## Abstract

In the previous lesson on Measures of Effect, we focused exclusively on **ratio measures of effect**. In this lesson, we consider **difference measures of effect** and other related measures that allow the investigator to consider the potential public health impact of the results obtained from an epidemiologic study.

## Keywords

Risk Ratio Cumulative Incidence Excess Risk Prevent Fraction Risk Difference
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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