Lung Cancer Causes
It is estimated that approximately 80% of lung cancer deaths in men and 75% of lung cancer deaths in women are related to tobacco smoking. The more cigarettes that a person smokes each day and the younger he or she began smoking, the greater the lung cancer risk. Among smokers, lung cancer rates are lower in people who smoke filter cigarettes and low-tar/low-nicotine brands; however, these rates are still significantly higher than in nonsmokers.
People who quit smoking can reduce their risk for developing lung cancer. After 10 to 15 years, this risk approaches the risk of nonsmokers. People who smoke pipes or cigars have a higher risk for lung cancer than nonsmokers, but a lower risk than cigarette smokers.
Additional risk factors, such as exposure to secondhand smoke, asbestos, radon, occupational chemicals and age, race, sex, and heredity, also may play a role in lung cancer development. Some studies suggest that the risk for lung cancer may be reduced by the dietary intake of micronutrients, such as carotenoids, vitamin C, vitamin E, and selenium.
Physician-developed and -monitored.
Original Date of Publication: 15 Aug 1999
Reviewed by: Stanley J. Swierzewski, III, M.D.
Last Reviewed: 04 Dec 2007
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