Hansen, Anders Blædel Gottlieb6; Becker, Ulrik4; Søgaard Nielsen, Anette5; Grønbæk, Morten7; Tolstrup, Janne Schurmann6
1 Research Programme on Adult Health and Health-related Behaviour, National Institute of Public Health, Det Sundhedsvidenskabelige Fakultet, SDU2 Det Sundhedsvidenskabelige Fakultet, SDU3 Administrative, Technical Staff and Management, National Institute of Public Health, Det Sundhedsvidenskabelige Fakultet, SDU4 Hvidovre Hospital, University of Copenhagen5 Statens Institut for Folkesundhed6 Research Programme on Adult Health and Health-related Behaviour, National Institute of Public Health, Det Sundhedsvidenskabelige Fakultet, SDU7 Administrative, Technical Staff and Management, National Institute of Public Health, Det Sundhedsvidenskabelige Fakultet, SDU
Introduction: Compelling evidence exists for the efficacy of face-to-face brief interventions for reducing heavy drinking. However, the evidence for the efficacy of web-based brief interventions is less consistent. In a Danish context, the feasibility and efficacy of a web-based brief intervention targeting heavy drinkers has not been tested. Objective: To examine whether a web-based personalized feedback intervention and web-based self-help material resulted in lowering of self-reported alcohol use in a non-treatment seeking population of heavy drinkers (defined as weekly alcohol consumption above the Danish sensible drinking limits (14 units = 168 grams of alcohol for women, 21 units = 252 grams for men)). Methods: Before participating in a Danish Health Examination survey, participants completed a web-based questionnaire. Screening of 54,158 adults led to inclusion of 1,381 heavy drinkers, who were randomized into a brief personalized feedback group (normative feedback) (n=476), a group receiving self-help material (information about health consequences of exceeding recommended drinking limits) (n=450), or a control group (no information) (n=455). Outcome measure was self-reported alcohol consumption. Results: Follow-up took place after six/12 months on 873/1066 persons. At six and 12 months follow-up, the difference in weekly alcohol use between the three groups was non-significant (P=0,18 / P=0,47). At six months follow-up, a completers analysis showed significant differences between the control- and the personalized feedback group (2.6 standard drinks, P=0.01). In terms of feasibility, the success of the study was acceptable as 41% accepted participation and 70% were followed up. Discussion: We found no evidence that a brief personalized feedback intervention or self-help material could lead to a reduction in self-reported alcohol consumption. A completers analysis provides preliminary support for the efficacy of a personalized feedback intervention. Web-based interventions for heavy drinkers are feasible but further evaluations of their efficacy and effectiveness are required.
7th Conference of Inebria: Brief Interventions on Alcohol Advances in Research and Pratice. Gothenburg 9 - 10 September 2010, 2010
Alcohol; brief intervention; internet; heavy drinking