Evidence-Based Practice / Unit 6 EBP 0837 short lesson, about 20 seconds
Same Data, Two Impressions
Captions available
The idea
A relative risk reduction and a risk difference can be calculated from the same data and give very different impressions of the same result.
In practice
One percentage point of absolute difference, reported as a fifty percent relative reduction.
Where people slip
Neither number is wrong. A reader given only the relative figure has been given the larger-sounding half of one result.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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