Efficacy of a web- and text messaging-based intervention to reduce problem drinking in adolescents: Results of a cluster-randomised controlled trial

Item Type Journal paper
Abstract

Objective: To test the efficacy of a combined web- and text messaging-based intervention to reduce problem drinking in young people compared to assessment only. Method: Two-arm, parallel-group, cluster-randomized controlled trial with assessments at baseline and 6-month follow up. The automated intervention included online feedback, based on the social norms approach, and individually tailored text messages addressing social norms, outcome expectations, motivation, self-efficacy, and planning processes, provided over 3 months. The main outcome criterion was the prevalence of risky single-occasion drinking (RSOD, defined as drinking at least 5 standard drinks on a single occasion in men and 4 in women) in the past 30 days. Irrespective of alcohol consumption, 1,355 students from 80 Swiss vocational and upper secondary school classes, all of whom owned a mobile phone, were invited to participate in the study. Of these, 1,041 (76.8%) students participated in the study. Results: Based on intention-to-treat analyses, RSOD prevalence decreased by 5.9% in the intervention group and increased by 2.6% in the control group, relative to that of baseline assessment (odds ratio [OR] = 0.62, 95% confidence interval [CI] = 0.44–0.87). No significant group differences were observed for the following secondary outcomes: RSOD frequency, quantity of alcohol consumed, estimated peak blood alcohol concentration, and overestimation of peer drinking norms. Conclusions: The intervention program reduced RSOD, which is a major indicator of problem drinking in young people, effectively.

Authors Haug, Severin; Paz Castro, Raquel; Kowatsch, Tobias; Filler, Andreas; Dey, Michelle & Schaub, Michael
Journal or Publication Title Journal of Consulting and Clinical Psychology
Subjects information management
social sciences
other research area
Institute/School ?? STUDENT ??
ITEM - Institute of Technology Management with Transfer Center for Technology Management (TECTEM)
HSG Classification contribution to scientific community
Refereed Yes
Date 2017
Volume 85
Number 2
Page Range 147-159
Publisher DOI 10.1037/ccp0000138
Official URL http://dx.doi.org/10.1037/ccp0000138
Depositing User Dr. oec. H Tobias Kowatsch
Date Deposited 14 Dec 2017 08:01
Last Modified 14 Dec 2017 08:01
URI: https://www.alexandria.unisg.ch/publications/252932

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Citation

Haug, Severin; Paz Castro, Raquel; Kowatsch, Tobias; Filler, Andreas; Dey, Michelle & Schaub, Michael (2017) Efficacy of a web- and text messaging-based intervention to reduce problem drinking in adolescents: Results of a cluster-randomised controlled trial. Journal of Consulting and Clinical Psychology, 85 (2). 147-159.

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https://www.alexandria.unisg.ch/id/eprint/252932
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