Enter the incidence risk among both the exposed and non-exposed groups into the calculator to determine the attributable risk.
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Attributable Risk Formula
The following formula can be used to calculate the attributable risk.
AR = I_e - I_u
- Where AR is the attributable risk
- Ie is the incidence rate in the exposed group
- Iu is the incidence rate in the non-exposed group
To calculate the attributable risk, subtract the incidence rate in the non-exposed group from the rate in the exposed group.
Attributable Risk Definition
Attributable risk is the difference between the incidence rate in an exposed group to a non-exposed group.
Attributable Risk Example
How to calculate attributable risk?
- First, determine the incidence rate in the exposed group.
Measure the incidence rate in the exposed group.
- Next, determine the incidence rate in the non-exposed group.
Measure the incidence rate in the non-exposed group.
- Finally, calculate the attributable risk.
Using the formula above, calculate the attributable risk.
FAQ
What is an attributable risk?
The definition of the attributable risk is as follows: a measure of the prevalence of a disease within a group.
