What is the Active Ingredient in Personalized Feedback Interventions for Problem Drinkers? A Randomized Controlled Trial

Overview

The major objective of this project is to conduct a randomized controlled trial comparing the impact of the normative feedback and other personalized feedback components of the Check Your Drinking (CYD) Internet-based intervention in the general population. Eligible problem drinking participants will be randomly assigned to one of four conditions in a 2 by 2 design – to receive just the normative feedback component of the CYD intervention, just the other personalized feedback information, to a no intervention control condition, or to receive the full CYD intervention. The no intervention control condition will not be sent any intervention materials but will instead be sent a list of the different components of the CYD feedback and will be asked to think about how useful they would find each of them. All participants will be followed-up at 3 months.

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Factorial Assignment
    • Primary Purpose: Treatment
    • Masking: Single (Participant)
  • Study Primary Completion Date: June 2013

Interventions

  • Behavioral: Check Your Drinking (CYD) personalized feedback intervention
    • The CYD provides problem drinkers with a personalized summary of their drinking that compares his or her drinking with that of the general population. The CYD also provides an assessment of the severity of the person’s drinking problem.

Arms, Groups and Cohorts

  • Experimental: Full personalized feedback
    • Participant provided with the full CYD personalized feedback summary.
  • Experimental: Only normative feedback
    • Participant provided with just the normative feedback component of the CYD personalized feedback summary.
  • Experimental: Just other personalized feedback
    • Participant provided with all the other personalized feedback components of the CYD intervention (i.e., no normative feedback).
  • No Intervention: No intervention control
    • Participant provided with a list describing the components of the CYD intervention but not provided any personalized feedback.

Clinical Trial Outcome Measures

Primary Measures

  • Drinks in a typical week
    • Time Frame: 3 months
    • Number of drinks in a typical week
  • AUDIT-C score
    • Time Frame: 3 months
    • Composite measure of three drinking items – frequency of drinking, drinks per drinking day, frequency of 5+ drinking days
  • Highest number of drinks on one occasion
    • Time Frame: 3 months
    • Highest number of drinks on one occasion in the past 3 months

Participating in This Clinical Trial

Inclusion Criteria

  • problem drinkers as measured by an AUDIT score of 8 or more Exclusion Criteria:

  • none

Gender Eligibility: All

Minimum Age: 19 Years

Maximum Age: N/A

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Centre for Addiction and Mental Health
  • Provider of Information About this Clinical Study
    • Principal Investigator: John Cunningham, Principal Investigator – Centre for Addiction and Mental Health
  • Overall Official(s)
    • John Cunningham, Ph.D., Principal Investigator, Centre for Addiction and Mental Health

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