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The association between quitting smoking and weight gain: a systemic review and meta-analysis of prospective cohort studies
Citation
Tian, J and Venn, A and Otahal, P and Gall, S, The association between quitting smoking and weight gain: a systemic review and meta-analysis of prospective cohort studies, Obesity Reviews, 16, (10) pp. 883-901. ISSN 1467-7881 (2015) [Refereed Article]
Copyright Statement
© 2015 World Obesity
Abstract
This systematic review and meta-analysis aimed to quantify weight gain after smoking cessation and the difference in weight gain between quitters and continuing smokers. Five electronic databases were searched before January 2015. Population-based prospective cohort studies were included if they recorded the weight change of adult smokers from baseline (before smoking cessation) to follow-up (at least 3 months after cessation). Thirty-five cohort studies were identified, including 63,403 quitters and 388,432 continuing smokers. The mean weight gain was 4.10 kg (95% confidence interval [CI]: 2.69, 5.51) and body mass index (BMI) gain was 1.14 kg m−2 (95% CI: 0.50, 1.79) among quitters. Compared with continuing smoking, quitting smoking was significantly associated with absolute weight (adjusted mean difference [MD]: 2.61 kg; 95% CI: 1.61, 3.60) and BMI gain (adjusted MD: 0.63 kg m−2; 95% CI: 0.46, 0.80). Subgroup analyses using geographic region found that the difference in weight gain was considerably greater in studies from North America than from Asia. Follow-up length was identified as a source of heterogeneity, such that studies with longer follow-up showed greater difference in weight gain. Effective strategies are needed to encourage smokers to quit irrespective of potential weight gain and to help quitters avoid excess weight gain.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | cohort studies, meta-analysis, smoking cessation, weight gain |
| Research Division: | Health Sciences |
| Research Group: | Epidemiology |
| Research Field: | Epidemiology not elsewhere classified |
| Objective Division: | Health |
| Objective Group: | Clinical health |
| Objective Field: | Clinical health not elsewhere classified |
| UTAS Author: | Tian, J (Dr Jing Tian) |
| UTAS Author: | Venn, A (Professor Alison Venn) |
| UTAS Author: | Otahal, P (Mr Petr Otahal) |
| UTAS Author: | Gall, S (Associate Professor Seana Gall) |
| ID Code: | 101875 |
| Year Published: | 2015 |
| Web of Science® Times Cited: | 76 |
| Deposited By: | Menzies Institute for Medical Research |
| Deposited On: | 2015-07-14 |
| Last Modified: | 2017-11-04 |
| Downloads: | 0 |
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