J. Med. Internet Res. - Two fully automated web-based interventions for risky alcohol use: randomized controlled trial.

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Resumo

CKGROUND: Excessive alcohol use is a widespread problem in many countries, especially among young people. To reach more people engaging in high-risk drinking behaviors, a number of online programs have been developed in recent years. Change Your Drinking is a German, diary-based, fully automated alcohol intervention. In 2010, a revised version of the program was developed. It is more strongly oriented to concepts of relapse prevention than the previous version, includes more feedback, and offers more possibilities to interact with the program. Moreover, the program duration was extended from 10 to 14 days.OBJECTIVE: This paper examines whether the revised version of Change Your Drinking is more effective in reducing alcohol consumption than the original version.METHODS: The effectiveness of both program versions was compared in a Web-based, open, randomized controlled trial with follow-up surveys 6 weeks and 3 months after registration. Participants were recruited online and were randomly assigned to either the original or the revised version of Change Your Drinking. The following self-assessed outcomes were used: alcohol use days, alcohol intake in grams, the occurrence of binge drinking and risky drinking (all referring to the past 7 days prior to each survey), and the number of alcohol-related problems.RESULTS: A total of 595 participants were included in the trial. Follow-up rates were 58.0% after 6 weeks and 49.6% after 3 months. No significant group differences were found in any of the outcomes. However, the revised version was used by more participants (80.7%) than the original version (55.7%). A significant time effect was detected in all outcomes (alcohol use days: P=.002; alcohol intake in grams: P<.001; binge drinking: P<.001; alcohol-related problems: P=.004; risky drinking: P<.001).CONCLUSIONS: The duration and complexity of the program played a minor role in reducing alcohol consumption. However, differences in program usage between the versions suggest the revised version was more attractive to participants.TRIAL REGISTRATION: International Standard Randomized Controlled Trial Number (ISRCTN): 31586428; http://www.controlled-trials.com/ISRCTN31586428/ (Archived by WebCite at http://www.webcitation.org/6BFxApCUT).

Resumo Limpo

ckground excess alcohol use widespread problem mani countri especi among young peopl reach peopl engag highrisk drink behavior number onlin program develop recent year chang drink german diarybas fulli autom alcohol intervent revis version program develop strong orient concept relaps prevent previous version includ feedback offer possibl interact program moreov program durat extend daysobject paper examin whether revis version chang drink effect reduc alcohol consumpt origin versionmethod effect program version compar webbas open random control trial followup survey week month registr particip recruit onlin random assign either origin revis version chang drink follow selfassess outcom use alcohol use day alcohol intak gram occurr bing drink riski drink refer past day prior survey number alcoholrel problemsresult total particip includ trial followup rate week month signific group differ found outcom howev revis version use particip origin version signific time effect detect outcom alcohol use day p alcohol intak gram p bing drink p alcoholrel problem p riski drink pconclus durat complex program play minor role reduc alcohol consumpt howev differ program usag version suggest revis version attract participantstri registr intern standard random control trial number isrctn httpwwwcontrolledtrialscomisrctn archiv webcit httpwwwwebcitationorgbfxapcut

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