High Schools- High on Life: an Intervention to Reduce Excessive Drinking in Danish High Schools

Study Overview
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Brief Summary
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High schools High on life' intervention is a high school-based, multi-component intervention guided by theory, evidence, and empirical findings to reduce excessive drinking among Danish high school students. The study will employ a cluster-randomized controlled study design: investigators plan to include a random sample of at least 12 high schools randomly 1:1 allocated to either intervention or control group. Timeline: Baseline data will be obtained from the Danish National Youth Study 2019, collected in January to March 2019. Delivery of intervention: August 2019 to January 2020. Follow-up survey: April to May 2020. Primary outcome measure: mean number of binge-drinking episodes within the last 30 days. Secondary outcome measures: weekly alcohol consumption, alcohol intake at last school party, alcohol intake at the school during last school party, number of students that agrees that they are able to have fun at a party without drinking, and the proportion of students that think alcohol plays a too dominant part at the school. Implementation will be monitored thorough process evaluation.

Detailed Description
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High schools High on life' intervention is a high school-based, multi-component intervention guided by theory, evidence, and empirical findings to reduce excessive drinking among Danish high school students. The study will employ a cluster-randomized controlled study design: based on sample size calculations investigators plan to include a random sample of at least 12 high schools randomly 1:1 allocated to either intervention or control group. Timeline: Baseline data will be obtained from the Danish National Youth Study 2019, collected in January to March 2019. Delivery of intervention: August 2019 to January 2020. Follow-up survey: April to May 2020. Primary outcome measure: mean number of binge-drinking episodes within the last 30 days. Secondary outcome measures: weekly alcohol consumption, alcohol intake at last school party, alcohol intake at the school during last school party, number of students that agrees that they are able to have fun at a party without drinking, and the proportion of students that think alcohol plays a too dominant part at the school. Implementation will be monitored thorough process evaluation.

Official Title
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High Schools- High on Life: an Intervention to Reduce Excessive Drinking in Danish High Schools

Conditions
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Alcohol Drinking

Intervention / Treatment
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* Behavioral: High schools High on Life


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Enrolled in High school that participate in The Danish National Youth Study 2019 General High Schools Exclusion Criteria: non General High schools students non participation in The Danish National Youth Study 2019

Ages Eligible for Study
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Minimum Age: 15 Years
Maximum Age: 25 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: The study will employ a cluster-randomized controlled study design: investigators plan to include a random sample of at least 12 high schools randomly 1:1 allocated to either intervention or control group.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention<br>The intervention consist of three main components. School environmental component The component targeting the high school environment consisted of two separate elements: Revision of school alcohol policy Appointment of coordinator(s) of student committees organizing events, where alcohol is sold, and student introduction committee. Student components The Student components consisted of three main elements: Web-based education for the student committees organizing events where alcohol is sold and the student introduction committee Pocket movie campaign Social norms campaign Parent components The parent component consisted of three separate elements: Parent Information Meeting Parent Information Folder Parent Information Website | Behavioral: High schools High on Life<br>* The intervention consist of three main components. Environmental factors of the school environment The component targeting the high school environment consisted of two separate elements: Revision of school alcohol policy Appointment of coordinator(s) of student committees organizing events, where alcohol is sold, and student introduction committee. Student component The Student components consisted of three main elements: Online education for the student committees organizing events where alcohol is sold and the student introduction committee Pocket movie campaign competition Social norms campaign Parent component The parent component consisted of three separate elements: Parent Information Meeting Parent Information Folder Parent Information Website<br>|
| No Intervention: control group<br>Control high schools was asked to continue business as usual and promised to receive the intervention in the school year starting in 2020 | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean number of binge drinking occasions within the last 30 days | 30% lower number of binge drinking occasions within the last 30 days | 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Weekly alcohol consumption | Mean weekly alcohol consumption | 12 months | 
| Alcohol intake at last school party | Alcohol intake at last school party | 12 months | 
| Alcohol intake at the school during last school party | Alcohol intake at the school during last school party | 12 months | 
| Proportion that think alcohol play a too dominant part at the school | Proportion who think alcohol play a too dominant part at the school | 12 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Adolescence, Alcohol use, High school