Cancer epidemiology
Cancer Epidemiology is the study of the distribution, determinants, and frequency of cancer cases in specific populations or groups. It is a key discipline in the field of epidemiology and plays a crucial role in guiding cancer prevention and control strategies.
Overview[edit | edit source]
Cancer epidemiology involves the application of epidemiological methods to uncover the cause and impact of cancer. It provides the factual basis for interventions aimed at reducing the burden of cancer morbidity and mortality. It is an interdisciplinary field that draws upon methods from biostatistics, genetics, molecular biology, and social sciences.
History[edit | edit source]
The history of cancer epidemiology can be traced back to the 18th century when Percivall Pott identified the first environmental cause of cancer - exposure to soot in chimney sweeps leading to scrotal cancer. Since then, numerous environmental, lifestyle, and genetic risk factors for various types of cancer have been identified.
Methods[edit | edit source]
Cancer epidemiologists use a variety of research methods, including cohort studies, case-control studies, and cross-sectional studies. They also use molecular epidemiology techniques to understand the role of genetic and environmental factors in cancer development.
Risk Factors[edit | edit source]
Cancer epidemiology has identified several risk factors for cancer, including tobacco smoking, alcohol consumption, diet, physical inactivity, obesity, radiation exposure, and certain infections.
Cancer Prevention[edit | edit source]
Findings from cancer epidemiology studies have led to effective strategies for cancer prevention, such as tobacco control, vaccination against cancer-causing infections, and screening for early detection of cancer.
Future Directions[edit | edit source]
Future directions in cancer epidemiology include the integration of genomics and epigenomics, the study of cancer disparities, and the development of precision prevention strategies.
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Contributors: Prab R. Tumpati, MD
