Cohort studies are a type of observational study commonly used in epidemiology and clinical research to investigate the relationships between exposures (such as risk factors or interventions) and outcomes (such as diseases or health-related events). In a cohort study, researchers identify a group of people (the cohort) who share a common characteristic or experience within a defined time period, and they follow this group over time to see how different exposures affect the outcomes of interest.
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