Evidence map›Paper›PMID 29146659›Full record

ArticleBMJ open2017

Smoking and quit attempts during pregnancy and postpartum: a longitudinal UK cohort.

Sue Cooper, Sophie Orton, Jo Leonardi-Bee, Emma Brotherton, Laura Vanderbloemen, Katharine Bowker, Felix Naughton, Michael Ussher, Kate E Pickett, Stephen Sutton and 1 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
5.3field-weighted citation impact, top 4% of its field
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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Contingency Management Versus Psychotherapy for Prenatal Smoking Cessation: A Meta-Analysis of Randomized Controlled Trials.Women's health issues : official publication of the Jacobs Institute of Women's Health
    Pooled it
  3. Trial
  4. Trajectories of Return to Cigarette Smoking Up to 1 Year Postpartum Among People Who Quit Smoking During Pregnancy.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2023
    Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. Article
  10. Article
  11. 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
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The Relationship Between Reported Daily Nicotine Dose from NRT and Daily Cigarette Consumption in Pregnant Women Who Smoke in an Observational Cohort Study.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
    Observational
  17. Article
  18. Nicotine on the developing brain.Pharmacological research · 2023
    Review
  19. Article
  20. 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

11 authors at 6 institutions in 4 countries.

Sue CooperDivision of Primary Care, University of Nottingham, University Park, Nottingham, UK.ORCID http://orcid.org/0000-0002-1994-6395
Sophie OrtonDivision of Primary Care, University of Nottingham, University Park, Nottingham, UK.
Jo Leonardi-BeeDivision of Epidemiology and Public Health, University of Nottingham, Nottingham, UK.
Emma BrothertonDivision of Primary Care, University of Nottingham, University Park, Nottingham, UK.
Laura VanderbloemenDepartment of Primary Care and Public Health, Imperial College London, London, UK.
Katharine BowkerDivision of Primary Care, University of Nottingham, University Park, Nottingham, UK.
Felix NaughtonSchool of Health Sciences, University of East Anglia, Norwich, Norfolk, UK.
Michael UssherPopulation Health Research Institute, St George's University of London, London, UK.
Kate E PickettDepartment of Health Sciences, University of York, York, UK.
Stephen SuttonBehavioural Science Group, University of Cambridge, Cambridge, UK.
Tim ColemanDivision of Primary Care, University of Nottingham, University Park, Nottingham, UK.
University of Nottingham · GBDepartment of Medical Sciences · BYImperial College London · GBSt George's, University of London · GBUniversity of Cambridge · GBUniversity of East Anglia · GB

Funding

Department of Health RP-PG-0109-10020Medical Research Council MR/K023195/1
6 · The paper itself

Abstract

objectivesPregnancy motivates women to try stopping smoking, but little is known about timing of their quit attempts and how quitting intentions change during pregnancy and postpartum. Using longitudinal data, this study aimed to document women's smoking and quitting behaviour throughout pregnancy and after delivery.

designLongitudinal cohort survey with questionnaires at baseline (8-26 weeks' gestation), late pregnancy (34-36 weeks) and 3 months after delivery.

settingTwo maternity hospitals in one National Health Service hospital trust, Nottingham, England.

participants850 pregnant women, aged 16 years or over, who were current smokers or had smoked in the 3 months before pregnancy, were recruited between August 2011 and August 2012. OUTCOME MEASURES: Self-reported smoking behaviour, quit attempts and quitting intentions.

resultsSmoking rates, adjusting for non-response at follow-up, were 57.4% (95% CI 54.1 to 60.7) at baseline, 59.1% (95% CI 54.9 to 63.4) in late pregnancy and 67.1% (95% CI 62.7 to 71.5) 3 months postpartum. At baseline, 272 of 488 current smokers had tried to quit since becoming pregnant (55.7%, 95% CI 51.3 to 60.1); 51.3% (95% CI 44.7 to 58.0) tried quitting between baseline and late pregnancy and 27.4% (95% CI 21.7 to 33.2) after childbirth. The percentage who intended to quit within the next month fell as pregnancy progressed, from 40.4% (95% CI 36.1 to 44.8) at baseline to 29.7% (95% CI 23.8 to 35.6) in late pregnancy and 14.2% (95% CI 10.0 to 18.3) postpartum. Postpartum relapse was lower among women who quit in the 3 months before pregnancy (17.8%, 95% CI 6.1 to 29.4) than those who stopped between baseline and late pregnancy (42.9%, 95% CI 24.6 to 61.3).

conclusionsMany pregnant smokers make quit attempts throughout pregnancy and postpartum, but intention to quit decreases over time; there is no evidence that smoking rates fall during gestation.

Indexed as

Postpartum PeriodPregnancyAdultEnglandFemaleGestational AgeHumansLogistic ModelsLongitudinal StudiesMotivationSelf ReportSmokingSmoking CessationYoung Adultlongitudinal researchpostpartum relapsepregnancyquit attemptssmoking cessationsurvey research

Identifiers

PMID29146659
PMCPMC5695489
OpenAlexW2769851605

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.