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In epidemiology, Period prevalence is the proportion of the population with a given disease or condition over a specific period of time. It could describe how many people in a population had a cold over the cold season in 2006, for example.

It is expressed as a percentage of the population and can be described by the following formula:

Period prevalence = Number of cases that occurred in a given period ÷ Number of people in the population during this period

See alsoEdit

References Edit

Gerstman, B.B. (2003). Epidemiology Kept Simple (2nd ed.), Hoboken NJ: Wiley-Liss.

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