EPI 390 Study Guide - Final Guide: Percivall Pott, Cohort Study, Epidemiology
Document Summary
Number of deaths due to a specific disease within a specified time period divided by the number of cases of that disease during the same time period x 100. Believed disease to be the result of four humors. Thought to be the first person to describe an environmental cause of cancer. First linked cholera outbreaks in london to contaminated water. In epidemiolgoy experimental studies are implented as intervention studies. Investigation involbing intentional change is some aspect of the status of the subjects, intro of a preventive or therapeutic regimen. Analytic studies attempts to identify risk factors that explain health related states or events and tests specific hypotheses that are often developed in descriptive studies. Descriptive studies are observational, analytic studies may be either observational or experimental. Researchers evaluate the strength of the relationship between an exposure and disease variables. Four types of analytic studies: case control, cross sectional study, ecologic study, cohort study.
