Probability of Developing Lung Cancer
1 in 16 (6.3%)
Lifetime probability in US
About 1 in 16 Americans will develop lung cancer in their lifetime, with smoking being the primary risk factor.
Lung cancer is the leading cause of cancer death in the United States for both men and women. The lifetime risk of developing lung cancer is approximately 6.3% (1 in 16) overall, but this varies dramatically based on smoking status.
Cigarette smoking is responsible for approximately 80-90% of lung cancer cases. A current smoker's risk is 15-30 times higher than a never-smoker's risk. Other risk factors include secondhand smoke exposure, radon gas, asbestos, air pollution, and family history.
Quitting smoking at any age reduces lung cancer risk. After 10 years of not smoking, a former smoker's risk drops to about half that of a continuing smoker. Low-dose CT screening is now recommended for high-risk individuals (adults 50-80 with a 20 pack-year smoking history). The 5-year survival rate for lung cancer caught at the localized stage is about 63%, compared to just 8% for distant-stage diagnosis.
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