Alcohol and Alcoholism Advance Access published online on January 16, 2009
At 3, 6 and 12 months, 78%, 69% and 61% of the study participants, respectively, responded to the follow-up. The intention-to-treat (ITT) results revealed significant reductions in all the outcome measures. The reductions occurred during the first 3 months, after which the changes were non-significant
The results are inline with previous studies with mostly shorter follow-up periods suggesting that Internet-based self-assessment services can be useful tools in reducing excessive drinking. A randomized controlled trial would, however, increase our certainty about the causes of the observed changes.
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