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Prevalence of vaping and smoking among adolescents in Canada, England, and the United States: repeat national cross sectional surveys
OBJECTIVE: To examine differences in vaping and smoking prevalence among adolescents in Canada, England, and the United States. DESIGN: Repeat cross sectional surveys. SETTING: Online surveys in Canada, England, and the US. PARTICIPANTS: National samples of 16 to 19 year olds in 2017 and 2018, recru...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group Ltd.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6582265/ https://www.ncbi.nlm.nih.gov/pubmed/31221636 http://dx.doi.org/10.1136/bmj.l2219 |