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Study Title and Description

A randomized controlled trial of a group motivational interviewing intervention for adolescents with a first time alcohol or drug offense.



Key Questions Addressed
1 Evidence map
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Primary Publication Information
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TitleData
Title A randomized controlled trial of a group motivational interviewing intervention for adolescents with a first time alcohol or drug offense.
Author D'Amico EJ., Hunter SB., Miles JN., Ewing BA., Osilla KC.
Country -- Not Found --
Year -- Not Found --
Numbers Pubmed ID: 23891459

Secondary Publication Information
There are currently no secondary publications defined for this study.


Extraction Form: Evidence Map
Arms
Number Title Description Comments
1 MI Free Talk
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2 PeerGroup Usual care
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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) 14
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18
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Total sample size (in all arms) 193
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Age distribution of enrolled population (in years) 16.6
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Substance used Alcohol
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Cannabis
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Interventions studied? Behavioral
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No active treatment
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Outcome? Self report of use/abstinence and/or intensity
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Substance-related problems or symptoms scale
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Legal
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Age variation of enrolled population (in years) 1.05
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Study type RCT
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Is any arm a brief intervention (or single session)? No
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Income level of country(ies) of origin Upper income
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Results & Comparisons


Results Data
Outcome: Risks      Population: alcohol
Time Point Measure MI PeerGroup


0 months

N Analyzed 72 53
Counts 21 13
Percentage 29.2 24.5


3 months

N Analyzed 72 53
Counts 21 14
Percentage 25.3 22.6
Outcome: alcohol use days      Population: All Participants
Time Point Measure MI PeerGroup


0 months

N Analyzed 113 80
Mean 2.65 2.31
SD 1.72 1.45
SE


3 months

N Analyzed 109 78
Mean 2.80 2.24
SD 1.60 1.40
SE
Outcome: heavy drinking days      Population: All Participants
Time Point Measure MI PeerGroup


0 months

N Analyzed 113 80
Mean 2.06 1.71
SD 1.65 1.29
SE


3 months

N Analyzed 109 78
Mean 1.95 1.65
SD 1.20 1.20
SE
Outcome: Risks      Population: alcohol
Time Point Measure MI PeerGroup


0 months

N Analyzed 113 80
Mean 1.59 1.06
SD 2.68 2.33
SE


3 months

N Analyzed 109 78
Mean 1.24 0.72
SD 2.06 1.35
SE
Outcome: cannabis use days      Population: All Participants
Time Point Measure MI PeerGroup


0 months

N Analyzed 113 80
Mean 3.15 2.96
SD 2.36 2.22
SE


3 months

N Analyzed 109 78
Mean 2.75 2.38
SD 1.23 2.03
SE
Outcome: Risks      Population: cannabis
Time Point Measure MI PeerGroup


0 months

N Analyzed 113 80
Mean 1.27 0.93
SD 2.26 2.07
SE


3 months

N Analyzed 109 78
Mean 0.62 0.64
SD 1.30 1.66
SE
Outcome: Illegal behavior      Population: All Participants
Time Point Measure MI PeerGroup


0 months

N Analyzed 113 80
Mean 15.32 14.75
SD 4.54 4.29
SE


3 months

N Analyzed 109 78
Mean 12.67 12.41
SD 3.28 3.12
SE


Quality Dimensions
Dimension Value Notes Comments
Intention-to-treat-analysis: Bias due to incomplete reporting and analysis according to group allocation No
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Group similarity at baseline (selection bias): Selection bias due to dissimilarity at baseline for the most important prognostic indicators No
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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 Yes
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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 Unclear
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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. Unclear
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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
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Quality Rating
No quality rating data was found.