Evidence map›Paper›PMID 34751662›Full record

Trial reportJMIR mHealth and uHealth2021

Mechanisms of Smartphone Apps for Cigarette Smoking Cessation: Results of a Serial Mediation Model From the iCanQuit Randomized Trial.

Jonathan B Bricker, Michael Levin, Raimo Lappalainen, Kristin Mull, Brianna Sullivan, Margarita Santiago-Torres

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in JMIR mHealth and uHealth, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02724462 (Randomized Trial of An Innovative Smartphone Intervention for Smoking Cessation), which is not on this map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
–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.

NCT02724462 nacompletednot on this map

Randomized Trial of An Innovative Smartphone Intervention for Smoking Cessation

TypeinterventionalSponsorFred Hutchinson Cancer CenterRan2017 to 2019Enrolled2,503ConditionsSmokingArmsSmartphone-delivered Intervention (SmartQuit), : Smartphone-delivered Intervention (Standard of care app)
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

6 authors.

Jonathan B BrickerDivision of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.ORCID 0000-0002-5694-8795
Michael LevinDepartment of Psychology, Utah State University, Logan, UT, United States.ORCID 0000-0001-5562-2366
Raimo LappalainenDepartment of Psychology, University of Jyvaskyla, Jyvaskyla, Finland.ORCID 0000-0001-6683-134X
Kristin MullDivision of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.ORCID 0000-0002-7918-3078
Brianna SullivanDivision of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.ORCID 0000-0002-4145-7459
Margarita Santiago-TorresDivision of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, United States.ORCID 0000-0001-6051-3172

Funding

Randomized Trial of an Innovative Smartphone Intervention for Smoking CessationR01CA192849 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI BRICKER, JONATHAN B · 2015 to 2019
$3.1M
6 · The paper itself

Abstract

backgroundEngagement with digital interventions is a well-known predictor of treatment outcomes, but this knowledge has had limited actionable value. Instead, learning why engagement with digital interventions impact treatment outcomes can lead to targeted improvements in their efficacy.

objectiveThis study aimed to test a serial mediation model of an Acceptance and Commitment Therapy (ACT) smartphone intervention for smoking cessation.

methodsIn this randomized controlled trial, participants (N=2415) from 50 US states were assigned to the ACT-based smartphone intervention (iCanQuit) or comparison smartphone intervention (QuitGuide). Their engagement with the apps (primary measure: number of logins) was measured during the first 3 months, ACT processes were measured at baseline and 3 months (acceptance of internal cues to smoke, valued living), and smoking cessation was measured at 12 months with 87% follow-up retention.

resultsThere was a significant serial mediation effect of iCanQuit on smoking cessation through multiple indicators of intervention engagement (ie, total number of logins, total number of minutes used, and total number of unique days of use) and in turn through increases in mean acceptance of internal cues to smoke from baseline to 3 months. Analyses of the acceptance subscales showed that the mediation was through acceptance of physical sensations and emotions, but not acceptance of thoughts. There was no evidence that the effect of the iCanQuit intervention was mediated through changes in valued living.

conclusionsIn this first study of serial mediators underlying the efficacy of smartphone apps for smoking cessation, our results suggest the effect of the iCanQuit ACT-based smartphone app on smoking cessation was mediated through multiple indicators of engagement and in turn through increases in the acceptance of physical sensations and emotions that cue smoking.

trial registrationClinical Trials.gov NCT02724462; https://clinicaltrials.gov/ct2/show/NCT02724462.

Indexed as

Acceptance and Commitment TherapyMobile ApplicationsSmoking CessationTobacco ProductsHumansSmartphoneacceptanceappcessationdigitalengagementinterventionmediationmHealth: smartphonemodelrandomized controlled trialsmoking

Identifiers

PMID34751662
PMCPMC8663588

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.