The Potential Hazards of E-Cigarette and Dual Use: a Cochrane Systematic Review and Secondary Analysis

Dec.01.2022
The Potential Hazards of E-Cigarette and Dual Use: a Cochrane Systematic Review and Secondary Analysis
A study on Cochrane's systematic review found that switching from smoking to e-cigarettes significantly reduces potential harm biomarkers. However, a separate study found that using both traditional and e-cigarettes has the same harmful effect on the heart as smoking alone.

Title: Biomarkers of potential harm from switching from tobacco smoking to e-cigarette use, dual use or cessation: a Cochrane systematic review and meta-analysis of secondary analysis of data from randomized controlled trials of electronic cigarettes for smoking cessation. In this study, researchers conducted a secondary analysis of data from randomized controlled trials of electronic cigarettes for smoking cessation in Greece, Italy, Poland, the United Kingdom, and the United States. The conclusion drawn was that switching from tobacco smoking to e-cigarette use significantly lowered potential harmful biomarkers.


At the same time, according to a recent study published in the American Heart Association journal "Circulation," using both traditional cigarettes and e-cigarettes poses the same risk to the heart as smoking alone.


A study titled "Association Between Patterns of Cigarette and E-Cigarette Use and Inflammatory and Oxidative Stress Biomarker Levels in U.S. Adults: A Population Assessment of Tobacco and Health Study" analyzed more than 7,100 U.S. adults aged 18 and over to explore the connection between smoking, vaping, and heart health.


Researchers used data from the Population Assessment of Tobacco and Health (PATH) study to search for biomarkers of inflammation and oxidative stress, as these biomarkers are known to indicate predictive factors for heart disease and cardiovascular events, such as heart attacks and heart failure.


After analyzing five biomarkers of inflammation and oxidative stress, participants were divided into four groups: exclusive smokers, exclusive e-cigarette users, dual users, and non-users of e-cigarettes. Researchers listed the following findings:


Participants who only use electronic cigarettes showed similar levels of inflammation and oxidative stress as those who do not use electronic cigarettes or smoke at all. However, compared to participants who do not use cigarettes or electronic cigarettes, those who smoke exclusively or use both cigarettes and electronic cigarettes had higher levels of all evaluated biomarkers. Participants who only use electronic cigarettes had significantly lower levels of nearly all inflammation and oxidative stress biomarkers compared to those who only smoke. However, participants who use both cigarettes and electronic cigarettes had biomarker levels similar to those who exclusively smoke. 2FIRSTS will continue to report on this issue, with updates available on the "2FIRSTSAPP". Scan the QR code below to download the app.



Disclaimer

This article is provided solely for professional research, industry discussion, and informational purposes. Any references to brands, companies, products, technologies, or policies are made for factual reporting and analytical purposes only, and do not constitute endorsement, recommendation, promotion, or advertising by 2Firsts.

Nicotine-containing products, including but not limited to cigarettes, e-cigarettes, heated tobacco products, and nicotine pouches, carry significant health risks. Readers are responsible for complying with all applicable laws and regulations in their respective jurisdictions, including age restrictions and access limitations.

The information contained in this article should not be regarded as investment, legal, medical, regulatory, or commercial advice. While 2Firsts strives to ensure the accuracy and reliability of its content, it does not assume liability for any direct or indirect loss arising from errors, omissions, inaccuracies, or reliance on the information contained herein.

This article is not intended for individuals below the legal age for accessing tobacco or nicotine-related information in their jurisdiction.

 

Copyright Notice

This article is either original content produced by 2Firsts or content reproduced, translated, summarized, or adapted from third-party sources with attribution where applicable. The intellectual property rights of the original content remain with 2Firsts or the respective original rights holders.

No individual or organization may copy, reproduce, distribute, republish, modify, translate, or otherwise use this content without prior authorization. Any unauthorized use may result in legal action.

For copyright-related inquiries, corrections, or removal requests, please contact: info@2firsts.com.

 

AI-Assisted Translation and Editing Notice

Portions of this article may have been translated, edited, or reviewed with the assistance of artificial intelligence tools to improve efficiency and readability. Due to the limitations of AI-assisted translation and editing, discrepancies, omissions, or inaccuracies may exist when compared with the original source.

Where applicable, readers are advised to refer to the original source for the most complete and accurate information. If you identify any errors or believe that any content infringes upon your rights, please contact us at info@2firsts.com, and we will review and address the matter promptly.

Spain Plans to Extend Smoking Ban to Terraces and Beaches, Bringing Vapes Under New Restrictions
Spain Plans to Extend Smoking Ban to Terraces and Beaches, Bringing Vapes Under New Restrictions
Spain is advancing a new tobacco-control reform that would expand smoking restrictions to additional public spaces, including restaurant terraces and beaches, while bringing vaping and other nicotine products into the same regulatory framework. The proposed measures aim to reduce secondhand smoke exposure, protect young people and expand smoke-free environments. The proposal remains under legislative development, and final implementation details have not yet been confirmed.
Jul.23
Iowa Enforces Vape Registry Law as Retailers Warn Product Limits Could Increase Store Pressure
Iowa Enforces Vape Registry Law as Retailers Warn Product Limits Could Increase Store Pressure
Iowa has begun enforcing its vape registry law, requiring vape products to be registered before they can be legally sold in the state. The move follows a decision by the U.S. Court of Appeals for the Eighth Circuit to lift an injunction that had blocked enforcement. Retailers have warned that tighter product availability rules could increase pressure on vape shops. One Iowa retailer said that if only a limited number of products remain available, many stores could face significant business challenges.
Aug.06
Ireland Vape Bill Passes Dáil, Setting Limits on Flavours, Packaging and Retail Display
Ireland Vape Bill Passes Dáil, Setting Limits on Flavours, Packaging and Retail Display
Ireland’s Public Health (Tobacco Products and Nicotine Inhaling Products) (Amendment) Bill 2026 has passed final stage in the Dáil and will move to the Seanad, with measures to limit vape flavours to tobacco or unflavoured products and tighten rules on packaging colours, retail advertising, in-store displays and sales of nicotine pouches to minors.
News
Jun.26 by 2Firsts Perspectives
Yinghe-Controlled Vape Maker SKE Ordered to Post £569,039 Security as It Pursues Crystal Bar Design Infringement Case in UK
Yinghe-Controlled Vape Maker SKE Ordered to Post £569,039 Security as It Pursues Crystal Bar Design Infringement Case in UK
The UK High Court has ordered Chinese vape manufacturer Shenzhen SKE Technology to provide £569,039 ($776,000) in security for costs in its design infringement proceedings against Vapepen London and other defendants over its Crystal Bar vape product. The court did not accept the defendants’ main argument that recovering costs from a China-based company would face significant enforcement obstacles, but found that SKE had not sufficiently disclosed its own financial position. The order is procedural and does not determine the underlying infringement claims.
News
Aug.21
UK Sets Oct. 29 Start for New Vape Retail Rules Covering Age Checks, Giveaways and Discounts
UK Sets Oct. 29 Start for New Vape Retail Rules Covering Age Checks, Giveaways and Discounts
The UK Department of Health and Social Care published new guidance on Aug. 11 outlining the next phase of retail rules under the Tobacco and Vapes Act 2026, which will take effect on Oct. 29, 2026. The measures extend the minimum age of sale of 18 to all vaping and consumer nicotine products and restrict proxy purchasing, promotional giveaways and substantial discounts. Relevant offences in England, Wales and Scotland may carry a £200 fixed penalty notice, while persistent offenders can face temporary sales bans.
Aug.12
Germany Plans Tobacco Tax Hike, With Cigarette Prices Nearing €12 Per Pack by 2030
Germany Plans Tobacco Tax Hike, With Cigarette Prices Nearing €12 Per Pack by 2030
Germany plans to raise tobacco taxes over the coming years, potentially pushing the average price of a 20-cigarette pack to about €11.78 by 2030. The proposal also covers fine-cut tobacco, cigars, pipe tobacco and e-cigarette liquids.
Jul.14