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- Koning, Ina M., et al.
(författare)
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Preventing Heavy Alcohol Use in Adolescents (PAS) : Cluster Randomized Trial of a Parent and Student Intervention offered Separately and Simultaneously
- 2009
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Ingår i: Addiction. - : Wiley-Blackwell. - 0965-2140 .- 1360-0443. ; 104:10, s. 1669-1678
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Tidskriftsartikel (refereegranskat)abstract
- Aims: To evaluate the effectiveness of two preventive interventions to reduce heavy drinking in first- and second-year high school students.Design and setting: Cluster randomized controlled trial using four conditions for comparing two active interventions with a control group from 152 classes of 19 high schools in the Netherlands.Participants: A total of 3490 first-year high school students (mean 12.68 years, SD = 0.51) and their parents.Intervention conditions: (i) Parent intervention (modelled on the Swedish Örebro Prevention Program) aimed at encouraging parental rule-setting concerning their children's alcohol consumption; (ii) student intervention consisting of four digital lessons based on the principles of the theory of planned behaviour and social cognitive theory; (iii) interventions 1 and 2 combined; and (iv) the regular curriculum as control condition.Main outcome measures: Incidence of (heavy) weekly alcohol use and frequency of monthly drinking at 10 and 22 months after baseline measurement.Findings: A total of 2937 students were eligible for analyses in this study. At first follow-up, only the combined student–parent intervention showed substantial and statistically significant effects on heavy weekly drinking, weekly drinking and frequency of drinking. At second follow-up these results were replicated, except for the effects of the combined intervention on heavy weekly drinking. These findings were consistent across intention-to-treat and completers-only analyses.Conclusions: Results suggest that adolescents as well as their parents should be targeted in order to delay the onset of drinking, preferably prior to onset of weekly drinking.
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