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.

Malaysian Tobacco Control Groups Call for Annual 5% Tobacco Tax Hike
Malaysian Tobacco Control Groups Call for Annual 5% Tobacco Tax Hike
According to The Star and The Edge Malaysia, tobacco control groups in Malaysia have urged the government to raise tobacco taxes by at least 5% annually, saying the measure could reduce smoking rates and fund public health and social programmes.
News
May.26
 China’s E-Cigarette Exports Reached About USD 903 Million in March 2026, Up 4.4% Year on Year
China’s E-Cigarette Exports Reached About USD 903 Million in March 2026, Up 4.4% Year on Year
According to the latest country-level data released by China’s General Administration of Customs, China’s e-cigarette-related exports totaled about USD 903 million in March 2026, up about 4.4% from roughly USD 865 million a year earlier. The United States, the United Kingdom and Germany remained the top three destinations, while the top 10 markets together accounted for about 72.2% of total exports.
Apr.21 by 2FIRSTS.ai
 NYT: Reynolds American Donated $5 Million Before FDA Vape Policy Shift
NYT: Reynolds American Donated $5 Million Before FDA Vape Policy Shift
According to The New York Times, Reynolds American donated $5 million to a Trump-backed super PAC shortly before the FDA introduced a new policy that could benefit major tobacco companies seeking to sell flavored vaping products.
News
May.21
Thailand’s DDC Reaffirms Nicotine Pouches Are Regulated Under the Tobacco Products Control Act
Thailand’s DDC Reaffirms Nicotine Pouches Are Regulated Under the Tobacco Products Control Act
Thailand’s Department of Disease Control has warned the public not to believe claims that nicotine pouches are harmless, saying the products contain high levels of nicotine that can enter the bloodstream through the mouth lining and affect the nervous system and brain.
Apr.30 by 2FIRSTS.ai
ITGA Americas Meeting Calls for Balanced Regulation as Tobacco Growers Warn of Pressure on Farms and Legal Supply Chains
ITGA Americas Meeting Calls for Balanced Regulation as Tobacco Growers Warn of Pressure on Farms and Legal Supply Chains
ITGA said tobacco grower organizations from five Americas countries called for stronger regional cooperation and balanced regulation, warning that restrictive policies could pressure farmers and legal supply chains. The article also provides data on major tobacco-producing countries in the Americas.
Special Report
Jun.02
Product | KT&G Expands lil AIBLE 3.0 Sales to Seoul Convenience Stores, Launches Two New AIIM Variants
Product | KT&G Expands lil AIBLE 3.0 Sales to Seoul Convenience Stores, Launches Two New AIIM Variants
According to South Korean media reports, KT&G has expanded sales of its heated tobacco device lil AIBLE 3.0 to convenience stores across Seoul starting May 13. The convenience-store version is offered in the exclusive OUD GRAY color. On the same day, KT&G also launched two new dedicated consumables for the lil AIBLE platform—AIIM REMIX and AIIM ICESPOT—at convenience stores nationwide, each priced at KRW 4,800.
Market
Jun.01