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Elderly rodents typically die of cancer or kidney disease, but not of cardiovascular disease. In humans, the relative incidence of cancer increases exponentially with age for most cancers, but levels off or may even decline by age 60–75 [ 3 ] (although colon / rectal cancer continues to increase).
In 2007,the second highest cause of death was cardiovascular diseases, resulting in 21.5% of deaths. In 2011, prostate cancer was the most common form of cancer among males (about 28% of all new cases) and breast cancer the most common in females (also about 28% of all new cases). [citation needed]
In the United States, 20% of the population will be older than 65 years of age by the year 2030. Those 85 years and older will be the most rapidly growing group. [1] This is compounded by the fact that the majority of cancer patients will be in this age group. Age in itself is one of the most important risk factors for developing cancer.
They found smaller, but still substantial, increases in other cancers in the younger generation compared to the older one: an increase of 12% for ovarian cancer and an increase of 169% for uterine ...
[4] [5] It most commonly occurs in older adults. [2] Males are affected more often than females. [2] The five-year survival rate is about 35% in people under 60 years old and 10% in people over 60 years old. [3] Older people whose health is too poor for intensive chemotherapy have a typical survival of five to ten months. [3]
Paraneoplastic syndromes are typical among middle-aged to older people, and they most commonly occur with cancers of the lung, breast, ovaries or lymphatic system (a lymphoma). [4] Sometimes, the symptoms of paraneoplastic syndromes show before the diagnosis of a malignancy , which has been hypothesized to relate to the disease pathogenesis.
Ionizing radiation may be used to treat other cancers, but this may, in some cases, induce a second form of cancer. [74] Radiation can cause cancer in most parts of the body, in all animals, and at any age, although radiation-induced solid tumors usually take 10–15 years, and can take up to 40 years, to become clinically manifest, and ...
Colon cancer provides one example of the mechanisms by which diet, the top factor listed in the table, is an external factor in cancer. The Western diet of African Americans in the United States is associated with a yearly colon cancer rate of 65 per 100,000 individuals, while the high fiber/low fat diet of rural Native Africans in South Africa is associated with a yearly colon cancer rate of ...
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