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Originally published by Capital Businessbusiness
October 21, 2025
12h ago
Up to 1 in 5 lung cancer patients non-smokers: study
MELBOURNE, Oct. 21 (Xinhua) -- Up to one in five people diagnosed with lung cancer globally aren't smokers, a study involving Australian researchers Kenya breaking news | Kenya news today |..
✨ Key Highlights
A study involving Australian researchers has revealed that a significant portion of lung cancer diagnoses, up to 1 in 5 globally, are in individuals who have never smoked. This challenges the common perception that lung cancer is exclusively a smoker's disease.
- 15 to 20 percent of all lung cancer cases worldwide are in non-smokers (fewer than 100 cigarettes in a lifetime).
- The study was published in JAMA, the Journal of the American Medical Association, by Australian and British researchers.
- Non-smokers with lung cancer often have higher rates of cancer-related gene mutations and risk factors include passive smoking, radioactive material, air pollution, asbestos, and a family history of lung cancer.
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