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Reduction of alcohol use by young adolescents: a randomized trial with four conditions.


- candidate number2047
- NTR NumberNTR649
- ISRCTNISRCTN31724721
- Date ISRCTN created7-jun-2006
- date ISRCTN requested16-mei-2006
- Date Registered NTR4-apr-2006
- Secondary IDs50-50110-98-208 
- Public TitleReduction of alcohol use by young adolescents: a randomized trial with four conditions.
- Scientific TitleReduction of alcohol use by young adolescents: a randomized trial with four conditions.
- ACRONYMN/A
- hypothesisThe implementation of the interventions will reduce the alcohol use by adolescents under the age of 16, measured by the percentage of binge drinking, the weekly number of drinks and the percentage of adolescents who drink on a weekly basis.
- Healt Condition(s) or Problem(s) studiedNo condition, healthy person
- Inclusion criteriaAdolescents in the first grade of secondary school.
- Exclusion criteriaAdolescents who do not attend school.
- mec approval receivedno
- multicenter trialno
- randomisedyes
- masking/blindingNone
- controlActive
- groupParallel
- Type-
- Studytypeintervention
- planned startdate 15-apr-2006
- planned closingdate28-feb-2010
- Target number of participants5400
- InterventionsThe objective of the present study is to determine the effectiveness of two interventions for reducing alcohol use by young adolescents: the renewed alcohol module, developed within the scope of the Healthy School and Drugs (Gezonde School en Genotmiddelen) program, based on elements proven effective in the past in previous modules, and a new parent intervention that primarily focuses on influencing the way parents raise their children with respect to alcohol consumption. The renewed alcohol module consists of four lessons. The parent intervention is introduced during a parent evening at the school. Both interventions will be held in the first year of secondary education Schools will be randomly assigned to one of the following four conditions: (1) Regular curriculum, (2) renewed Healthy School and Drugs alcohol module, (3) Parent Intervention (PI), (4) Combination of 2 and 3.
- Primary outcomeOver a course of three years, the effectiveness of two interventions for reducing alcohol use by adolescents under the age of 16 is assessed. In particular, we examine the effectiveness of each of the interventions separately and simultaneously offered. The interventions are targeted at the reduction of alcohol consumption among young adolescents. These objectives will be concretized in the following attainment targets: 1. Reduce the percentage of binge drinking (> than five drinks) with at least 10%; 2. Reduce the weekly number of drinks from 10 to 6 drinks; 3. Reduce the percentage of adolescents who drink on a weekly basis with 10%. The parent intervention will take place in October 2006, booster sessions at the beginning of each successive school year in 2007 and 2008. The alcohol module will be run in March to April of the first grade in secondary education in all participating schools in 2007. Measurements will take place before the first intervention, T0 August to September 2006, and at the beginning of each successive school year; T1 October to November 2007, T2 October to November 2008, T3 October to November 2009. Students will answer a digital questionnaire in their classroom. Parents will be sent a questionnaire by post.
- Secondary outcomeWe will examine whether the effectiveness of these interventions is dependent upon particular child, parent or school characteristics (moderator-effects) and whether the effectiveness is mediated by particular child, parent or school characteristics. In addition, it will be analysed whether the interventions have a simultaneous effect on the reduction of externalising problem behaviour.
- Timepoints
- Trial web siteN/A
- statusplanned
- CONTACT FOR PUBLIC QUERIESDr. J. Verdurmen
- CONTACT for SCIENTIFIC QUERIESProf. Dr. W.A.M. Vollebergh
- Sponsor/Initiator Trimbos-institute - Netherlands Institute of Mental Health and Addiction, University Medical Center Utrecht (UMCU), University Medical Center St. Radboud
- Funding
(Source(s) of Monetary or Material Support)
ZON-MW, The Netherlands Organization for Health Research and Development
- PublicationsN/A
- Brief summaryThe effectiveness of two interventions for reducing alcohol use by adolescents under the age of 16 is measured. The two interventions are the renewed alcohol module, developed within the scope of the Healthy School and Drugs (Gezonde School en Genotmiddelen) program, based on elements proven effective in the past in previous modules, and a new parent intervention that primarily focuses on influencing the way parents raise their children with respect to alcohol consumption. It concerns a randomized controlled trial with four parallel groups in which we study the effectiveness of each of the interventions separately and simultaneously offered. In addition, we examine whether the effectiveness of these interventions is dependent upon particular child, parent or school characteristics (moderator-effects) and whether the effectiveness is mediated by particular child, parent or school characteristics.
- Main changes (audit trail)
- RECORD4-apr-2006 - 3-jul-2006


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