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Unformatted text preview: Epidemiology 6000 Epidemiology 6000 Dr. H. Stockwell Epidemiology ¡ What is epidemiology? Definitions of Epidemiology ¡ The study of the distribution , determinants and deterrents of determinants and deterrents of morbidity and mortality in human populations. (Oleckno) Epidemiology Epidemiology is all around us…… Epidemiology ¡ Cornerstone of public health ¡ Basis for our understanding of disease ¡ Basis for our understanding of disease including distribution, natural history, antecedents risk factors ) and antecedents ( risk factors ) and prevention ( protective factors ) Epidemiology ¡ Population based ¡ “denominators” important to ¡ denominators important to understanding diseases and other event events Populations ¡ Concerned with disease in groups not predicting which specific individual will become ill ¡ How do we define populations? Epidemiology ¡ Translates qualitative impressions in numbers - quantifies ¡ Quantification is key to the epidemiologic approach epidemiologic approach ¡ Count cases ( numerators ) ¡ Evaluate in terms of those at risk ( denominators ) ( populations ) Basic assumptions of epidemiology ¡ Human disease does not occur at random random ¡ Causal and preventive factors can be identified through systematic identified through systematic investigation of different populations or subgroups of populations or subgroups of individuals in a population in different places or times places or times Epidemiology’s Unique...
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- Summer '08