Studies about e-cigarettes

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studies-e-cigarette

What do studies about e-cigarettes say?


We don’t have enough data and complete studies to evaluate the exact impact of e-cigarettes on our health. In the short as well as the long run. But many studies about e-cigarettes have been conducted. They give us some information that helps determine the potential risks of vaping.

* Are e-cigarettes safer than regular cigarettes?

– A report (May 2014) commissioned by Public Health England states that e-cigarettes offer vast potential health benefits but requires appropriate regulation, careful monitoring, and risk management.

The option of switching to electronic cigarettes as an alternative and much safer source of nicotine, as a personal lifestyle choice rather than medical service, has enormous potential to reach smokers currently refractory to existing approaches.

– A systematic review (April 2014) by  Dr. Konstantinos E. Farsalinos and Riccardo Polosa states that currently available evidence indicates electronic cigarettes are by far a less harmful alternative to smoking. There is no tobacco and no combustion involved in ecig use; therefore, regular vapers may avoid several harmful toxic chemicals that are typically present in the smoke of tobacco cigarettes. Indeed, some toxic chemicals are released in the ecig vapor as well, but their levels are substantially lower compared with tobacco smoke, and in some cases are comparable with the amounts found in pharmaceutical nicotine products. Surveys, clinical, chemistry and toxicology data have often been mispresented or misinterpreted by health authorities and tobacco regulators, in such a way that the potential for harmful consequences of ecig use has been largely exaggerated.

Significant health benefits are expected in smokers who make the switch from tobacco to ecigs.

* Is there more nicotine in e-cigarettes than regular cigarettes?

– A study (September 2014) found that 15 puffs from a personal vaporizer can provide far less or far more nicotine than a single tobacco cigarette. It depends on puff conditions and product features. Ecig emissions can be predicted using physical principles, with knowledge of puff topography and a few ECIG device design parameters.

* Is there is risk of passive vaping?

– European reesearchers studied passive vaping (September 2012). The quality and quantity of  chemicals released to the environment are by far less harmful for the human health compared to regular tobacco cigarettes. Evaporation instead of burning, absence of several harmful chemicals from the liquids and absence of sidestream smoking from the use of the e-CIG are probable reasons for the difference in results. In fact, it is “more unhealthy to breath air in big cities compared to staying in the same room with someone who is vaping.”

* Do e-cigarettes really help quit smoking?

– A study (October 2014) by researchers at the Center for Survey Research, University of Massachusetts Boston shows that intensive users of e-cigarettes are 6 times as likely as non-users/triers to report they quit smoking. Daily use of electronic cigarettes for at least one month is strongly associated with quitting smoking.

– A cross-sectional population study (August 2014) of the effectiveness of e-cigarettes as a quit smoking aid has been conducted by a research team  from the UK Centre for Tobacco and Alcohol Studies. They have found that ecig users are more likely to report abstinence than either those who used other nicotine replacement therapies or no aid.

– The University College London carried out a survey (May 2014) and has found that smokers are approximately 60% more likely to report succeeding quitting smoking if they use e-cigarettes than if they use willpower alone or nicotine replacement therapies such as patches or gum.

* Are e-cigarettes a getaway to smoking cigarettes?

A study (August 2014) discussed in Australian Medicine says electronic cigarette use is associated with smoking reduction and use of electronic cigarettes by non-smokers is rare not only rare, no migration from vaping to smoking has been documented.

* Are e-cigarettes a getaway to children smoking?

– A report (May 2014) commissioned by Public Health England didn’t find any evidence to suggest that non smoking children who tried e-cigarettes were more likely to then try tobacco.

The surveys they identified were all conducted between 2010 and 2013 and use a variety of definitions of access, involved different age groups and were conducted in a range of settings, so comparisons are difficult to make. What is clear is that, with the exception of one Polish survey, ever use was reported by fewer than one in ten children in existing studies, and in the only available national study in the UK study, it was 7%.

– Another study (October 2013) is yet to be published, but according to research presented at the annual meeting of the American Association for Cancer Research, the use of ecigarettes by teens does not lead on to smoking tobacco in the vast majority of cases.

* Are there high levels of carcinogens and toxicants in vapour from electronic cigarettes?

– Levels of selected carcinogens and toxicants in vapour from electronic cigarettes have been found to be 9 to 450 times less than tobacco cigarettes (March 2013). Substituting tobacco cigarettes with e-cigarettes may substantially reduce exposure to selected tobacco-specific toxicants.

* What’s the impact of the battery output voltage on carbonyl compounds in ecig vapors?

– Roswell Park Cancer Institute conducted a study (May 2014) that measured twelve carbonyl compounds in ecig vapors where battery output voltage was gradually increased from 3.2 to 4.8 V. It found vapour contains some toxic and carcinogenic carbonyl compounds; but these vary between eliquids and are at much lower levels than cigarette smoke when lower voltages are used. High voltages significantly increase toxic compounds.

Sources :

http://www.plosone.org/article/info:doi/10.1371/journal.pone.0103462
http://ntr.oxfordjournals.org/content/early/2014/09/03/ntr.ntu174.full.pdf+html
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0103462
http://ntr.oxfordjournals.org/content/early/2014/09/03/ntr.ntu174.full.pdf+html
http://clearstream.flavourart.it/site/wp-content/uploads/2012/09/CSA_ItaEng.pdf
http://onlinelibrary.wiley.com/enhanced/doi/10.1111/add.12623
http://www.addictionjournal.org/press-releases/e-cigarette-use-for-quitting-smoking-is-associated-with-improved-success-rates-
http://www.informit.com.au/pages/ecigaretteuse.html
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/311491/Ecigarette_uptake_and_marketing.pdf
http://tobaccoanalysis.blogspot.com.au/2013/10/first-study-to-examine-e-cigarette.html
http://tobaccocontrol.bmj.com/content/early/2013/03/05/tobaccocontrol-2012-050859.short
http://ntr.oxfordjournals.org/content/early/2014/05/14/ntr.ntu078.full
http://www.ncbi.nlm.nih.gov/pubmed/25301815


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