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 Vaping Products Duty to Raise £565 Million by 2030/31
UK Vaping Products Duty to Raise £565 Million by 2030/31
The UK will introduce Vaping Products Duty on all vaping liquids from October 1, 2026, with government revenue forecast to rise from £135 million in 2026/27 to £565 million by 2030/31.
Jun.18
China Tobacco Regulator Deputy Head Visits Laos as Both Sides Strengthen Cooperation on Illegal Tobacco Trade
China Tobacco Regulator Deputy Head Visits Laos as Both Sides Strengthen Cooperation on Illegal Tobacco Trade
China’s official Xinhua News Agency reported that Liu Sanjiang, deputy head and Party group member of China’s tobacco regulator, led a delegation to Laos from July 31 to Aug. 2, 2026, for discussions with Lao authorities on combating cross-border illegal tobacco trade. The two sides discussed areas including law enforcement cooperation, information sharing and efforts to address tobacco-related illegal activities such as counterfeiting and smuggling. The visit highlights cooperation between Chinese and Lao authorities on illicit tobacco control.
News
Aug.05
Seita’s Julia Neumaier Says France Should Target Vape Access, Not Plain Packaging
Seita’s Julia Neumaier Says France Should Target Vape Access, Not Plain Packaging
Julia Neumaier, general manager of Seita, Imperial Brands’ French subsidiary, said France should focus vaping regulation on access control, age verification, online sales and distribution channels, rather than applying tobacco-style plain packaging to vaping products.
Jul.15
Product | Summo 150K Introduces Refillable Design With Up to 150,000 Puffs, Exploring a New High-Capacity Vape Format
Product | Summo 150K Introduces Refillable Design With Up to 150,000 Puffs, Exploring a New High-Capacity Vape Format
Summo has introduced the Summo 150K Refillable Disposable Vape, entering the ultra-high-puff vape segment with a claimed capacity of up to 150,000 puffs. The device combines a 40ml dual e-liquid system, transparent tank design, dual mesh coils and a 900mAh rechargeable battery, using a refillable structure to differentiate itself from conventional disposable vapes. The product appeared on overseas online retail channels including Vapesourcing and VapeBarTime between late June and early July 2026.
Jul.22
Product | PMI Pilots bonds by IQOS and blends in Japan, Testing a New Heated Tobacco Platform
Product | PMI Pilots bonds by IQOS and blends in Japan, Testing a New Heated Tobacco Platform
Philip Morris International (PMI) has launched a regional pilot of bonds by IQOS and dedicated blends tobacco sticks in Japan, introducing a new heated tobacco platform separate from the IQOS ILUMA ecosystem. The system uses Round Heat Technology with an external heating architecture, differentiating it from IQOS ILUMA’s induction-based platform. The pilot began on July 6, 2026, across three Japanese prefectures: Fukuoka, Saga and Nagasaki.
Jul.30
Supreme Vape Revenue Rises 15% Despite UK Disposable Vape Ban
Supreme Vape Revenue Rises 15% Despite UK Disposable Vape Ban
UK consumer goods group Supreme said its vaping revenue rose 15% to £148.1 million in the year to March 31, 2026, despite the UK disposable vape ban taking effect during the period, while the company identified the Vaping Products Duty due in October as the next major industry milestone.
Regulations
Jul.03 by 2Firsts Perspectives