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

Cooper, Sue and Orton, Sophie and Leonardi-Bee, Jo and Brotherton, Emma and Vanderbloemen, Laura and Bowker, Katharine and Naughton, Felix and Ussher, Michael and Pickett, Kate E. and Sutton, Stephen and Coleman, Tim (2017) Smoking and quit attempts during pregnancy and postpartum: a longitudinal UK cohort. BMJ Open, 7 (11). e018746/1-e018746/12. ISSN 2044-6055

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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
Keywords: Smoking cessation; Pregnancy; Longitudinal research; Quit attempts; Postpartum relapse; Survey research
Schools/Departments: University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Primary Care
University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Medicine > Division of Epidemiology and Public Health
Identification Number: 10.1136/bmjopen-2017-018746
Depositing User: Eprints, Support
Date Deposited: 20 Oct 2017 10:09
Last Modified: 19 Nov 2017 17:40
URI: http://eprints.nottingham.ac.uk/id/eprint/47407

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