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Study Title and Description

Brief Motivational Intervention for Underage Young Adult Drinkers: Results from a Randomized Clinical Trial.



Key Questions Addressed
1 Evidence map
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Primary Publication Information
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TitleData
Title Brief Motivational Intervention for Underage Young Adult Drinkers: Results from a Randomized Clinical Trial.
Author Colby SM., Orchowski L., Magill M., Murphy JG., Brazil LA., Apodaca TR., Kahler CW., Barnett NP.
Country Center for Alcohol and Addiction Studies , Brown University, Providence, Rhode Island.
Year 2018
Numbers Pubmed ID: 29750362

Secondary Publication Information
UI Title Author Country Year
How does brief motivational intervention change heavy drinking and harm among underage young adult drinkers? Magill M., Colby SM., Orchowski L., Murphy JG., Hoadley A., Brazil LA., Barnett NP. Center for Alcohol and Addiction Studies, Brown University. 2017
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Motivational interviewing technical process and moderated relational process with underage young adult heavy drinkers. Magill M., Janssen T., Mastroleo N., Hoadley A., Walthers J., Barnett N., Colby S. Center for Alcohol and Addiction Studies, Brown University. 2019
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Extraction Form: Evidence Map
Arms
Number Title Description Comments
1 MI
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2 TAU attention control
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Design Details
Question... Follow Up Answer Follow-up Answer
Should this citation be included? Yes
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Does this paper originate from a primary study of interest? No
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Ages eligible (in years) 17
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20
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Total sample size (in all arms) 168
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Age distribution of enrolled population (in years)
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18
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Substance used Alcohol
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Interventions studied? Behavioral
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Outcome? Objective measurement of use/abstinence and/or intensity
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Self report of use/abstinence and/or intensity
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Substance-related problems or symptoms scale
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Age variation of enrolled population (in years)
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17
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20
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Study type RCT
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Is any arm a brief intervention (or single session)? Yes
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Income level of country(ies) of origin Upper income
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Results & Comparisons


Results Data
Mean Difference 95% CI low 95% CI high P-Value
Outcome: alcohol use days      Population: All Participants Between-Arm Comparisons
Time Point Measure MI TAU Comparison Measure


0 months

SD 14.41 18.89
Percentage 30.34 26.74
N Analyzed 83 84


1.5 months

Percentage 19.17 23.63
SD 16.33 18.66
N Analyzed 80 81


3 months

Percentage 14.32 19.52 -0.33
SD 12.23 17.92 -0.59
N Analyzed 82 84 -0.08
0.011
Mean Difference 95% CI low 95% CI high P-Value
Outcome: heavy drinking days      Population: All Participants Between-Arm Comparisons
Time Point Measure MI TAU Comparison Measure MI vs. TAU


0 months

SD 14.48 13.95
Percentage 18.76 17.3
N Analyzed 83 84


1.5 months

SD 13.3 15.8
Percentage 10.03 16.09
N Analyzed 80 82


3 months

SD 9.98 13.94 -0.53
Percentage 8.04 13.11 -0.79
N Analyzed 80 81 -0.03
<0.001
Outcome: Risks      Population: alcohol
Time Point Measure MI TAU


0 months

N Analyzed 83 84
Mean 8.46 6.99
SD 4.35 4.48


6 weeks

N Analyzed 83 84
Mean 5.79 6.08
SD 5.14 4.08


3 months

N Analyzed 83 84
Mean 4.76 5.97
SD 4.5 4.09


Quality Dimensions
Dimension Value Notes Comments
Intention-to-treat-analysis: Bias due to incomplete reporting and analysis according to group allocation Borderline 1/167 excluded for not "at least one f/up).
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Group similarity at baseline (selection bias): Selection bias due to dissimilarity at baseline for the most important prognostic indicators No Adverse alcohol consequences. Not accounted for.
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Co-interventions (performance bias): Performance bias because co-interventions were different across groups Yes
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Compliance (performance bias): Performance bias due to inappropriate compliance with interventions across groups No Data
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Timing of outcome assessments (detection bias): Detection bias because important outcomes were not measured at the same time across groups Yes
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Additional Bias: Bias due to problems not covered elsewhere in the table. If yes, describe them in the Notes. No
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Random sequence generation (selection bias): Selection bias (biased allocation to interventions) due to inadequate generation of a randomized sequence Low Urn N>100
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Allocation concealment (selection bias): Selection bias (biased allocation to interventions) due to inadequate concealment of allocations prior to assignment Unclear
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Blinding of participants (performance bias): Performance bias due to knowledge of the allocated interventions by participants during the study High
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Blinding of personnel/ care providers (performance bias): Performance bias due to knowledge of the allocated interventions by personnel/care providers during the study. High
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Blinding of outcome assessor (detection bias): Detection bias due to knowledge of the allocated interventions by outcome assessors. Low
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Incomplete outcome data (attrition bias): Attrition bias due to amount, nature or handling of incomplete outcome data Low
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Selective Reporting (reporting bias): Reporting bias due to selective outcome reporting need to check Per NCT01546025: Use (TFBL), Brief Young Adult Alcohol Consequences Questionnaire, Help Seeking, Drinking Reduction Strategies, Employment Outcomes, Life Satisfaction, Adolescent Reinforcement Survey. Per Colby 2018: total number of standard drinks consumed; frequency of drinking; frequency of heavy drinking (>4/5 drinks per occasion by females/males), estimated blood alcohol concentration (BAC) associated with "typical" drinking occasion; estimated peak BAC (associated with heaviest drinking occasion); and total number of adverse alcohol consequences experienced.
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Quality Rating
No quality rating data was found.