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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. A cluster quasi-randomized control trial (intervention n = 338; control n = 330) among 16- to 18-year-old secondary school students in the(More)
BACKGROUND Research in the United States and the United Kingdom indicates that drinking before going out (commonly called "predrinking") is common among young people and associated with increased harm. On the basis of Swiss data, this study investigates differences in alcohol consumption and adverse or risky outcomes for evenings when persons consumed(More)
AIMS To investigate whether the predominant finding of generalized positive associations between self-rated motives for drinking alcohol and negative consequences of drinking alcohol are influenced by (i) using raw scores of motives that may weight inter-individual response behaviours too strongly, and (ii) predictor-criterion contamination by using(More)
Rapid advances in mobile data-transfer technologies offer new possibilities in the use of cell phones to conduct assessments of a person's natural environment in real time. This paper describes features of a new Internet-based, cell phone-optimized assessment technique (ICAT), which consists of a retrospective baseline assessment combined with text messages(More)
BACKGROUND Memory deficits lead to distortion when long recall periods are used to assess alcohol consumption. We used the recently developed Internet-based cell phone-optimised assessment technique (ICAT) to describe the drinking patterns of young people over the course of Thursday, Friday and Saturday evenings and to compare the amounts reported during(More)
In alcohol epidemiology surveys, there is a tradition of measuring alcohol-related consequences using respondents' attribution of alcohol as the cause. The authors aimed to compare the prevalence and frequency of self-attributed consequences to consequences without self-attribution using alcohol-attributable fractions (AAF). In 2007, a total of 7,174 Swiss(More)
AIMS To test whether (i) drinking motives predict the frequency of pre-drinking (i.e. alcohol consumption before going out); (ii) drinking motives predict HDGE (heavy drinking on a given evening: 4+ for women, 5+ for men) and related adverse consequences (hangover, injuries, blackouts, etc.), even when pre-drinking is accounted for, and (iii) drinking(More)
Using a full cross-lagged model, this study investigates the extent to which drinking motives predict alcohol use and related consequences, and vice versa. At baseline and 15 months later, 4575 men (mean age = 19.4 years) in Switzerland completed a questionnaire assessing drinking motives, average weekly consumption, risky single-occasion drinking, and(More)
AIMS To investigate how gender composition of the drinking group affects young adults' alcohol consumption on weekend evenings over and above the effect of drinking-group size. DESIGN Using the internet-based cellphone-optimized assessment technique (ICAT), participants completed online questionnaires on their cell phones every hour from 8 p.m. to(More)