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Related to point prevalence: Period prevalence
The prevalence of a disease during a specified time.
See also: prevalence
the total number of cases of a specific disease in existence in a given population at a certain time, i.e. prevalence. See also cross-sectional study.
the prevalence at a particular moment. Called also spot prevalence.
the number of cases of a disease which occur during a specified period, e.g. annual, lifetime, as a percentage of the total or average total number of animals at risk during the same period.
as for period prevalence (above) except that the assessment is made at a specific point in time rather than over a period, a rather impractical exercise.
the number of patients who have the disease at a particular time, divided by the population at risk of having the disease at that time.
see instantaneous prevalence (above).