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.

JT Launches Ploom CUBE Heated Tobacco Device Featuring SMART HEATFLOW
JT Launches Ploom CUBE Heated Tobacco Device Featuring SMART HEATFLOW
Japan Tobacco has launched the Ploom CUBE heated-tobacco device in Japan, with a starter kit retail price of JPY 1,980 (approximately US$13). The cube-shaped device employs the same SMART HEATFLOW heating technology as Ploom AURA and delivers roughly 19–27 sticks per charge.
Oct.09 by 2FIRSTS.ai
France’s Finance Committee Rejects 2026 Vaping Tax, Backs Online Sales Ban
France’s Finance Committee Rejects 2026 Vaping Tax, Backs Online Sales Ban
France’s National Assembly Finance Committee voted to oppose the government’s plan in Article 23 of the 2026 budget bill to tax vaping products at €0.30/10mL for low-nicotine liquids and €0.50/10mL for others (with typical bottles priced €5–€7). Lawmakers arguing against the tax said vaping is less harmful than combustible cigarettes and can aid cessation; others warned of a gateway effect for youth and sustained nicotine dependence.
Oct.23 by 2FIRSTS.ai
Philippines police seize $200k worth of illegal e-cigarette products, arrest 2 suspects
Philippines police seize $200k worth of illegal e-cigarette products, arrest 2 suspects
Philippine police in Cavite seize $200,000 worth of illegal e-cigarette products, arresting two suspects. Crackdown on smuggling intensifies.
Oct.13 by 2FIRSTS.ai
JT Q3 2025: Revenue +18%, Profit +30%; RRP Volume +40%; Guidance Up
JT Q3 2025: Revenue +18%, Profit +30%; RRP Volume +40%; Guidance Up
Japan Tobacco (JT) delivered a strong Q3 2025. Revenue rose 18.3% year over year to ¥947.2 billion, with adjusted operating profit up 27.8% to ¥279.0 billion (+20.8% at constant currency) and net profit up 29.7% to ¥176.7 billion. Growth was led by reduced-risk products (RRP): total RRP volume climbed 40%, with heated tobacco (HTS) up 53%. In Japan, the launches of Ploom AURA and EVO pods pushed HTS category share to 15.5%, while the Ploom user base has nearly doubled versus two years ago.
Oct.30 by 2FIRSTS.ai
InterTabac 2025 Insights|PMI Showcases Full Portfolio: IQOS, VEEV, and ZYN in Dedicated Zones
InterTabac 2025 Insights|PMI Showcases Full Portfolio: IQOS, VEEV, and ZYN in Dedicated Zones
At InterTabac 2025 in Dortmund, 2Firsts observed that Philip Morris International (PMI) exhibited with a full product lineup and organized three key brands—IQOS (heated tobacco), VEEV (e-vapor), and ZYN (nicotine pouches)—into separate display areas.
Sep.19 by 2FIRSTS.ai
B.C. Plans World’s First E-Cigarette Public Health Accountability Law Aimed at “Deceptive Marketing”
B.C. Plans World’s First E-Cigarette Public Health Accountability Law Aimed at “Deceptive Marketing”
British Columbia, Canada is advancing what it calls the world’s first e-cigarette Public Health Accountability law, granting the government authority to sue companies for “deceptive marketing.” The move puts public-health risks at the center of vaping industry compliance.
Oct.10 by 2FIRSTS.ai