Cancer incidence

Cancer Incidence refers to the number of new cases of cancer diagnosed in a specified population during a specified time period. It is usually reported as the number of cases per 100,000 individuals per year.

Definition

Cancer incidence is a term used in epidemiology to describe the occurrence of new cases of cancer in a population over a specific time period. It is a measure of the risk of developing cancer. The incidence rate is calculated by dividing the number of new cases by the number of individuals at risk in the population, usually per 100,000 individuals per year.

Factors Influencing Cancer Incidence

Several factors can influence cancer incidence rates. These include age, gender, genetics, lifestyle factors, environmental exposure, and socioeconomic status. For example, the incidence of certain types of cancer, such as breast cancer and prostate cancer, is higher in older individuals. Lifestyle factors such as smoking, diet, and physical activity can also influence cancer incidence rates.

Cancer Incidence Worldwide

Cancer incidence rates vary widely across the world. According to the World Health Organization, the highest cancer incidence rates are found in Australia, New Zealand, North America, and Western Europe. The lowest rates are found in Africa and Asia. The types of cancer that are most common also vary by region.

Cancer Incidence in the United States

In the United States, the American Cancer Society publishes annual estimates of cancer incidence. These estimates are based on data from the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) Program. The most common types of cancer in the United States are breast cancer, lung cancer, prostate cancer, and colorectal cancer.

See Also

• Cancer mortality
• Cancer survival rates
• Cancer epidemiology
• Cancer prevention

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