Search published articles


Showing 2 results for Smoking Cessation

A Akbarzadeh Bagheban, A Beaji, Y Mehrabi, H Saadat,
Volume 5, Issue 3 (12-2009)
Abstract

Background and objective: Numerous studies have reported beneficial effects of smoking cessation in terms of decreased cardiovascular mortality in patients with coronary heart disease. This paper aimed to determine a valid estimate for the relative risk of mortality in subjects who quit smoking compared to those continued smoking.
Methods: All relevant prospective cohort studies of chronic heart disease published during 1975 to 2008 were considered. Studies with at least two years follow-up were eligible for analysis. The qualities of studies were assessed independently by two reviewers. In addition, to obtain a precise estimate, we used the sample size and the follow-up duration of each study as the covariates in the Bayesian meta-analysis model. The Winbugs and Boa softwares were utilized for fitting the Bayesian meta-analysis model.
Results: The estimate of relative risk of mortality for those who quit smoking compared to those continued smoking was 0.64 (95%CI: 0.57-0.70). We also did not find any significant relationship between the estimate of risk reduction and the described covariates.
Conclusions: Using this Bayesian meta-analysis, a 36% reduction in relative risk of mortality was found for those who quit smoking compared to those continued smoking, after eliminating the effects of study sample size and follow-up duration.
Ali-Asghar Honarmand, Seyed Aria Nejadghaderi, Aliakbar Haghdoost,
Volume 20, Issue 4 (3-2025)
Abstract

Background and Objectives: Electronic cigarettes are devices that heat liquids containing nicotine and chemicals to produce aerosols that can be inhaled. Although these products have been marketed as a less harmful alternative to traditional cigarettes, there is evidence indicating that their use also carries specific risks. Advertising and the influence of social media, particularly among young individuals, have led to increased consumption of these cigarettes and serious concerns. This study aimed to examine the benefits and drawbacks of electronic cigarettes.
Methods: In this narrative review, PubMed and Google Scholar databases were searched in a non-systematic manner using relevant keywords to identify studies related to the health effects, history, evolution, and cost-effectiveness of electronic cigarettes.
Results: Electronic cigarettes entered the market for the first time in 2003 and quickly gained popularity among consumers. These cigarettes were marketed as a healthier alternative to traditional cigarettes; however, they contain various chemicals, some of which decompose when heated, producing toxic compounds. Electronic cigarettes can have multiple impacts on health, including cardiovascular issues, respiratory problems, and the potential risk of cancer.
Conclusion: Electronic cigarettes may assist in smoking cessation in some cases, but significant drawbacks accompany these benefits. Given the potential risks, there is a need for further research to comprehensively assess their effects on health for a more informed understanding of the advantages and disadvantages of these products.


Page 1 from 1     

© 2026 , Tehran University of Medical Sciences, CC BY-NC 4.0

Designed & Developed by : Yektaweb