Online Alcohol Intervention Study
Author Information
Author(s): Wallace Paul, Murray Elizabeth, McCambridge Jim, Khadjesari Zarnie, White Ian R., Thompson Simon G., Kalaitzaki Eleftheria, Godfrey Christine, Linke Stuart
Primary Institution: University College London
Hypothesis
Providing access to a psychologically enhanced website would result in greater reductions in drinking and related problems than giving access to a typical alcohol website.
Conclusion
The study found no additional benefit from the psychologically enhanced website compared to a standard information website for reducing alcohol consumption.
Supporting Evidence
- Both groups showed significant reductions in alcohol consumption.
- The intervention group used the website more than the control group.
- No significant differences were found between the two groups at any follow-up point.
Takeaway
This study tested two websites to help people drink less alcohol, but both websites worked about the same, so just having access to any help can be good.
Methodology
A two-arm randomized controlled trial conducted online with participants who screened positive for hazardous alcohol consumption.
Potential Biases
Potential non-response bias due to differential response rates between intervention and control groups.
Limitations
The study did not determine whether both interventions were effective or both were ineffective, and there were high rates of attrition.
Participant Demographics
Majority were White British (84%), mean age 38 years, 57% women, and 52% educated to at least degree level.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI 0.97 to 1.10
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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