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.

Azerbaijan’s Milli Majlis to hold public hearings on e-cigarette use in the 2026 spring session
Azerbaijan’s Milli Majlis to hold public hearings on e-cigarette use in the 2026 spring session
Azerbaijan’s Milli Majlis will hold public hearings regarding the use of e-cigarettes. The topic has been included in the 2026 spring session work plan of the Milli Majlis Committee on Agrarian Policy. During the spring session, the committee plans to convene a public hearing titled “Health is our goal: an end to e-cigarettes.”
Jan.23 by 2FIRSTS.ai
Australian Border Force Deputy Commissioner Meets China Tobacco Regulator as Illicit Tobacco Enforcement Intensifies
Australian Border Force Deputy Commissioner Meets China Tobacco Regulator as Illicit Tobacco Enforcement Intensifies
ABF Deputy Commissioner Tim Fitzgerald visited Beijing for talks with China’s STMA. The meeting follows several exchanges between Australian enforcement agencies and China’s tobacco regulator in recent years. The discussions come as Australia intensifies efforts to combat illicit tobacco and vaping products, including large seizures at the border, while the country’s strict tobacco and vape policies continue to spark debate over their impact on the growth of black markets.
Mar.09
Azerbaijan parliament passes third-reading amendments introducing e-cigarette penalties, effective April 1, 2026
Azerbaijan parliament passes third-reading amendments introducing e-cigarette penalties, effective April 1, 2026
Azerbaijan’s Milli Majlis has adopted, in its third reading, amendments to the Code of Administrative Offences introducing fines and confiscation for the use of e-cigarettes and their components, as well as import, export, production, wholesale and retail sales, and storage for sale.
Mar.04 by 2FIRSTS.ai
Scandinavian Tobacco Group releases 2025 results: tariffs and weaker demand weigh on performance, revenue about $1.4 billion
Scandinavian Tobacco Group releases 2025 results: tariffs and weaker demand weigh on performance, revenue about $1.4 billion
Scandinavian Tobacco Group (STG) reported its 2025 results: revenue was 9.036 billion Danish kroner (about $1.407 billion); EBITDA before special items was 1.791 billion Danish kroner (about $278 million); and free cash flow before acquisitions was 595 million Danish kroner (about $92.7 million). Multiple metrics declined year over year, and the company did not meet its Q3-updated guidance for revenue and free cash flow.
Mar.05 by 2FIRSTS.ai
2Firsts Flash|PMI Reports 2025 Results as Smoke-Free Products Account for 41.5% of Net Revenues
2Firsts Flash|PMI Reports 2025 Results as Smoke-Free Products Account for 41.5% of Net Revenues
Philip Morris International reported full-year 2025 results on February 6, with smoke-free products accounting for 41.5% of adjusted net revenues, up from 38.7% a year earlier. Total net revenues rose 7.3% to $40.65 billion, while shipment volumes increased 1.4%, widening the gap between revenue and volume growth. Cigarette shipments declined as smoke-free volumes rose 12.8%, driven by heated tobacco, oral nicotine and e-vapor products. Results were released alongside a 9:00 a.m. EST webcast.
Feb.06
Exclusive|Suspected China Tobacco Nicotine Oral Film Product Surfaces on Social Media
Exclusive|Suspected China Tobacco Nicotine Oral Film Product Surfaces on Social Media
China Tobacco Jiangsu IC appears to have developed a nicotine oral film product under the "Nanjing" brand, according to images circulating on Chinese social media. If confirmed, this could potentially mark China Tobacco's first oral nicotine product targeting the domestic market. The product's authenticity has not been officially verified, and no nicotine pouch products have been approved for sale in China.
Special Report
Feb.09