Definitions for prevalence

This page provides all possible meanings and translations of the word prevalence

Princeton's WordNet

  1. prevalence(noun)

    the quality of prevailing generally; being widespread

    "he was surprised by the prevalence of optimism about the future"

  2. prevalence(noun)

    (epidemiology) 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

  3. preponderance, prevalence(noun)

    a superiority in numbers or amount

    "a preponderance of evidence against the defendant"

Wiktionary

  1. prevalence(Noun)

    The quality or condition of being prevalent; superior strength, force, or influence; general existence, reception, or practice; wide extension; as the prevalence of virtue, of a fashion, or of a disease; the prevalence of a rumor.

  2. prevalence(Noun)

    The total number of cases of a disease in the given statistical population at a given time.

  3. prevalence(Noun)

    The total number of cases of a disease in the given statistical population at a given time, divided by the number of individuals in the population.

Webster Dictionary

  1. Prevalence(noun)

    the quality or condition of being prevalent; superior strength, force, or influence; general existence, reception, or practice; wide extension; as, the prevalence of virtue, of a fashion, or of a disease; the prevalence of a rumor

Freebase

  1. Prevalence

    In epidemiology, the prevalence or prevalence proportion is the proportion of a population found to have a condition. It is arrived at by comparing the number of people found to have the condition with the total number of people studied, and is usually expressed as a fraction, as a percentage or as the number of cases per 10,000 or 100,000 people. "Point prevalence" is the proportion of a population that has the condition at a specific point in time. "Period prevalence" is the proportion of a population that has the condition at some time during a given period, and includes people who already have the condition at the start of the study period as well as those who acquire it during that period. "Lifetime prevalence" is the proportion of a population that at some point in their life have experienced the condition. Prevalence estimates are used by epidemiologists, health care providers, government agencies and insurers. Prevalence is contrasted with incidence, which is a measure of new cases arising in a population over a given period.

U.S. National Library of Medicine

  1. 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.


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