Kicking the butt reduces mortality even in older patients
Washington, June 12 (ANI): Analysis of available medical literature suggests that smoking is linked to increased mortality in older patients and smoking cessation is associated with reduced mortality at an older age.
Smoking is a known risk factor for many chronic diseases, including cardiovascular disease and cancer, however, the epidemiological evidence mostly relies on studies conducted among middle-aged adults, according to the study background.
"We provide a thorough review and meta-analysis of studies assessing the impact of smoking on all-cause mortality in people 60 years and older, paying particular attention to the strength of the association by age, the impact of smoking cessation at older age, and factors that might specifically affect results of epidemiological studies on the impact of smoking in an older population," Carolin Gellert and her colleagues from the German Cancer Research Center (DKFZ), Heidelberg, Germany, note in the study.
The authors identified 17 studies from seven countries (the U.S., China, Australia, Japan, England, Spain and France) that were published between 1987 and 2011.
The follow-up time of the studies ranged from 3 to 50 years and the size of the study populations ranged from 863 to 877,243 participants.
In summarizing the results from the 17 studies, the authors note an 83 percent increased relative mortality for current smokers and a 34 percent increased relative mortality for former smokers compared with never smokers.
"In this review and meta-analysis on the association of smoking and all-cause mortality at older age, current and former smokers showed an approximately 2-fold and 1.3-fold risk for mortality, respectively," the authors note.
"This review and meta-analysis demonstrates that the relative risk for death notably decreases with time since smoking cessation even at older age," they wrote.
The report was published recently in Archives of Internal Medicine, a JAMA Network publication. (ANI)
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