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Related Experiment Videos

Web-based self-help for problem drinkers: a pragmatic randomized trial.

Heleen Riper1, Jeannet Kramer, Filip Smit

  • 1Trimbos Institute, Utrecht, The Netherlands. hriper@trimbos.nl

Addiction (Abingdon, England)
|January 18, 2008
PubMed
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Web-based self-help interventions effectively reduce problem drinking in adults. This online program significantly lowered weekly alcohol consumption compared to a control group, demonstrating its community-wide effectiveness.

Area of Science:

  • Public Health
  • Psychology
  • Digital Health

Background:

  • Self-help interventions for problem drinkers are effective.
  • The efficacy of internet-delivered self-help interventions remains to be fully established.

Purpose of the Study:

  • To evaluate the effectiveness of a web-based self-help intervention for problem drinkers in the general population.
  • To compare the intervention's outcomes against an online psychoeducational brochure control group.

Main Methods:

  • A pragmatic randomized controlled trial was conducted with 261 adult problem drinkers.
  • Participants were randomized to a 6-week interactive, web-based "Drinking Less" (DL) intervention or a control group receiving a psychoeducational brochure (PBA).
  • Outcomes assessed at 6-month follow-up included reduction to normative drinking levels and mean weekly alcohol consumption.

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Main Results:

  • 17.2% of the DL intervention group achieved normative drinking levels, versus 5.4% in the PBA control group (OR=3.66, P=0.006).
  • The DL group showed a significantly greater reduction in mean weekly alcohol consumption (difference of 12.0 standardized units, P < 0.001).
  • The number needed to treat was 8.5, indicating a favorable treatment effect.

Conclusions:

  • This study provides evidence for the effectiveness of a web-based, therapist-guided self-help intervention for problem drinking.
  • The intervention successfully reduced problem drinking in a community sample of self-referred adults.
  • This represents one of the first randomized controlled trials of its kind for this population.