Study: Health Improves Quickly Whey You Quit Smoking
May 10th, 2008 | by admin |Submitted by Dan Wilson on May 9, 2008 - 4:52pm. Health | Heart and Lung | Lung Cancer
(Best Syndication News) Damage from smoking can be reversed, according to researchers at the Harvard School of Public Health. After analyzing the data from nearly 105,000 women over 24 years, taken from the Nurses’ Health Study, Stacy Kenfeld and her colleagues found that indeed the risk of dying from heart disease and tobacco-related cancers was reduced.
The Harvard study, which is published in this issue of the Journal of the American Medical Association, highlights the importance of smoking cessation. Rather than look at one specific cause of death, this study evaluated the mortality risk from all smoking-related mortality threats, including cancer and heart disease.
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The research involved 104,519 women from the Nurses Health Study with follow-ups from 1980 to 2004. 12,483 deaths occurred in this cohort, 4,485 (35.9%) among never smokers, 3,602 (28.9%) among current smokers, and 4,396 (35.2%) among past smokers.
The researchers report that significant trends were observed for earlier age at initiation of smoking for total mortality (P = .003), respiratory disease mortality (P = .001), and all smoking-related cancer mortality (P = .001). The excess risk for all-cause mortality decreases to the level of a never smoker 20 years after quitting, with different time frames for risk reduction observed across outcomes. Approximately 64% of deaths among current smokers and 28% of deaths among former smokers were attributable to cigarette smoking
They concluded that the excess risk of vascular mortality due to smoking in women may be eliminated rapidly upon cessation and within 20 years for lung diseases. People who postponed the age of smoking initiation reduces the risk of respiratory disease, lung cancer, and other smoking-related cancer deaths but cessation had little effect on other cause-specific mortality.
Kenfield, the lead author of this new report, said “For coronary heart disease for example, your risk declines to a non-smokers’ risk within 20 years. For all causes it declines at 20 years. For lung cancer it is after 30 years.”
By Jeffrey Workman
Best Syndication News Writer
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