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Addiction. 2015 Jul;110(7):1160-8. doi: 10.1111/add.12917. Epub 2015 Apr 23.

Is the use of electronic cigarettes while smoking associated with smoking cessation attempts, cessation and reduced cigarette consumption? A survey with a 1-year follow-up.

Author information

1
Department of Addictions, UK Centre for Tobacco and Alcohol Studies (UKCTAS), Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
2
Health Behaviour Research Centre, University College London, London, UK.

Abstract

AIMS:

To use a unique longitudinal data set to assess the association between e-cigarette use while smoking with smoking cessation attempts, cessation and substantial reduction, taking into account frequency of use and key potential confounders.

DESIGN:

Web-based survey, baseline November/December 2012, 1-year follow-up in December 2013.

SETTING:

Great Britain.

PARTICIPANTS:

National general population sample of 4064 adult smokers, with 1759 (43%) followed-up.

MEASUREMENTS:

Main outcome measures were cessation attempt, cessation and substantial reduction (≥50% from baseline to follow-up) of cigarettes per day (CPD). In logistic regression models, cessation attempt in the last year (analysis n = 1473) and smoking status (n = 1656) at follow-up were regressed on to baseline e-cigarette use (none, non-daily, daily) while adjusting for baseline socio-demographics, dependence and nicotine replacement (NRT) use. Substantial reduction (n = 1042) was regressed on to follow-up e-cigarette use while adjusting for baseline socio-demographics and dependence and follow-up NRT use.

FINDINGS:

Compared with non-use, daily e-cigarette use at baseline was associated with increased cessation attempts [odds ratio (OR) = 2.11, 95% confidence interval (CI) = 1.24-3.58, P = 0.006], but not with cessation at follow-up (OR = 0.62, 95% CI = 0.28-1.37, P = 0.24). Non-daily use was not associated with cessation attempts or cessation. Daily e-cigarette use at follow-up was associated with increased odds of substantial reduction (OR = 2.49, 95% CI = 1.14-5.45, P = 0.02), non-daily use was not.

CONCLUSIONS:

Daily use of e-cigarettes while smoking appears to be associated with subsequent increases in rates of attempting to stop smoking and reducing smoking, but not with smoking cessation. Non-daily use of e-cigarettes while smoking does not appear to be associated with cessation attempts, cessation or reduced smoking.

KEYWORDS:

Electronic cigarettes; electronic nicotine delivery systems; harm reduction; quit attempts; smoking cessation; tobacco

PMID:
25900312
PMCID:
PMC4862028
DOI:
10.1111/add.12917
[Indexed for MEDLINE]
Free PMC Article

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