Title: Epidemiology of cancer - Wikipedia
Headings: Epidemiology of cancer
Epidemiology of cancer
Contents
Organizations
Studies
Risk factors
Rates and mortality
India
Canada
United States
Incidence of a second cancer in survivors
Children
Infants
See also
General:
References
External links

Content: It has been proposed that the age distribution of cancer incidence can be viewed as the distribution of probability to accumulate the required number of driver events by the given age. Over a third of cancer deaths worldwide (and about 75-80% of cancers in the United States) are due to potentially modifiable risk factors. The leading modifiable risk factors worldwide are: tobacco smoking, which is strongly associated with lung cancer, mouth, and throat cancer; drinking alcohol, which is associated with a small increase in oral, esophageal, breast, liver and other cancers; a diet low in fruit and vegetables,
physical inactivity, which is associated with increased risk of colon, breast, and possibly other cancers
obesity, which is associated with colon, breast, endometrial, and possibly other cancers
sexual transmission of human papillomavirus, which causes cervical cancer and some forms of anal cancer, vaginal cancer, vulvar cancer, penile cancer, rectal cancer, and oropharyngeal cancer. Men with cancer are twice as likely as women to have a modifiable risk factor for their disease. Other lifestyle and environmental factors known to affect cancer risk (either beneficially or detrimentally) include the use of exogenous hormones (e.g., hormone replacement therapy causes breast cancer ), exposure to ionizing radiation and ultraviolet radiation, and certain occupational and chemical exposures. Every year, at least 200,000 people die worldwide from cancer related to their workplace. Millions of workers run the risk of developing cancers such as pleural and peritoneal mesothelioma from inhaling asbestos fibers, or leukemia from exposure to benzene at their workplaces.