Lec 8 Epidemiology_I - Basic Epidemiologic Principles Janet...

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Basic Epidemiologic Basic Epidemiologic Principles Principles Janet M. Scarlett, DVM, MPH, PhD
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Origin of the Term Origin of the Term Epi Epi demi demi ology ology upon people or population study of
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Epidemiology is: Epidemiology is: the study of the distribution and determinants of disease frequency in man (or animals). a method of reasoning about disease that deals with biological inferences derived from observations of disease phenomena in population groups. (D.E. Lilienfeld, 1978) the study of the distribution and determinants of health related states or events in specified populations and the application of this study to control of health problems.
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Distribution: Determinants:   Person (host)  Place  Time    Factors that are  associated with disease Disease”: Populations:    Health-related states or  events. Disease is defined  broadly since epidemiologic  methods can be applied to  the study of a wide range of  topics (e.g., injuries, health  care delivery).    Focus is on the health of  an aggregate of  individuals
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Epidemiologic I nvestigation and Epidemiologic I nvestigation and Laboratory Experimentation Laboratory Experimentation Epidemiologic Research Laboratory Research Environment: natural “real world” artificial, highly “controlled” Population: heterogeneous (e.g.,
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This note was uploaded on 05/05/2009 for the course FD SC 396 taught by Professor Gravani during the Spring '09 term at Cornell University (Engineering School).

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Lec 8 Epidemiology_I - Basic Epidemiologic Principles Janet...

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