Longitudinal cohort survey of women's smoking behaviour and attitudes in pregnancy: study methods and baseline data.pdf (1.47 MB)
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Longitudinal cohort survey of women's smoking behaviour and attitudes in pregnancy: study methods and baseline data

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journal contribution
posted on 11.07.2017, 10:36 by Sophie Orton, Katharine Bowker, Sue Cooper, Felix Naughton, Michael Ussher, Kate E. Pickett, Jo Leonardi-Bee, Stephen Sutton, Nafeesa N. Dhalwani, Tim Coleman
OBJECTIVES: To report the methods used to assemble a contemporary pregnancy cohort for investigating influences on smoking behaviour before, during and after pregnancy and to report characteristics of women recruited. DESIGN: Longitudinal cohort survey. SETTING: Two maternity hospitals, Nottingham, England. PARTICIPANTS: 3265 women who attended antenatal ultrasound scan clinics were offered cohort enrolment; those who were 8-26 weeks pregnant and were currently smoking or had recently stopped smoking were eligible. Cohort enrollment took place between August 2011 and August 2012. PRIMARY AND SECONDARY OUTCOME MEASURES: Prevalence of smoking at cohort entry and at two follow-up time points (34-36 weeks gestation and 3 months postnatally); response rate, participants' sociodemographic characteristics. RESULTS: 1101 (33.7%, 95% CI 32.1% to 35.4%) women were eligible for inclusion in the cohort, and of these 850 (77.2%, 95% CI 74.6% to 79.6%) were recruited. Within the cohort, 57.4% (N=488, 95% CI 54.1% to 60.7%) reported to be current smokers. Current smokers were significantly younger than ex-smokers (p<0.05), more likely to have no formal qualifications and to not be in current paid employment compared to recent ex-smokers (p<0.001). CONCLUSIONS: This contemporary cohort, which seeks very detailed information on smoking in pregnancy and its determinants, includes women with comparable sociodemographic characteristics to those in other UK cross-sectional studies and cohorts. This suggests that future analyses using this cohort and aimed at understanding smoking behaviour in pregnancy may produce findings that are broadly generalisable.

History

Citation

BMJ Open, 2014, 4: e004915

Author affiliation

/Organisation/COLLEGE OF MEDICINE, BIOLOGICAL SCIENCES AND PSYCHOLOGY/School of Medicine

Version

VoR (Version of Record)

Published in

BMJ Open

Publisher

BMJ Publishing Group

eissn

2044-6055

Acceptance date

28/04/2014

Copyright date

2014

Available date

11/07/2017

Publisher version

http://bmjopen.bmj.com/content/4/5/e004915

Language

en