Enter the total number of new cases of a disease and the total average population that could be exposed to the disease in the same time period to determine the incidence rate.
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Incidence Rate Formula
The following formula is used to calculate an incidence rate.
IR = #NC / AP * 100
- Where IR is the incidence rate (%)
- #NC is the number of new cases during the time period
- AP is the average population during the time period
Incidence Rate Definition
An incidence rate is a measure of the total number of people that contract a disease over a period of time compared with with people who could have been exposed to the disease.
Incidence Rate Example
How to calculate incidence rate?
- First, determine the number of new cases.
In the specific time period being analyzed, determine the total number of new cases of the specific disease.
- Next, determine the average population.
Measure the average population that could be exposed to the disease during the same time period.
- Finally, calculate the incidence rate.
Enter the values from step 1 and 2 into the formula above to determine the incidence rate.
FAQ
An incidence rate is a measure of the total number of people that contracted a disease over a period of time compared to the total number of people that could have been exposed to the disease.
