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.

South Korea Brings Synthetic-Nicotine E-Cigarettes Under Tobacco Rules From June 24, Targeting Online Sales and Evasion
South Korea Brings Synthetic-Nicotine E-Cigarettes Under Tobacco Rules From June 24, Targeting Online Sales and Evasion
South Korea began full enforcement of tobacco-style rules for synthetic-nicotine e-cigarettes on June 24, 2026, with fines of up to 100,000 won for use in non-smoking areas and enforcement focus on online sales, raw nicotine liquids and products falsely marketed as nicotine-free.
MarketNews
Jun.25 by 2Firsts Perspectives
French Anti-Tobacco Group Questions PMI’s IQOS “Curiosity” Campaign Over Potential Youth Appeal
French Anti-Tobacco Group Questions PMI’s IQOS “Curiosity” Campaign Over Potential Youth Appeal
According to French anti-tobacco group Générations Sans Tabac, Philip Morris International’s (PMI) IQOS “Curiosity” campaign has drawn attention from public health advocates. The group argues that the campaign uses themes including curiosity, exploration and lifestyle branding that could increase interest among younger audiences. PMI has positioned IQOS as a key part of its smoke-free product strategy, while France maintains strict restrictions on tobacco and nicotine product marketing. The debate highlights ongoing tensions between heated tobacco branding strategies and public health concerns in Europe.
Jul.24
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
UK Proposes Stricter Vape Packaging Rules as Retailers Warn of £330 Million Impact
UK Proposes Stricter Vape Packaging Rules as Retailers Warn of £330 Million Impact
The UK government has launched a nationwide consultation on vape packaging, appearance and retail displays, proposing tighter rules to reduce youth appeal while industry groups warn of significant compliance costs.
Innovation
Jul.20
Product | Vapsolo Launches Sixer 180K, Introducing a 6-in-1 Architecture for Disposable Vapes
Product | Vapsolo Launches Sixer 180K, Introducing a 6-in-1 Architecture for Disposable Vapes
Vapsolo has launched the Sixer 180K, a flagship disposable vape built around a 6-in-1 architecture featuring six independent e-liquid tanks and six dedicated mesh coils. Alongside a claimed up to 180,000 puffs, the new device reflects a broader shift in disposable vape development from increasing puff counts toward modular hardware design and multi-flavor user experience.
Jul.03
South Korea Vape Strategies Diverge as BAT Reconsiders Exit and PMI Takes VEEV to About 14,000 Stores
South Korea Vape Strategies Diverge as BAT Reconsiders Exit and PMI Takes VEEV to About 14,000 Stores
BAT Rothmans says it previously considered exiting South Korea's vaping market because of competitive pressure from unregulated products, but is now reassessing conditions following changes to the country's nicotine regulatory framework. Vuse and other BAT vaping products remain available through existing distribution channels. The statement followed a South Korean media report that interpreted BAT's broader withdrawal from selected Vapour markets as a full exit from South Korea. Meanwhile, Philip Morris International launched VEEV inPRIME in the country in June and began expanding distribution to around 14,000 convenience stores and other retail channels in July. The contrasting moves highlight differing investment strategies as South Korea's regulated vaping market evolves.
Aug.14