TY - CHAP M1 - Book, Section TI - Chapter 1. Introduction to Epidemiology A1 - Greenberg, Raymond S. A1 - Daniels, Stephen R. A1 - Flanders, W. Dana A1 - Eley, John William A1 - Boring, John R. Y1 - 2005 N1 - T2 - Medical Epidemiology, 4e AB - Epidemiology is the study of the distribution and determinants of diseases within human populations. Research in this field is based primarily upon observing people directly in their natural environments.Epidemiology can be used for descriptive purposes, such as surveillance of the occurrence (incidence) of a particular illness.Epidemiology can be used for analytic purposes, such as studying risk factors for disease development.Epidemiologic methods can be used to assess the performance of diagnostic tests.Epidemiology can be used to study the progression or natural history of a disease.Epidemiologic methods can be used to study prognostic factors, which are determinants of the progression of a disease.Epidemiology can be used to evaluate treatments for a disease. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=545000 ER -