Longitudinal associations between e-cigarette use, cigarette smoking, physical activity and screen time among Canadian adolescents
Mini-Oral Presentation C3.17
DOI:
https://doi.org/10.14288/hfjc.v14i3.791Keywords:
Vaping, Tobacco Smoking, 24-Hour Movement Guidelines, COMPASSAbstract
Background: Cross-sectional studies have suggested that among adolescents, e-cigarette use may be protective and cigarette smoking may be harmful in terms of movement behaviors and sport participation. Purpose: To examine longitudinal associations between e-cigarette use, cigarette smoking, physical activity, and recreational screen time in a cohort of Canadian adolescents (grades 9-12). Methods: Data from 5,951 adolescents who participated in COMPASS 2015–16(baseline) and 2017–18(follow-up) were used. Exposures included e-cigarette use and cigarette smoking. Outcomes included cut-points for moderate- to vigorous- physical activity (MVPA; 60 min/d), muscular strengthening exercises (MSE; 3 time/wk), participation in sport (SP; intramural or competitive), and recreational screen time (ST; 430 min/day). Generalized linear mixed models were performed. Results: E-cigarette use (16.6% to 39.2%) and cigarette smoking (0.9% to 4.7%) increased from baseline to follow-up, while a decrease was observed for MVPA (49.8 to 42.1%), MSE (54.0 to 45.3%), and SP (70.8 to 61.3%). New e-cigarette use at follow-up was associated with maintenance of SP and meeting MVPA/MSE cut-points, but also with increased ST. New cigarette smoking at follow-up was associated with maintaining high ST and low SP. Cigarette smoking at baseline and follow-up was associated with maintaining high ST, low MSE, and low SP. Cigarette smoking cessation at follow-up was associated with increasing MVPA and MSE, decreasing ST, and maintaining low SP. Conclusion: E-cigarette use can have a protective or harmful effect on movement behaviors depending on the movement behavior in question, with protective effects for PA, but harmful effects for ST. Funding: The COMPASS study has been supported by a bridge grant from the CIHR Institute of Nutrition, Metabolism and Diabetes (INMD) through the “Obesity – Interventions to Prevent or Treat” priority funding awards (OOP-110788; awarded to SL), an operating grant from the CIHR Institute of Population and Public Health (IPPH) (MOP-114875; awarded to SL), a CIHR Project Grant (PJT-148562; awarded to SL) and by a research funding arrangement with Health Canada (#1617-HQ000012; awarded to SL). Dr. Leatherdale (APHC201405CPP-329323-116339) is a Chair in Applied Public Health Research funded by the Public Health Agency of Canada in partnership with CIHR. The funding bodies had no role in the design of the study, the collection, analysis, or interpretation of data, or the writing of the manuscript.
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Copyright (c) 2021 Dylan S. Irvine, Ellen McGarity-Shipley, Eun-Young Lee, Ian Janssen, Scott T. Leatherdale
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