TROSA: Innovative Residential Treatment for Substance Abusers
1 A randomized controlled trial of an Internet-based intervention for alcohol abusers: Twelve-month...
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Transcript of 1 A randomized controlled trial of an Internet-based intervention for alcohol abusers: Twelve-month...
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A randomized controlled trial of an Internet-based intervention for alcohol abusers: Twelve-month follow-up results
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Check Your Drinking screener
www.checkyourdrinking.net
22 Item Survey Contains: AUDIT Drinking on each day of a typical week Greatest amount on a single occasion Experience of psychosocial
consequences Demographics
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CheckYourDrinking.net 2.0
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Final Report
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Recruitment by telephone
Use RDD telephone survey to identify at-risk drinkers Identify those who are hypothetically interested
in an Internet program that provides a summary of the person’s drinking and compares it to the drinking of other Canadians Home access to the Internet Ask these people if they are interested in taking part in
a study to help us revise and evaluate self-help materials
Send description and consent form Randomly assign to receive or not receive intervention Follow-up to assess differences at three, six and twelve
months ($20 payment at each time point)
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Subject recruitment
RDD screening survey of 8,467 respondents Excluded:
AUDIT-C < 4: 5,721 Not interested in online self-help materials: 1,936 No home internet: 100 Did not agree to view consent form: 316 Viewed consent form but did not sign and return: 209
Randomized to condition: 185Complete 3, 6 and 12 month follow-up data available for 86% of sample
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Data analysis challenges
Skewed data – trimmed weekly drinking variable; combined other drinking variables into AUDIT-C scale as outcome measures
Missing data – replaced missing values with respective baseline values
Wide range of problem severity – split sample into AUDIT > 11 versus AUDIT 4-10
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Drinks per week
02468
1012141618202224
Baseline 3 month 6 month 12 month
Internet
Control
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AUDIT-C score
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Baseline 3 month 6 month 12 month
Internet
Control
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Issues running the study
One-third of people assigned to experimental condition are not accessing the website Study becomes one testing the
impact of providing access to the intervention
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Interpretting the results
Me: Impact of the CYD can still be seen at 12 months; however, it is diminishedMy friend and esteemed colleague, Keith:
"After scaling K2 entirely whilst walking on his hands without any equipment or clothing, Dr. Cunningham commented to the world media that yes, what he had done was no doubt easier than doing the same thing on Mount Everest, a failure he knew he would brood over for the rest of his days."
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Collaborators, Funding, and Conflict of Interest
Collaborators:Keith Humphreys, Cameron Wild, Joanne
Cordingley, & Trevor van Mierlo
Sources of Funding:National Institute on Alcohol Abuse and
Alcoholism
Conflict of InterestDr. Cunningham has acted as a paid consultant
to V-CC Inc., the owner of the Check Your Drinking software.