Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England

Objectives To examine the prevalence of, and sociodemographic and smoking-related characteristics associated with, long-term e-cigarette use compared with long-term nicotine replacement therapy (NRT) use.Design Cross-sectional and prospective survey, the Smoking Toolkit Study, with baseline data col...

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Main Authors: Sarah E Jackson, Lion Shahab, Emma Beard, Emily Hill
Format: Article
Language:English
Published: BMJ Publishing Group 2019-10-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/9/10/e029252.full
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author Sarah E Jackson
Lion Shahab
Emma Beard
Emily Hill
author_facet Sarah E Jackson
Lion Shahab
Emma Beard
Emily Hill
author_sort Sarah E Jackson
collection DOAJ
description Objectives To examine the prevalence of, and sociodemographic and smoking-related characteristics associated with, long-term e-cigarette use compared with long-term nicotine replacement therapy (NRT) use.Design Cross-sectional and prospective survey, the Smoking Toolkit Study, with baseline data collected between September 2014 and September 2016 and follow-ups at 6 and 12 months.Setting England.Participants Population representative sample of 40 933 adults aged 16+ years.Main outcome measures Prevalence of long-term (≥12 months) use of e-cigarettes and NRT by retrospective self-report among baseline respondents (all adults, n=40 933; smokers, n=8406) and current use at baseline, 6 months and 12 months in a subsample of smokers who responded to follow-up (n=733).Results Of baseline respondents, 1.5% (95% CI 1.4% to 1.6%, n=604) of adults and 3.9% (95% CI 3.5% to 4.3%, n=327) of smokers were long-term e-cigarette users and 0.5% (95% CI 0.4% to 0.6%, n=205) of adults and 1.3% (95% CI 1.1% to 1.5%, n=112) of smokers were long-term NRT users. Assessed prospectively, 13.4% (95% CI 10.9% to 15.9%, n=100) of smokers were long-term e-cigarette users and 1.9% (95% CI 0.9% to 2.9%, n=14) were long-term NRT users. Among all adults, long-term use by never smokers of either e-cigarettes (0.1%, n=27) or NRT (0.0%, n=7) was rare. Among past-year smokers, long-term e-cigarette and NRT use was higher among older smokers compared with those who were 16–34 years old (OR range=1.55–5.21). Long-term e-cigarette use only was lower in smokers who were less educated (OR=0.63, 95% CI 0.49 to 0.81), from social grades C2DE (OR=0.66, 95% CI 0.52 to 0.84) and with children in the household (OR=0.66, 95% CI 0.51 to 0.85). Long-term e-cigarette use and long-term NRT use were higher among smokers more motivated to quit (OR=2.05, 95% CI 1.63 to 2.60 and OR=2.33, 95% CI 1.57 to 3.46).Conclusions In the adult population in England, long-term use of e-cigarettes and long-term use of NRT are almost exclusively by current or ex-smokers. Only a minority of past-year smokers retrospectively report long-term e-cigarette or NRT use, but this figure may be an underestimate, especially for e-cigarette use, which is more than threefold higher when assessed prospectively.
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spelling doaj-art-a8ecf285aea54624b82dfdc5cbbef1a62024-12-13T21:00:08ZengBMJ Publishing GroupBMJ Open2044-60552019-10-0191010.1136/bmjopen-2019-029252Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in EnglandSarah E Jackson0Lion Shahab1Emma Beard2Emily Hill3SPECTRUM Consortium, Edinburgh, UKDepartment of Behavioural Science and Health, University College London, London, United KingdomSPECTRUM Research Consortium, Edinburgh, UK1 Department of Behavioural Science and Health, University College London, London, United KingdomObjectives To examine the prevalence of, and sociodemographic and smoking-related characteristics associated with, long-term e-cigarette use compared with long-term nicotine replacement therapy (NRT) use.Design Cross-sectional and prospective survey, the Smoking Toolkit Study, with baseline data collected between September 2014 and September 2016 and follow-ups at 6 and 12 months.Setting England.Participants Population representative sample of 40 933 adults aged 16+ years.Main outcome measures Prevalence of long-term (≥12 months) use of e-cigarettes and NRT by retrospective self-report among baseline respondents (all adults, n=40 933; smokers, n=8406) and current use at baseline, 6 months and 12 months in a subsample of smokers who responded to follow-up (n=733).Results Of baseline respondents, 1.5% (95% CI 1.4% to 1.6%, n=604) of adults and 3.9% (95% CI 3.5% to 4.3%, n=327) of smokers were long-term e-cigarette users and 0.5% (95% CI 0.4% to 0.6%, n=205) of adults and 1.3% (95% CI 1.1% to 1.5%, n=112) of smokers were long-term NRT users. Assessed prospectively, 13.4% (95% CI 10.9% to 15.9%, n=100) of smokers were long-term e-cigarette users and 1.9% (95% CI 0.9% to 2.9%, n=14) were long-term NRT users. Among all adults, long-term use by never smokers of either e-cigarettes (0.1%, n=27) or NRT (0.0%, n=7) was rare. Among past-year smokers, long-term e-cigarette and NRT use was higher among older smokers compared with those who were 16–34 years old (OR range=1.55–5.21). Long-term e-cigarette use only was lower in smokers who were less educated (OR=0.63, 95% CI 0.49 to 0.81), from social grades C2DE (OR=0.66, 95% CI 0.52 to 0.84) and with children in the household (OR=0.66, 95% CI 0.51 to 0.85). Long-term e-cigarette use and long-term NRT use were higher among smokers more motivated to quit (OR=2.05, 95% CI 1.63 to 2.60 and OR=2.33, 95% CI 1.57 to 3.46).Conclusions In the adult population in England, long-term use of e-cigarettes and long-term use of NRT are almost exclusively by current or ex-smokers. Only a minority of past-year smokers retrospectively report long-term e-cigarette or NRT use, but this figure may be an underestimate, especially for e-cigarette use, which is more than threefold higher when assessed prospectively.https://bmjopen.bmj.com/content/9/10/e029252.full
spellingShingle Sarah E Jackson
Lion Shahab
Emma Beard
Emily Hill
Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England
BMJ Open
title Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England
title_full Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England
title_fullStr Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England
title_full_unstemmed Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England
title_short Prevalence and correlates of long-term e-cigarette and nicotine replacement therapy use: a prospective study in England
title_sort prevalence and correlates of long term e cigarette and nicotine replacement therapy use a prospective study in england
url https://bmjopen.bmj.com/content/9/10/e029252.full
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