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- The study of the frequency and distribution of an illness in a population.
- In psychiatry, the study of the incidence, distribution, prevalance, and
control of mental disorders in a given population. Common terms in
epidemiology are:
- endemic - Native to or restricted to a particular area.
- epidemic - The outbreak of a disorder that affects significant numbers of
persons in a given population at any given time.
- pandemic - Occurring over a very wide area, in many countries, or
universally.
See also incidence, period prevalence, and point prevalence in list of
research terms.
Source: Edgerton, Jane E. 1994. American Psychiatric Glossary, 7th Edition. Washington, DC: American Psychiatric Press
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