Article

Relationship between trying an electronic cigarette and subsequent cigarette experimentation in Scottish adolescents: a cohort study

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Citation

Best C, Haseen F, Currie D, Ozakinci G, MacKintosh AM, Stead M, Eadie D, MacGregor A, Pearce J, Amos A, Frank J & Haw S (2018) Relationship between trying an electronic cigarette and subsequent cigarette experimentation in Scottish adolescents: a cohort study. Tobacco Control, 27 (4), pp. 373-378. http://tobaccocontrol.bmj.com/content/early/2017/07/22/tobaccocontrol-2017-053691; https://doi.org/10.1136/tobaccocontrol-2017-053691

Abstract
Background This study examines whether young never smokers in Scotland, UK, who have tried an e-cigarette are more likely than those who have not, to try a cigarette during the following year.  Methods Prospective cohort survey conducted in four high schools in Scotland, UK during February/March 2015 (n=3807) with follow-up 1 year later. All pupils (age 11–18) were surveyed. Response rates were high in both years (87% in 2015) and 2680/3807 (70.4%) of the original cohort completed the follow-up survey. Analysis was restricted to baseline ‘never smokers’ (n=3001/3807), 2125 of whom were available to follow-up (70.8%).  Results At baseline, 183 of 2125 (8.6%) never smokers had tried an e-cigarette and 1942 had not. Of the young people who had not tried an e-cigarette at baseline, 249 (12.8%) went on to try smoking a cigarette by follow-up. This compares with 74 (40.4%) of those who had tried an e-cigarette at baseline. This effect remained significant in a logistic regression model adjusted for smoking susceptibility, having friends who smoke, family members’ smoking status, age, sex, family affluence score, ethnic group and school (adjusted OR 2.42 (95% CI 1.63 to 3.60)). There was a significant interaction between e-cigarette use and smoking susceptibility and between e-cigarette use and smoking within the friendship group.  Conclusions Young never smokers are more likely to experiment with cigarettes if they have tried an e-cigarette. Causality cannot be inferred, but continued close monitoring of e-cigarette use in young people is warranted.

Journal
Tobacco Control: Volume 27, Issue 4

StatusPublished
FundersNational Institute for Health Research
Publication date31/07/2018
Publication date online22/07/2017
Date accepted by journal25/06/2017
URLhttp://hdl.handle.net/1893/25679
PublisherBMJ Publishing Group
Publisher URLhttp://tobaccocontrol.bmj.com/…trol-2017-053691
ISSN0964-4563
eISSN1468-3318

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People

Dr Catherine Best
Dr Catherine Best

Lecturer Statistician, Health Sciences Stirling

Ms Anne Marie MacKintosh
Ms Anne Marie MacKintosh

Senior Researcher, Institute for Social Marketing

Professor Gozde Ozakinci
Professor Gozde Ozakinci

Professor in Health Psychology, Psychology

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