Effects of the social norms intervention The GOOD Life on norm perceptions, binge drinking and alcohol-related harms: a cluster-randomised controlled trial

Lotte Vallentin-Holbech, Birthe Marie Rasmussen, Christiane Stock

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Abstrakt

The study aimed to investigate if the school-based social norms intervention The GOOD Life was effective in reducing misperceptions, heavy alcohol use and alcohol-related harms among Danish pupils aged 13–17 years.

In total 38 schools were included in a cluster-randomised controlled trial and allocated to either intervention (n = 641) or control group (n = 714) during 2015/2016. Both groups completed an online survey before the intervention and 3 months after baseline. The GOOD Life intervention provided normative feedback tailored for each school-grade using three communication channels: classroom sessions, posters and web application. Outcome measures were overestimation of peers' lifetime binge drinking, binge drinking (5 or more drinks on one occasion) and alcohol-related harms. Intervention effects at follow-up were examined using multilevel logistic regression models.

Pupils in the intervention group were less likely to overestimate peers' lifetime binge drinking compared to those in the control group (OR: 0.52, 95%CI: 0.33–0.83) and were less likely to report two or more alcohol-related harms (OR: 0.59, 95%CI: 0.37–0.93). Overall, no significant effect of the intervention was found on binge drinking. However, among pupils stating it would be ok, if they drank more (n = 296), a preventive effect was found on binge drinking four or more times during the last 30 days (OR: 0.37, 95%CI: 0.15–0.95). Additionally, the intervention effect on overestimation was higher among pupils who reported binge drinking at baseline.

Receiving the intervention had a positive effect on norm perceptions and alcohol-related harms. We also found that the intervention effect differed by baseline status of alcohol use.
OriginalsprogEngelsk
TidsskriftPreventive Medicine Reports
Vol/bind12
Sider (fra-til)304-311
Antal sider8
ISSN2211-3355
DOI
StatusUdgivet - 2018

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