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Published in: BMC Public Health 1/2013

Open Access 01-12-2013 | Research article

The effectiveness of a web-based brief alcohol intervention in reducing heavy drinking among adolescents aged 15–20 years with a low educational background: a two-arm parallel group cluster randomized controlled trial

Authors: Carmen V Voogt, Marloes Kleinjan, Evelien AP Poelen, Lex ACJ Lemmers, Rutger CME Engels

Published in: BMC Public Health | Issue 1/2013

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Abstract

Background

To evaluate the slightly modified version of the web-based brief alcohol intervention “What Do You Drink” (WDYD) among heavy drinking adolescents and young adults aged 15–20 years with a low educational background at one and six months follow-up.

Methods

A two-arm parallel group cluster randomized controlled trial was conducted online in the Netherlands in 2011–2012. Participants included in the trial were recruited from preparatory and secondary vocational education institutions and had to be between 15 and 20 years of age and report heavy drinking in the past six months. In total, 73 classes representing 609 (59.9% male) participants were allocated to the experimental condition (37 classes, 318 participants: WDYD intervention) or control condition (36 classes, 291 participants: no intervention). Outcomes were heavy drinking, weekly alcohol consumption, and frequency of binge drinking.

Results

Regressions analyses revealed no significant main intervention effects on any of the alcohol outcomes at one and six month’s follow-up according to the intention-to-treat principle. Additionally, there were no moderating effects of gender, age, educational level, and readiness to change on the relation between the WDYD intervention and the alcohol outcomes at follow-up.

Conclusions

The WDYD intervention was not effective in reducing alcohol consumption among heavy drinking adolescents and young adults aged 15–20 years with a low educational background at one and six months follow-up. However, the absence of intervention effectiveness cannot be used as an argument for not conducting these types of interventions with low educated individuals, since our study was the first to target this population.

Trial registration

Netherlands Trial Register NTR2971
Appendix
Available only for authorised users
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Metadata
Title
The effectiveness of a web-based brief alcohol intervention in reducing heavy drinking among adolescents aged 15–20 years with a low educational background: a two-arm parallel group cluster randomized controlled trial
Authors
Carmen V Voogt
Marloes Kleinjan
Evelien AP Poelen
Lex ACJ Lemmers
Rutger CME Engels
Publication date
01-12-2013
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2013
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/1471-2458-13-694

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