Events, characteristics, or other definable entities that have the potential to bring about a change in a health condition or other defined outcome.
Epidemiologic Studies
Studies designed to examine associations, commonly, hypothesized causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. The common types of analytic study are CASE-CONTROL STUDIES; COHORT STUDIES; and CROSS-SECTIONAL STUDIES.
Epidemiologic Methods
Research techniques that focus on study designs and data gathering methods in human and animal populations.
Epidemiologic Research Design
The form and structure of analytic studies in epidemiologic and clinical research.