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.


This document has been generated through artificial intelligence translation and is provided solely for the purposes of industry discourse and learning. Please note that the intellectual property rights of the content belong to the original media source or author. Owing to certain limitations in the translation process, there may be discrepancies between the translated text and the original content. We recommend referring to the original source for complete accuracy. In case of any inaccuracies, we invite you to reach out to us with corrections. If you believe any content has infringed upon your rights, please contact us immediately for its removal.

Kazakhstan: Over 131,000 vapes seized in Almaty and Pavlodar case; about $1.422 million cited
Kazakhstan: Over 131,000 vapes seized in Almaty and Pavlodar case; about $1.422 million cited
Kazakhstan’s financial monitoring authorities said a group is suspected of illicitly distributing vaping devices in Almaty and Pavlodar Region, using Telegram as a sales channel with courier delivery. During searches, investigators seized more than 131,000 vapes valued at 711 million tenge (about $1.422 million, using 1 tenge = $0.0020).
Mar.04 by 2FIRSTS.ai
Exclusive | TPE 2026 Cools as Caution Deepens in the U.S. Vape Market
Exclusive | TPE 2026 Cools as Caution Deepens in the U.S. Vape Market
The show had become an important check-in point for Chinese manufacturers and brand owners looking for signs of change in the U.S. market after months of softer demand. Instead, participants said the event highlighted a more restrained mood: traffic in the vape section was uneven, standout launches were limited, and conversations often failed to turn into orders.
Special Report
Apr.12
UK Vape Waste Falls 23% From 2024, but Recycling Group Says Fire Risks Remain High
UK Vape Waste Falls 23% From 2024, but Recycling Group Says Fire Risks Remain High
New research from UK recycling campaign group Material Focus says more than 6.3 million vapes and pods are still thrown away each week in the UK. The figure is down 23% from 8.2 million in 2024, which the group said suggests the June 2025 single-use vape ban has helped reduce waste, but it warned that the current level still represents a major waste of valuable materials and a significant fire risk.
Mar.27 by 2FIRSTS.ai
China’s tobacco regulator names Yao Laiying as top leader
China’s tobacco regulator names Yao Laiying as top leader
China’s tobacco regulator has undergone a top leadership change, according to an official announcement on March 20.
Mar.20
Namibia Moves to Tighten Laws on E-Cigarettes and Emerging Nicotine Products
Namibia Moves to Tighten Laws on E-Cigarettes and Emerging Nicotine Products
Namibia is moving to tighten regulation of e-cigarettes and other emerging nicotine products as part of broader tobacco control efforts. Deputy health minister Susan Ndjaleka said the government is reviewing the Tobacco Products Control Act to close regulatory gaps and address emerging tobacco products. Namibia is also working toward joining the Protocol to Eliminate Illicit Trade in Tobacco Products in order to curb the black market and protect public revenue.
Apr.17 by 2FIRSTS.ai
RLX Technology 2025 Revenue Rises 44.0% YoY to Nearly USD 566.1 million, International Business Accounts for 76.5% in Q4
RLX Technology 2025 Revenue Rises 44.0% YoY to Nearly USD 566.1 million, International Business Accounts for 76.5% in Q4
RLX Technology Inc. announced its unaudited financial results for the fourth quarter and full year of 2025. Q4 net revenue reached RMB 1.1413 billion, a 40.3% year-over-year increase, while full-year net revenue grew 44.0% to RMB 3.9589 billion.
Mar.13 by 2FIRSTS.ai