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BMJ Open. 2015 Nov 3;5(11):e009218. doi: 10.1136/bmjopen-2015-009218.

Perception of electronic cigarettes in the general population: does their usefulness outweigh their risks?

Author information

1
Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia, L'Hospitalet de Llobregat, Barcelona, Spain Cancer Prevention and Control Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain Biostatistics Unit, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain.
2
Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia, L'Hospitalet de Llobregat, Barcelona, Spain Cancer Prevention and Control Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain Department of Clinical Sciences, School of Medicine, Universitat de Barcelona, Barcelona, Spain.
3
Biostatistics Unit, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Barcelona, Spain.
4
Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia, L'Hospitalet de Llobregat, Barcelona, Spain Cancer Prevention and Control Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain Department of Clinical Sciences, School of Medicine, Universitat de Barcelona, Barcelona, Spain Addictions Unit, Institute of Neurosciences, Hospital Clínic de Barcelona, Barcelona, Spain.
5
Health Plan Directorate, Ministry of Health, Generalitat de Catalunya, Barcelona, Spain Department of Public Health, Universitat de Barcelona, Barcelona, Spain.

Abstract

OBJECTIVE:

To describe and compare the perceptions of the general population about the harmful effects of electronic cigarettes (e-cigarettes) on users and on those passively exposed to e-cigarettes and the perceptions about e-cigarette usefulness for reducing or eliminating tobacco smoking.

DESIGN, SETTING, AND PARTICIPANTS:

We analysed cross-sectional data from a longitudinal study of a representative sample of the general adult (≥16 years) population of Barcelona, Spain (336 men and 400 women). The fieldwork was conducted between May 2013 and February 2014. We computed the percentages, adjusted OR and their corresponding 95% CI among participants with some awareness of e-cigarettes (79.2% of the sample).

PRIMARY AND SECONDARY OUTCOME MEASURES:

We assessed the perception about harmfulness for e-cigarette users and for passively exposed non-e-cigarette users, as well as the perception of usefulness for smokers of cigarette cessation and reduction.

RESULTS:

In this sample, 40.1% thought that e-cigarettes had a harmful effect on users, and 27.1% thought that e-cigarettes had a harmful effect on passively exposed bystanders (p<0.001). Particularly, more never-smokers perceived that e-cigarettes had harmful effects on passively exposed bystanders than current smokers (34.4% vs 20.6%; OR=1.93, 95% CI 1.02 to 3.63). More people perceived e-cigarettes as being useful for reducing smoking than for quitting (50.6% vs 29.9%, p<0.001), as well as for reducing smoking than as being harmful to users (50.6% vs 40.1%, p=0.044).

DISCUSSION:

The perception that e-cigarettes are useful for reducing tobacco consumption was more prevalent than the perception that e-cigarettes are harmful to users and to those passively exposed to e-cigarettes. Advertisements and messages about the use of e-cigarettes and their harmful effects should be regulated and based on scientific evidence to avoid creating erroneous ideas about their use.

KEYWORDS:

EPIDEMIOLOGY; PREVENTIVE MEDICINE; PUBLIC HEALTH

PMID:
26534735
PMCID:
PMC4636602
DOI:
10.1136/bmjopen-2015-009218
[Indexed for MEDLINE]
Free PMC Article

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