Evidence map›Paper›PMID 30011020›Full record

ArticleTranslational behavioral medicine2019

Randomized factorial experiment of components of the SmokeFree Baby smartphone application to aid smoking cessation in pregnancy.

Ildiko Tombor, Emma Beard, Jamie Brown, Lion Shahab, Susan Michie, Robert West

Abstract read
In one paragraph

Article in Translational behavioral medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 4 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.

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

20 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  10. Digitalizing Specialist Smoking Cessation Support in Pregnancy: Views of Pregnant Smokers.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2025
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  17. Barriers to Building More Effective Treatments: Negative Interactions Amongst Smoking Intervention Components.Clinical psychological science : a journal of the Association for Psychological Science · 2021
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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.

Ildiko TomborDepartment of Behavioural Science and Health, University College London, UK.
Emma BeardDepartment of Behavioural Science and Health, University College London, UK.
Jamie BrownDepartment of Behavioural Science and Health, University College London, UK.
Lion ShahabDepartment of Behavioural Science and Health, University College London, UK.
Susan MichieDepartment of Clinical, Educational and Health Psychology, University College London, UK.
Robert WestDepartment of Behavioural Science and Health, University College London, UK.

Funding

Cancer Research UK 22962Medical Research Council MR/K023195/1
6 · The paper itself

Abstract

Smartphone applications (apps) might be able to reach pregnant smokers who do not engage with face-to-face support. However, we do not know how far pregnant smokers will engage with smoking cessation apps or what components are likely to be effective. This study aimed to assess pregnant smokers' engagement with the SmokeFree Baby app (v1) and to assess the short-term efficacy of selected components ("modules") for smoking abstinence. Positive outcomes would provide a basis for further development and evaluation. SmokeFree Baby was developed drawing on behavior change theories and relevant evidence. Pregnant smokers (18+) who were interested in quitting and set a quit date were recruited. Following multiphase optimization development principles, participants (N = 565) were randomly allocated to one of 32 (2 × 2 × 2 × 2 × 2) experimental groups in a full factorial design to evaluate five modules (each in minimal and full version: identity, health information, stress management, face-to-face support, and behavioral substitution). Measures of engagement included duration and frequency of engagement with the app. Smoking abstinence was measured by self-reported number of smoke-free days up to 4 weeks from the quit date. Participants engaged with the app for a mean of 4.5 days (SD = 8.5) and logged in a mean of 2.9 times (SD = 3.1). Main effects of the modules on the number of smoke-free days were not statistically significant (identity: p = .782, health information: p = .905, stress management: p = .103, face-to-face support: p = .397, behavioral substitution: p = .945). Despite systematic development and usability testing, engagement with SmokeFree Baby (v1) was low and the app did not appear to increase smoking abstinence during pregnancy.

Indexed as

CounselingFemaleHealth BehaviorHumansMobile ApplicationsPatient ParticipationPregnancySelf ReportSmartphoneSmokersSmoking CessationEngagementFactorial experimentIntervention optimizationPregnant smokersSmartphone appSmoking cessation

Identifiers

PMID30011020
PMCPMC6629841

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.