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.

Product | Geek Bar BURJ 80K Extends High-Puff Competition Into Hookah-Style DTL Use
Product | Geek Bar BURJ 80K Extends High-Puff Competition Into Hookah-Style DTL Use
2Firsts has noted that Geek Bar has added BURJ to its official product portfolio under the E-HOOKAH category. Public information shows that BURJ 80K is a hookah-style disposable vape featuring a 25ml e-liquid capacity, a 1500mAh battery, 0.4Ω dual coils and three operating modes: ECO, Regular and Pulse. According to publicly available product information, the device is rated for up to 80,000 puffs in ECO mode and uses a nicotine strength of 0.5% (5mg/ml).
Market
May.29
How AI Is Rewriting the Talent Playbook for the Nicotine Industry: JTI’s Case
How AI Is Rewriting the Talent Playbook for the Nicotine Industry: JTI’s Case
AI is moving from a back-office tool to a core organizational capability in the nicotine industry. Based on JTI’s responses, this 2Firsts feature examines how AI is reshaping talent strategy, internal mobility, decision-making and human accountability as global tobacco companies compete in the shift toward new nicotine categories.
Jun.17
Altria Reports Q1 2026 Net Revenues of $5.43 Billion and 7.3% Growth in Adjusted Diluted EPS
Altria Reports Q1 2026 Net Revenues of $5.43 Billion and 7.3% Growth in Adjusted Diluted EPS
Altria Group reported its first-quarter 2026 results on April 30. Net revenues were $5.43 billion, up 3.2% year on year, while revenues net of excise taxes were $4.76 billion, up 5.3%. Reported diluted EPS was $1.30, up more than 100%, and adjusted diluted EPS was $1.32, up 7.3%.
May.06 by 2FIRSTS.ai
Jinjia Shares Discloses 2025 Annual and Q1 2026 Results With Revenue Growth, Profit Pressure and Expanding New Tobacco Business
Jinjia Shares Discloses 2025 Annual and Q1 2026 Results With Revenue Growth, Profit Pressure and Expanding New Tobacco Business
Jinjia Shares’ 2025 annual report summary and first-quarter 2026 report show that the company recorded 2025 revenue of RMB 2.988 billion, up 4.57% year on year, while net profit attributable to shareholders turned to a loss of RMB 346 million. In the first quarter of 2026, revenue rose 58.13% year on year to RMB 1.005 billion, but attributable net profit fell 45.16% to RMB 36.5349 million. The company said both revenue and cost growth were related to the expansion of its new tobacco business.
Apr.28 by 2FIRSTS.ai
China Tobacco International HK Warns First-Half Revenue May Fall 25%-30%, Tobacco Leaf and Duty-Free Exposure Highlight Reliance on Traditional Tobacco
China Tobacco International HK Warns First-Half Revenue May Fall 25%-30%, Tobacco Leaf and Duty-Free Exposure Highlight Reliance on Traditional Tobacco
CTIHK expects first-half 2026 revenue to fall 25%-30%, mainly due to lower tobacco leaf imports and delayed cigarette shipments to China’s domestic duty-free market. Its 2025 revenue mix—nearly 90% from tobacco leaf-related businesses and less than 1% from new tobacco products—shows continued exposure to traditional supply chains and trade variables.
Jun.18
2Firsts Exclusive Analysis | RLX Q1 Revenue Rises 96.2%, International Business Points to a More Integrated Global Strategy
2Firsts Exclusive Analysis | RLX Q1 Revenue Rises 96.2%, International Business Points to a More Integrated Global Strategy
RLX Technology’s Q1 net revenues rose 96.2% year over year, with international business accounting for 72.3% of total revenue. Beyond the headline growth, the results point to deeper globalization: European operations, Nexus supply-chain integration and a broader product portfolio are becoming key signals to watch.
Special Report
May.20