What is the difference between prevalence rate and incidence rate?

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Expert Solution

Answer :prevalance rate refers to proportion of persons who have a condition at or during a particular time period,.

Incidence rate refers to the proportion or rate of persons who develop a condition during a particular time period.

Prevalance rate and incidence rate are used for different purposes and to answer different research questions.

The incidence rate is a measure of the frequency with which some event, such as a diseade or accident, occurs over a specified time period.incidence rate or "incidence"is numerically defined as the number of new cases of a disease within a time period, as a proportion of the number of people at risk for the disease.

The counting method of estimates of prevalance rate by dividing the estimated number of diseased persons by the total population size, taking loss to follow-up into account. The transition rate method uses estimates of transition rates and competing risk calculations to estimate prevalence.

Nightingale answered 1 year ago

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