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Lung cancer is the most diagnosed and deadliest cancer worldwide, with 2.2 million cases in 2020 resulting in 1.8 million deaths. [3] Lung cancer is rare in those younger than 40; the average age at diagnosis is 70 years, and the average age at death 72. [2] Incidence and outcomes vary widely across the world, depending on patterns of tobacco use.
The incidence of lung cancer is highly correlated with smoking. Tobacco smoking is associated with many forms of cancer, [20] and causes 80% of lung cancer. [21] Decades of research has demonstrated the link between tobacco use and cancer in the lung, larynx, head, neck, stomach, bladder, kidney, esophagus and pancreas. [22]
For Lung Cancer Awareness Month, which is recognized in November, Yahoo Canada spoke to an expert about the condition. Symptoms, causes of lung cancer: Expert shares what to know Skip to main content
This study was a retrospective, case-control study that compared smoking habits of 684 individuals with bronchogenic carcinoma to those without the condition. [12] The survey included questions about smoking: starting age, 20 year tobacco consumption, brands used; as well as inquires about exposure to hazardous agents in the workplace, alcohol use, and causes of death for family members.
Other causes include radon, exposure to secondhand smoke, exposure to substances such as asbestos, chromium, nickel, beryllium, soot, or tar, family history of lung cancer, and air pollution. [5] [17] Genetics can also play a role as a family history of lung cancer can contribute to an increased risk of developing the disease. [1]
John Gofman claimed it increased the rate of lung cancer worldwide. He said "Although it is impossible to estimate [dubious – discuss] the number of lung cancers induced by the accident, there is no question that the dispersal of so much plutonium-238 would add to the number of lung cancers diagnosed over many subsequent decades."
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