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Evidence-Based Practice / Unit 6   EBP 0836 short lesson, about 20 seconds

Relative Risk Reduction

Captions available

The idea

Relative risk reduction expresses the change in risk as a proportion of the comparison group's risk, usually as a percentage.

In practice

A one-point difference on a base of two points, reported as a fifty percent reduction.

Where people slip

A relative reduction is a percentage of a percentage. It is the measure most often quoted and the least self-explanatory.

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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