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

Cooper, S; Orton, S; Leonardi-Bee, J; Brotherton, E; Vanderbloemen, L; Bowker, K; Naughton, F; Ussher, M; Pickett, KE; Sutton, S; et al. Cooper, S; Orton, S; Leonardi-Bee, J; Brotherton, E; Vanderbloemen, L; Bowker, K; Naughton, F; Ussher, M; Pickett, KE; Sutton, S; Coleman, T (2017) Smoking and quit attempts during pregnancy and postpartum: a longitudinal UK cohort. BMJ Open, 7 (11). e018746. ISSN 2044-6055 https://doi.org/10.1136/bmjopen-2017-018746
SGUL Authors: Ussher, Michael Henry

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Abstract

OBJECTIVES: Pregnancy 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. DESIGN: Longitudinal cohort survey with questionnaires at baseline (8-26 weeks' gestation), late pregnancy (34-36 weeks) and 3 months after delivery. SETTING: Two maternity hospitals in one National Health Service hospital trust, Nottingham, England. PARTICIPANTS: 850 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. RESULTS: Smoking 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). CONCLUSIONS: Many 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.

Item Type: Article
Additional Information: © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted. This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/4.0/
Keywords: longitudinal research, postpartum relapse, pregnancy, quit attempts, smoking cessation, survey research
SGUL Research Institute / Research Centre: Academic Structure > Population Health Research Institute (INPH)
Journal or Publication Title: BMJ Open
ISSN: 2044-6055
Language: eng
Dates:
DateEvent
15 November 2017Published Online
1 November 2017Published
28 September 2017Accepted
Publisher License: Creative Commons: Attribution 4.0
Projects:
Project IDFunderFunder ID
RP-PG 0109-10020National Institute for Health Researchhttp://dx.doi.org/10.13039/501100000272
UNSPECIFIEDBritish Heart Foundationhttp://dx.doi.org/10.13039/501100000274
UNSPECIFIEDCancer Research UKhttp://dx.doi.org/10.13039/501100000289
UNSPECIFIEDEconomic and Social Research Councilhttp://dx.doi.org/10.13039/501100000269
UNSPECIFIEDMedical Research Councilhttp://dx.doi.org/10.13039/501100000265
PubMed ID: 29146659
Go to PubMed abstract
URI: http://openaccess.sgul.ac.uk/id/eprint/109227
Publisher's version: https://doi.org/10.1136/bmjopen-2017-018746

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