Observational studies are a type of study in which researchers observe the behavior of a group of people and measure outcomes. Observational studies do not involve any intervention or manipulation of the subjects, and therefore cannot establish causality. However, they are powerful tools for collecting data to help answer important scientific questions. Observational studies can be used to describe the distribution of a variable among a population, to identify relationships between two or more variables, and to identify risk factors for a disease or other health outcome. Observational studies can be conducted using either a retrospective or a prospective study design.
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- The Personal FDA will be able to use the data to identify the factors that most influence any given aspect of health.