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Online Alcohol Assessment and Feedback for Hazardous and Harmful Drinkers: Findings From the AMADEUS-2 Randomized Controlled Trial of Routine Practice in Swedish Universities.

Bendtsen P, Bendtsen M, Karlsson N, White IR, McCambridge J - J. Med. Internet Res. (2015)

Bottom Line: Previous research on the effectiveness of online alcohol interventions for college students has shown mixed results.Small benefits have been found in some studies and because online interventions are inexpensive and possible to implement on a large scale, there is a need for further study.Also, differences in effect sizes between universities were seen with participants from a major university (n=365) reducing their weekly alcohol consumption by 14% (95% CI -23% to -4%).

View Article: PubMed Central - HTML - PubMed

Affiliation: Medical Faculty, Department of Medical Specialist and Department of Medicine and Health Sciences, Linköping University, Motala, Linköping, Sweden. preben.bendtsen@liu.se.

ABSTRACT

Background: Previous research on the effectiveness of online alcohol interventions for college students has shown mixed results. Small benefits have been found in some studies and because online interventions are inexpensive and possible to implement on a large scale, there is a need for further study.

Objective: This study evaluated the effectiveness of national provision of a brief online alcohol intervention for students in Sweden.

Methods: Risky drinkers at 9 colleges and universities in Sweden were invited by mail and identified using a single screening question. These students (N=1605) gave consent and were randomized into a 2-arm parallel group randomized controlled trial consisting of immediate or delayed access to a fully automated online assessment and intervention with personalized feedback.

Results: After 2 months, there was no strong evidence of effectiveness with no statistically significant differences in the planned analyses, although there were some indication of possible benefit in sensitivity analyses suggesting an intervention effect of a 10% reduction (95% CI -30% to 10%) in total weekly alcohol consumption. Also, differences in effect sizes between universities were seen with participants from a major university (n=365) reducing their weekly alcohol consumption by 14% (95% CI -23% to -4%). However, lower recruitment than planned and differential attrition in the intervention and control group (49% vs 68%) complicated interpretation of the outcome data.

Conclusions: Any effects of current national provision are likely to be small and further research and development work is needed to enhance effectiveness.

Trial registration: International Standard Randomized Controlled Trial Number (ISRCTN): 02335307; http://www.isrctn.com/ISRCTN02335307 (Archived by WebCite at http://www.webcitation.org/6ZdPUh0R4).

No MeSH data available.


Flowchart of the AMADEUS study.
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Related In: Results  -  Collection

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figure4: Flowchart of the AMADEUS study.

Mentions: Figure 4 depicts the flow of participants from the invitation to the follow-up. In total, 1605 risky (both hazardous and harmful) drinkers agreed to participate in the study and were randomized to the intervention arm (n=825) or control arm (n=780). In Table 1, the intervention and control groups are compared at baseline for frequency of HED, term, and time to consent. Some of the smaller participating college/universities only managed to recruit a few risky drinkers. For one college (Gävle), none of the 4 recruited participants were randomized to the control group, so this college was necessarily excluded from the remaining analyses including college. Two large universities (Lund and Uppsala) contributed approximately two-thirds of all participants. There were no differences between the intervention and control groups with regard to baseline characteristics.


Online Alcohol Assessment and Feedback for Hazardous and Harmful Drinkers: Findings From the AMADEUS-2 Randomized Controlled Trial of Routine Practice in Swedish Universities.

Bendtsen P, Bendtsen M, Karlsson N, White IR, McCambridge J - J. Med. Internet Res. (2015)

Flowchart of the AMADEUS study.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4526986&req=5

figure4: Flowchart of the AMADEUS study.
Mentions: Figure 4 depicts the flow of participants from the invitation to the follow-up. In total, 1605 risky (both hazardous and harmful) drinkers agreed to participate in the study and were randomized to the intervention arm (n=825) or control arm (n=780). In Table 1, the intervention and control groups are compared at baseline for frequency of HED, term, and time to consent. Some of the smaller participating college/universities only managed to recruit a few risky drinkers. For one college (Gävle), none of the 4 recruited participants were randomized to the control group, so this college was necessarily excluded from the remaining analyses including college. Two large universities (Lund and Uppsala) contributed approximately two-thirds of all participants. There were no differences between the intervention and control groups with regard to baseline characteristics.

Bottom Line: Previous research on the effectiveness of online alcohol interventions for college students has shown mixed results.Small benefits have been found in some studies and because online interventions are inexpensive and possible to implement on a large scale, there is a need for further study.Also, differences in effect sizes between universities were seen with participants from a major university (n=365) reducing their weekly alcohol consumption by 14% (95% CI -23% to -4%).

View Article: PubMed Central - HTML - PubMed

Affiliation: Medical Faculty, Department of Medical Specialist and Department of Medicine and Health Sciences, Linköping University, Motala, Linköping, Sweden. preben.bendtsen@liu.se.

ABSTRACT

Background: Previous research on the effectiveness of online alcohol interventions for college students has shown mixed results. Small benefits have been found in some studies and because online interventions are inexpensive and possible to implement on a large scale, there is a need for further study.

Objective: This study evaluated the effectiveness of national provision of a brief online alcohol intervention for students in Sweden.

Methods: Risky drinkers at 9 colleges and universities in Sweden were invited by mail and identified using a single screening question. These students (N=1605) gave consent and were randomized into a 2-arm parallel group randomized controlled trial consisting of immediate or delayed access to a fully automated online assessment and intervention with personalized feedback.

Results: After 2 months, there was no strong evidence of effectiveness with no statistically significant differences in the planned analyses, although there were some indication of possible benefit in sensitivity analyses suggesting an intervention effect of a 10% reduction (95% CI -30% to 10%) in total weekly alcohol consumption. Also, differences in effect sizes between universities were seen with participants from a major university (n=365) reducing their weekly alcohol consumption by 14% (95% CI -23% to -4%). However, lower recruitment than planned and differential attrition in the intervention and control group (49% vs 68%) complicated interpretation of the outcome data.

Conclusions: Any effects of current national provision are likely to be small and further research and development work is needed to enhance effectiveness.

Trial registration: International Standard Randomized Controlled Trial Number (ISRCTN): 02335307; http://www.isrctn.com/ISRCTN02335307 (Archived by WebCite at http://www.webcitation.org/6ZdPUh0R4).

No MeSH data available.