Evidence map›Paper›PMID 38977972›Full record

Trial reportBMC public health2024

Mediated effects of a randomised control trial for a text messaging smoking cessation intervention for online help-seekers and primary care visitors.

Joel Crawford, Jenny Blomqvist, Katarina Ulfsdotter Gunnarsson, Preben Bendtsen, Marcus Bendtsen

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
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

5 authors.

Joel CrawfordDepartment of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden. joel.crawford@liu.se.
Jenny BlomqvistDepartment of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden.
Katarina Ulfsdotter GunnarssonDepartment of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden.
Preben BendtsenDepartment of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden.
Marcus BendtsenDepartment of Health, Medicine and Caring Sciences, Linköping University, 581 83, Linköping, Sweden.

Funding

Region Östergötland LIO-896081
6 · The paper itself

Abstract

BACKGROUND AND

aimsDigital smoking cessation interventions have been shown to be effective in helping individuals achieve prolonged smoking abstinence. Nonetheless, the mechanisms that drive such effects are unclear. The current study aimed to estimate a digital smoking cessation intervention's natural direct and indirect effects.

methodsThis secondary analysis of mediated effects uses data from a randomised controlled trial which included participants who smoked at least one cigarette a week, had access to a mobile phone, and were 18 years or older. The comparator was existing smoking cessation support available to all members of the Swedish public. Primary outcomes were prolonged smoking abstinence and point prevalence of smoking abstinence, measured at 3- and 6-months post-randomisation. A counterfactual framework was used to estimate three hypothesised mediators of the intervention's effects: importance, knowledge of how to change (know-how), and confidence.

resultsBetween 18/09/20 and 16/06/22, 1012 participants were randomised. The intervention led to improved confidence and know-how, which both partially mediated the effects of the digital intervention on smoking abstinence at 3- and 6 months post-randomisation.

conclusionsA digital smoking cessation intervention was found to partially affect smoking abstinence by improving individuals' confidence in their ability to quit smoking and developing knowledge on how to quit. Face-value single-item mediator measures, lack of blinding, and attrition limit the study. Future studies should address these limitations and assess additional mechanisms mediating intervention effects.

trial registrationISRCTN13455271.

Indexed as

Primary Health CareSmoking CessationText MessagingAdultFemaleHumansMaleMediation AnalysisMiddle AgedSwedenYoung AdultDigital interventionMediatorPublic healthRandomised controlled trialSmoking cessation intervention

Identifiers

PMID38977972
PMCPMC11232307

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Registered trials

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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.