Enter the incidence risk among both the exposed and non-exposed group into the calculator to determine the attributable risk.

## Attributable Risk Formula

The following formula can be use to calculate the attributable risk.

AR = I_{e} – I_{u}

- Where AR is the attributable risk
- I
_{e}is the incidence rate in the exposed group - I
_{u}is the incidence rate in non-exposed group

## 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.

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