Cancer Epidemiology

Cancer is a major public health problem that affects citizens across all societies in the world. The incidence of cancer is increasing at a rapid pace due to environmental factors, lifestyle choices and longer life expectancies. Worldwide, the number of patients affected by cancer is predicted to increase by 50 percent by the year 2030; and during the same period, cancer-related mortality is projected to increase by 60 percent. Cancer currently accounts for nearly one out of every four deaths in the United States. Cancer usually develops in older people; 87 percent of all cancers in the U.S. are diagnosed in people 50 years of age or older. People 65 years or older have a cancer incidence rate 10 times greater than the rate for younger people, and the mortality rate for older cancer patients is 16 times greater than for younger patients. However,...

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