Findings

What do systematic reviews say?

313 questions · 352 findings · 23 reviews · Drugs and Alcohol

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No studies found 16 · 4.5%GRADE not reported 34 · 9.7%Very low 113 · 32.1%Low 117 · 33.2%Moderate 57 · 16.2%High 15 · 4.3%

Extended intervention vs brief intervention

Drinking Intensity · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Effectiveness of brief alcohol interventions in primary care populations 2018 · Cochrane Headline outcomes only
no estimate extracted
1 study · 147 participants
Very low

Extended intervention vs no intervention or minimal intervention

Quantity of drinking (g/week) at 12 months · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Effectiveness of brief alcohol interventions in primary care populations 2018 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 1296 participants
Moderate

Extended intervention vs no intervention or minimal intervention

Frequency of drinking (no. binges/wk) at 12 months · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Effectiveness of brief alcohol interventions in primary care populations 2018 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 456 participants
Moderate

Extended intervention vs no intervention or minimal intervention

Frequency of drinking (no. days drinking/week) at 12 months · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Effectiveness of brief alcohol interventions in primary care populations 2018 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 319 participants
Moderate

Extended intervention vs no intervention or minimal intervention

Drinking Intensity · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Effectiveness of brief alcohol interventions in primary care populations 2018 · Cochrane Headline outcomes only
no estimate extracted
1 study · 158 participants
Low

Parent‐mediated intervention vs control

Alcohol use prevalence Up to 4 years post intervention impact of family/parent interventions compared to control on the prevalence of alcohol consumption or drunkenness · parents/children

1 finding from 1 review

Family‐based prevention programmes for alcohol use in young people 2019 · Cochrane Headline outcomes only
no estimate extracted
12 studies · 7490 participants
Low

Parent‐mediated intervention vs control

Alcohol frequency Self report questionnaires Medium‐term · parents/children

1 finding from 1 review

Family‐based prevention programmes for alcohol use in young people 2019 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 1855 participants
Very low

Parent‐mediated intervention vs control

Alcohol use volume Up to 4 years post intervention impact of family/parent interventions compared to control on the volume of alcohol consumption or drunkenness · parents/children

1 finding from 1 review

Family‐based prevention programmes for alcohol use in young people 2019 · Cochrane Headline outcomes only
no estimate extracted
5 studies · 1825 participants
Low

Pharmacologic intervention vs another pharmacologic intervention

Different comparators · alcohol use disorder

1 finding from 1 review

Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
no estimate extracted
1 participants
GRADE not reported

Pharmacologic intervention vs another pharmacologic intervention

Harmful alcohol use ‐ not measured · alcohol use disorder

The review found no eligible studies for this question.

2 findings from 1 review

Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found
Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Pharmacologic intervention vs another pharmacologic intervention

Retention [ · alcohol use disorder

Pharmacologic intervention showed no clear difference in retention compared with another pharmacologic intervention (low certainty).

2 findings from 1 review

Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
RR 0.95 [0.76, 1.19]
2 studies · 190 participants
Low
Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
RR 1.02 [0.96, 1.08]
2 studies · 200 participants
Low

Psychosocial interventions vs control intervention

Frequency of alcohol misuse 6 months · Parents who use substances

1 finding from 1 review

Effectiveness of psychosocial interventions for reducing parental substance misuse 2021 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 475 participants
Moderate

Psychosocial interventions vs control intervention

Frequency of alcohol misuse 12 months · Parents who use substances

1 finding from 1 review

Effectiveness of psychosocial interventions for reducing parental substance misuse 2021 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 366 participants
Moderate

Psychosocial interventions vs control intervention

Frequency of drug use 12 months · Parents who use substances

2 findings from 1 review

Effectiveness of psychosocial interventions for reducing parental substance misuse 2021 · Cochrane Headline outcomes only
no estimate extracted
8 studies · 625 participants
Moderate
Effectiveness of psychosocial interventions for reducing parental substance misuse 2021 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 514 participants
Moderate

Other psychosocial intervention vs usual care, brief intervention, or wait list

Harmful alcohol use · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
no estimate extracted
12 studies · 2106 participants
Very low

Other psychosocial intervention vs usual care, brief intervention, or wait list

Retention [ · people with hazardous or harmful alcohol consumption

1 finding from 1 review

Psychosocial and pharmacologic interventions to reduce harmful alcohol use in low‐ and middle‐income countries 2023 · Cochrane Headline outcomes only
no estimate extracted
9 studies · 1664 participants
Very low

Brief intervention vs information only

Alcohol frequency Self report questionnaires Medium‐term · Substance‐using adolescents

1 finding from 1 review

Brief school‐based interventions and behavioural outcomes for substance‐using adolescents 2016 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 434 participants
Moderate

Brief intervention vs assessment only

Secondary outcomes related to substance use Self report questionnaires Medium‐term · Substance‐using adolescents

1 finding from 1 review

Brief school‐based interventions and behavioural outcomes for substance‐using adolescents 2016 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 242 participants
Low

Brief intervention vs information only

Alcohol quantity Self report questionnaires Medium‐term · Substance‐using adolescents

1 finding from 1 review

Brief school‐based interventions and behavioural outcomes for substance‐using adolescents 2016 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 434 participants
Moderate

Brief intervention vs information only

Cannabis dependence Self report questionnaires Medium‐term · Substance‐using adolescents

1 finding from 1 review

Brief school‐based interventions and behavioural outcomes for substance‐using adolescents 2016 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 470 participants
Moderate