This document discusses and compares case-control and cohort studies in epidemiology. It defines epidemiology as the study of health-related states in populations and applying this to control health problems. Analytical epidemiology focuses on testing hypotheses about individuals within populations. Both case-control and cohort studies are described as types of analytical epidemiology. Case-control studies are retrospective while cohort studies are prospective. The key differences and advantages/disadvantages of each study type are outlined.
This document discusses and compares case-control and cohort studies in epidemiology. It defines epidemiology as the study of health-related states in populations and applying this to control health problems. Analytical epidemiology focuses on testing hypotheses about individuals within populations. Both case-control and cohort studies are described as types of analytical epidemiology. Case-control studies are retrospective while cohort studies are prospective. The key differences and advantages/disadvantages of each study type are outlined.
The document outlines the workflow breakdown structure (WBS) for applying to a PhD program. It details the necessary documents, exams, selection criteria for universities and programs, the application process, recommendations, essays, and financial support options. The WBS breaks the process down into 7 main sections - documents, exams, universities and programs research, application, recommendations, essays, and financial support - which are each further broken down into 2-6 subsections or levels of detail.