Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

37 questions · 40 findings · 4 reviews · Drugs and Alcohol

No studies found 1 · 2.5%GRADE not reported 0 · 0%Very low 7 · 17.5%Low 15 · 37.5%Moderate 17 · 42.5%High 0 · 0%

Brief intervention vs treatment

Number of drinks per week · concurrent problem alcohol and illicit drug users
2 findings from 1 review

Brief motivational interviewing (BMI) vs assessment‐only to reduce alcohol consumption

25% reduction of drinking days in the past 30 days · concurrent problem alcohol and illicit drug users

Brief motivational interviewing (BMI) showed no clear difference in 25% reduction of drinking days in the past 30 days compared with assessment‐only to reduce alcohol consumption (moderate certainty).

1 finding from 1 review

Brief motivational interviewing (BMI) vs assessment‐only to reduce alcohol consumption

50% reduction of drinking days in the past 30 days · concurrent problem alcohol and illicit drug users

Brief motivational interviewing (BMI) showed no clear difference in 50% reduction of drinking days in the past 30 days compared with assessment‐only to reduce alcohol consumption (moderate certainty).

1 finding from 1 review

Brief motivational interviewing (BMI) vs assessment‐only to reduce alcohol consumption

or more drinking days' reduction in the past 30 days · concurrent problem alcohol and illicit drug users

Brief motivational interviewing (BMI) probably leads to higher or more drinking days' reduction in the past 30 days compared with assessment‐only to reduce alcohol consumption (moderate certainty).

1 finding from 1 review

Brief motivational interviewing (BMI) vs assessment‐only to reduce alcohol consumption

Retention [ · concurrent problem alcohol and illicit drug users

Brief motivational interviewing (BMI) showed no clear difference in retention ‐ end of treatment compared with assessment‐only to reduce alcohol consumption (moderate certainty).

1 finding from 1 review