A quasi-randomized group trial of a brief alcohol intervention on risky single occasion drinking among secondary school students

作者：Gmel Gerhard^*; Venzin Vigeli; Marmet Katrin; Danko George; Labhart Florian

来源：International Journal of Public Health, 2012, 57(6): 935-944.

DOI：10.1007/s00038-012-0419-0

• Group randomized trial
• Brief alcohol intervention
• Risky single occasion drinking
• Secondary school students

To show the effectiveness of a brief group alcohol intervention. Aims of the intervention were to reduce the frequency of heavy drinking occasions, maximum number of drinks on an occasion and overall weekly consumption. %26lt;br%26gt;A cluster quasi-randomized control trial (intervention n = 338; control n = 330) among 16- to 18-year-old secondary school students in the Swiss Canton of Zurich. Groups homogeneous for heavy drinking occasions (5+/4+ drinks for men/women) consisted of those having medium risk (3-4) or high risk (5+) occasions in the past 30 days. Groups of 8-10 individuals received two 45-min sessions based on motivational interviewing techniques. %26lt;br%26gt;Borderline significant beneficial effects (p %26lt; 0.10) on heavy drinking occasions and alcohol volume were found 6 months later for the medium-risk group only, but not for the high-risk group. None of the effects remained significant after Bonferroni corrections. %26lt;br%26gt;Group intervention was ineffective for all at-risk users. The heaviest drinkers may need more intensive treatment. Alternative explanations were iatrogenic effects among the heaviest drinkers, assessment reactivity, or reduction of social desirability bias at follow-up through peer feedback.

• 出版日期2012-12