Journal article

Changes in Smoking and Vaping over 18 Months among Smokers and Recent Ex-Smokers: Longitudinal Findings from the 2016 and 2018 ITC Four Country Smoking and Vaping Surveys

Shannon Gravely, Gang Meng, K Michael Cummings, Andrew Hyland, Ron Borland, David Hammond, Richard J O'Connor, Maciej L Goniewicz, Karin A Kasza, Ann McNeill, Mary E Thompson, Sara C Hitchman, David T Levy, James F Thrasher, Anne CK Quah, Nadia Martin, Janine Ouimet, Christian Boudreau, Geoffrey T Fong

International Journal of Environmental Research and Public Health | MDPI | Published : 2020

Abstract

This descriptive study of smokers (smoked at least monthly) and recent ex-smokers (quit for ≤2 years) examined transitions over an 18 month period in their smoking and vaping behaviors. Data are from Waves 1 (W1: 2016) and 2 (W2: 2018) of the ITC Four Country Smoking and Vaping Survey, a cohort study of adult (≥18+) smokers, concurrent users (smoke and vape), and recent ex-smokers from Australia, Canada, England, and the United States (US). Respondents (N = 5016) were classified according to their smoking and vaping status, which resulted in eight subgroups: (1) exclusive daily smokers (2) exclusive non-daily smokers; (3-6) concurrent users (subdivided into four groups by each combination of..

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Grants

Awarded by US National Cancer Institute


Awarded by Canadian Institutes of Health Research


Awarded by National Health and Medical Research Council of Australia


Awarded by Ontario Institute for Cancer Research


Awarded by Tobacco Centers of Regulatory Science US National Cancer Institute grant


Funding Acknowledgements

This study was supported by grants from the US National Cancer Institute (P01 CA200512), the Canadian Institutes of Health Research (FDN-148477), and the National Health and Medical Research Council of Australia (APP 1106451). GTF was supported by a Senior Investigator Award from the Ontario Institute for Cancer Research (IA-004). RO and AH are supported by a Tobacco Centers of Regulatory Science US National Cancer Institute grant (U54 CA238110).