Subpopulation

Subpopulations are groups within a population. The population might be defined by, for example, the presence of a certain disease of interest to researchers. A subpopulation within that will have additional traits, such as disease severity, or failure of previous treatments, or specific genetic traits, or belonging to a certain age group that are also of interest. Subpopulations are identified in this way to allow statistical analysis with respect to the additional traits of interest.

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