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Ardis Hanson

and Bruce Lubotsky Levin

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date: 23 June 2021

Epidemiology, a basic science of public health, is a quantitative discipline based on probability, statistics, research methodologies, and disease etiology, to examine what factors cause, exacerbate, and/or prevent disease (morbidity) and death (mortality). Epidemiology can increase our understanding of at-risk populations, meet selected needs for addressing specific disease states or physical/mental/substance use disorders, identify services utilization, and potentially drive policy. Hence, a basic understanding of the principles and applications of epidemiological vocabulary, methods, and theoretical frameworks is essential for the practicing pharmacist. This chapter examines the core functions of epidemiology, provides a brief history of the field and subspecialties in epidemiology, and frames epidemiology at the national and international levels. In addition, the chapter discusses the distinct vocabularies, measures, methods, and studies commonly employed by epidemiologists.

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