Quantitative Concept
statistical prevalence
sta·tis·ti·cal prev·a·lence
Subclass of:
Morbidity - disease rate
Definitions related to statistical prevalence:
  • (prevalence) The ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population.
    NCI
    U.S. National Cancer Institute, 2021
  • (prevalence) The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to the number of new cases in the population at a given time.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Prevalence, in epidemiology, the proportion of a population with a disease or a particular condition at a specific point in time (point prevalence) or over a specified period of time (period prevalence). Prevalence is often confused with incidence, which is concerned only with the measure of new...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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