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.

UK Vape Brands Face White-Packaging and Flavour-Name Curbs in Youth-Appeal Crackdown
UK Vape Brands Face White-Packaging and Flavour-Name Curbs in Youth-Appeal Crackdown
The UK government and devolved administrations have launched a 12-week consultation on proposals to make vapes less appealing to children, including plain white packaging, limits on device colours, restrictions on flavour names and changes to how products are displayed in shops.
Jul.10
Michael Olise’s World Cup Locker-Room Photo Puts Nicotine Pouches in the Sports Business Spotlight
Michael Olise’s World Cup Locker-Room Photo Puts Nicotine Pouches in the Sports Business Spotlight
Several European sports outlets have reported on a suspected nicotine pouch seen in French footballer Michael Olise’s locker photo, bringing football’s long-running “snus” culture back into public view and highlighting brand visibility, product classification and public-health debate around nicotine pouches in sports settings.
News
Jun.25 by 2Firsts Perspectives
French Vape Distributor Kumulus Vape Yields About 3% as Earnings Growth Stalls
French Vape Distributor Kumulus Vape Yields About 3% as Earnings Growth Stalls
Listed French vape distributor Kumulus Vape will trade ex-dividend on June 26, 2026, and pay an annual dividend of €0.10 per share on June 30, with Simply Wall St saying the payout is covered by profit and free cash flow, while weak earnings growth remains a concern.
Industry InsightMarketNews
Jun.24
Product | PMI Introduces VEEV inPrime, Bringing an Induction Vaporization Platform to the Next Generation of the VEEV Portfolio
Product | PMI Introduces VEEV inPrime, Bringing an Induction Vaporization Platform to the Next Generation of the VEEV Portfolio
Philip Morris International (PMI) has introduced VEEV inPrime, the next-generation closed-system vape platform featuring the new AdvanceVape Induction System™. Alongside the new induction platform, PMI has redesigned the pods, e-liquid formulations and user interaction experience. According to PMI and official IQOS websites, VEEV inPrime began a phased European rollout between May and June 2026, with products now available in Greece, Estonia, the United Kingdom and Italy.
Jul.14
France Bans Zyn and Other Nicotine Pouches, Violators Face Jail and Fines
France Bans Zyn and Other Nicotine Pouches, Violators Face Jail and Fines
France has officially banned nicotine pouches and other oral nicotine products, including Zyn. The new regulation classifies such products as “toxic substances” and imposes criminal penalties on their use, possession, purchase, and sale. Violators may face up to five years in prison and fines of up to €400,000 (approximately $436,600).
Regulations
May.25
Reemtsma says German illegal e-cigarette seizures reached 70% of 2025 total, pouches 179%
Reemtsma says German illegal e-cigarette seizures reached 70% of 2025 total, pouches 179%
Reemtsma said its first-half 2026 black-market tracker for tobacco and nicotine products showed a continued rise in officially reported seizures in Germany, with illegal e-cigarette seizures reaching 70% of the full-year 2025 level and snus and nicotine pouch seizures reaching 179% of last year’s total.
Jul.08