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dc.contributor.authorSagoe, Dominic
dc.contributor.authorGriffiths, Mark D.
dc.contributor.authorErevik, Eilin K.
dc.contributor.authorHøyland, Turid
dc.contributor.authorLeino, Tony Mathias
dc.contributor.authorLande, Ida Alette
dc.contributor.authorSigurdsson, Mie Engen
dc.contributor.authorPallesen, Ståle
dc.date.accessioned2022-01-21T14:48:51Z
dc.date.available2022-01-21T14:48:51Z
dc.date.created2021-08-19T11:41:47Z
dc.date.issued2021
dc.identifier.issn2062-5871
dc.identifier.urihttps://hdl.handle.net/11250/2838770
dc.description.abstractBackground and aims The effect of internet-based psychological treatment for gambling problems has not been previously investigated by meta-analysis. The present study is therefore a quantitative synthesis of studies on the effects of internet-based treatment for gambling problems. Given that effects may vary according to the presence of therapist support and control conditions, it was presumed that subgroup analyses would elucidate such effects. Methods A systematic search with no time constraints was conducted in PsycINFO, MEDLINE, Web of Science, and the Cochrane Library. Two authors independently extracted data using a predefined form, including study quality assessment based on the Cochrane risk of bias tool. Effect sizes were calculated using random-effects models. Heterogeneity was indexed by Cochran’s Q and the I 2 statistics. Publication bias was investigated using trim and fill. Results Thirteen studies were included in the analysis. Random effects models at post-treatment showed significant effects for general gambling symptoms (g = 0.73; 95% CI = 0.43–1.03), gambling frequency (g = 0.29; 95% CI = 0.14–0.45), and amount of money lost gambling (g = 0.19; 95% CI = 0.11–0.27). The corresponding findings at follow-up were g = 1.20 (95% CI = 0.79–1.61), g = 0.36 (95% CI = 0.12–0.60), and g = 0.20 (95% CI = 0.12–0.29) respectively. Subgroup analyses showed that for general gambling symptoms, studies with therapist support yield larger effects than studies without, both post-treatment and at follow-up. Additionally, on general gambling symptoms and gambling frequency, there were lower effect sizes for studies with a control group compared to studies without a control group at follow-up. Studies with higher baseline severity of gambling problems were associated with larger effect sizes at both posttreatment and follow-up than studies with more lenient inclusion criteria concerning gambling problems. Discussion and conclusions Internet-based treatment has the potential to reach a large proportion of persons with gambling problems. Results of the meta-analysis suggest that such treatments hold promise as an effective approach. Future studies are encouraged to examine moderators of treatment outcomes, validate treatment effects cross-culturally, and investigate the effects of novel developments such as ecological momentary interventions.en_US
dc.language.isoengen_US
dc.publisherAkadémiai Kiadóen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleInternet-based treatment of gambling problems: A systematic review and meta-analysis of randomized controlled trialsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1556/2006.2021.00062
dc.identifier.cristin1927248
dc.source.journalJournal of Behavioral Addictionsen_US
dc.source.pagenumber546-565en_US
dc.identifier.citationJournal of Behavioral Addictions. 2021, 10 (3), 546-565.en_US
dc.source.volume10en_US
dc.source.issue3en_US


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
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