Evidence map›Paper›PMID 38812955›Full record

ArticleInternet interventions2024

Randomized controlled trial of a smartphone app designed to reduce unhealthy alcohol consumption.

John A Cunningham, Alexandra Godinho, Christina Schell, Joseph Studer, Jeffrey D Wardell, Claire Garnett, Nicolas Bertholet

Registry-linked trialAbstract read
In one paragraph

Article in Internet interventions, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04745325 (Assessing the Effectiveness and Mechanisms of Action of a Smartphone App Designed to Reduce Unhealthy Alcohol Consumption), which is not on this map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04745325 nacompletednot on this map

Assessing the Effectiveness and Mechanisms of Action of a Smartphone App Designed to Reduce Unhealthy Alcohol Consumption: Randomized Controlled Trial

TypeinterventionalSponsorCentre for Addiction and Mental HealthRan2021 to 2023Enrolled761ConditionsAlcohol ConsumptionArmsSMAART Canada smartphone app
3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Trial
  2. Trial
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  5. Observational
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  7. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

John A CunninghamNational Addiction Centre, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, United Kingdom.
Alexandra GodinhoHumber River Health, Canada.
Christina SchellCentre for Addiction and Mental Health, Toronto, Canada.
Joseph StuderAddiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Vaud, Switzerland.
Jeffrey D WardellCentre for Addiction and Mental Health, Toronto, Canada.
Claire GarnettSchool of Psychological Science, University of Bristol, Bristol, United Kingdom.
Nicolas BertholetAddiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Vaud, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and aims: Unhealthy alcohol use is common and causes tremendous harm. Most people with unhealthy alcohol use will never seek formal alcohol treatment. As an alternative, smartphone apps have been developed as one means to provide help to people concerned about their alcohol use. The aim of this study was to test the efficacy of a smartphone app targeting unhealthy alcohol consumption in a general population sample. Methods: Participants were recruited from across Canada using online advertisements. Eligible participants who consented to the trial were asked to download a research-specific version of the app and were provided with a code that unlocked it (a different code for each participant to prevent sharing). Those who entered the code were randomized to one of two different versions of the app: 1) the Full app containing all intervention modules; or 2) the Educational only app, containing only the educational content of the app. Participants were followed-up at 6 months. The primary outcome variable was number of standard drinks in a typical week. Secondary outcome variables were frequency of heavy drinking days and experience of alcohol-related problems. Results: A total of 761 participants were randomized to a condition. The follow-up rate was 81 %. A generalized linear mixed model revealed that participants receiving the full app reduced their typical weekly alcohol consumption to a greater extent than participants receiving the educational only app (incidence rate ratio 0.89; 95 % confidence interval 0.80 to 0.98). No significant differences were observed in the secondary outcome variables ( Discussion and conclusion: The results of this trial provide some supportive evidence that smartphone apps can reduce unhealthy alcohol consumption. As this is the second randomized controlled trial demonstrating an impact of this same app (the first one targeted unhealthy alcohol use in university students), increased confidence is placed on the potential effectiveness of the smartphone app employed in the current trial.ClinicalTrials.org number: NCT04745325.

Indexed as

AlcoholRandomized controlled trialSmartphone app

Identifiers

PMID38812955
PMCPMC11133919

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.