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Reference: Tian, J, Gall, SL, Smith, KJ et al., (2016). Worsening dietary and physical activity behaviors do not readily explain why smokers gain weight after cessation: a cohort study in young adults. Nicotine and Tobacco Research, 19 (3), 357-366.Citable link to this page:

 

Worsening dietary and physical activity behaviors do not readily explain why smokers gain weight after cessation: a cohort study in young adults

Abstract: The relationship between smoking cessation and weight gain is well established but the underlying mechanisms remain poorly understood. We aimed to determine whether postcessation weight gain was mediated by changing health behaviors.A total of 281 smokers self-reported their demographic, smoking, and lifestyle characteristics in 2004-2006 (aged 26-36) and 2009-2011 (aged 31-41). Behaviors considered as potential mediators of weight gain were changes in consumption of breakfast, discretionary foods (servings/d), fruit and vegetables (servings/d), alcohol (g/d), takeaway food (times/wk), Diet Guideline Index score, leisure time physical activity (PA, min/wk), total PA (min/wk), time spent sitting (min/d), and TV viewing (h/d).In total, 124 smokers quit smoking during 5 years follow-up. After adjustment for age, sex, baseline body mass index, education, and follow-up length, smoking cessation was associated with average excess weight gain of 2.09kg (95% CI = 0.35-3.83). Compared with continuing smokers, quitters reported a higher Diet Guideline Index score and less consumption of alcohol at baseline and follow-up (all p < .05). In addition, there was a tendency towards healthier dietary and PA behaviors over 5 years among quitters than continuing smokers except for time spent sitting, although these differences did not reach statistical significance. Adjustment for changes in these behaviors made little difference to the magnitude of postcessation weight gain (β: 2.32kg, 95% CI = 0.54-4.10).The weight gain associated with smoking cessation was not explained by worsening dietary and PA behaviors. Future research is needed to elucidate the complex mechanisms and particularly ways it may be prevented.Fear of weight gain often discourages smokers from trying to quit but guidance on ways to most effectively avoid weight gain is lacking. It is important to identify what causes postcessation weight gain and the ways it may be prevented. The current study explored the effects of several changing dietary and PA behaviors on the relationship between smoking cessation and weight gain in 281 young Australian smokers. We found that quitters tended to adopt healthier dietary and PA behaviors than continuing smokers, so these behaviors did not readily explain the postcessation weight gain. Further investigations of other potential mechanisms are needed.

Publication status:PublishedPeer Review status:Peer reviewedVersion:Accepted Manuscript Funder: National Health and Medical Research Council   Notes:Copyright © The Author 2016. Published by Oxford University Press on behalf of the Society for Research on Nicotine and Tobacco. This is the accepted manuscript version of the article. The final version is available online from Oxford University Press at: https://doi.org/10.1093/ntr/ntw196

Bibliographic Details

Publisher: Oxford University Press

Publisher Website: http://www.oxfordjournals.org/

Journal: Nicotine and Tobacco Researchsee more from them

Publication Website: http://ntr.oxfordjournals.org/

Volume: 19

Issue: 3

Extent: 357-366

Issue Date: 03 August 2016

pages:357-366Identifiers

Doi: https://doi.org/10.1093/ntr/ntw196

Eissn: 1469-994X

Issn: 1462-2203

Uuid: uuid:19e80a8b-584a-481d-bad4-9f0b7bbc9cfa

Urn: uri:19e80a8b-584a-481d-bad4-9f0b7bbc9cfa

Pubs-id: pubs:642609 Item Description

Type: journal-article;

Language: eng

Version: Accepted ManuscriptKeywords: smoking cessation weight gain dietary habits alcohol consumption physical activity longitudinal studies

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Autor: Tian, J - - - Gall, SL - - - Smith, KJ - - - Dwyer, T - Oxford, MSD, Obstetrics and Gynaecology - - - Venn, AJ - - - - Bibliograp

Fuente: https://ora.ox.ac.uk/objects/uuid:19e80a8b-584a-481d-bad4-9f0b7bbc9cfa



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