditions: feedback intervention by telephone, letter, or a no-contact control condition.

Setting: Customers of Norsk Tipping gambling platforms.

Participants: 1,003 statistical triplets from the top .5% of customers based upon annual expenditure, matched on sex, age, and net losses.

Measurements: Primary outcome measure was gambling theoretical loss, derived from the Norsk Tipping customer database. Secondary outcomes were responsible gambling customer actions and whether the participant was retained as a NT customer.

Findings: The results showed a positive and sustained effect of the phone and letter interventions over 12 months - the telephone group showed a 30% reduction in theoretic loss (d =0.44) and the letter group 13% (d =0.18), both outperforming the control group with a 7% reduction (d =0.11). The phone condition was superior to both the letter and control conditions in per protocol (p<0.001) and intention to treat analyses (ITT) (p< 0.018 and 0.001). Individuals in the phone condition took more responsible gambling actions. The letter condition had better outcomes than the control in the ITT only (p<0.001). Over 99% in the intervention groups were still customers during the follow-up year.

Conclusions: A targeted telephone intervention with high expenditure customers effectively reduced theoretical losses over a 12 month period. Gambling companies can utilize this type of intervention as a response to their duty to care for customers.

Keywords [en]
Behavioral feedback, Motivational intervention, Problem gambling, Prevention, Responsible gambling, long term effect
National Category
Applied Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:su:diva-172361OAI: oai:DiVA.org:su-172361DiVA, id: diva2:1346368
Available from: 2019-08-27 Created: 2019-08-27 Last updated: 2019-09-04Bibliographically approved
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CiteExportLink to record
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