Risk difference: Difference between revisions
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Syn.: [[Absolute risk reduction]] | Syn.: [[Absolute risk reduction]] | ||
(Related concepts: [[number needed to treat]], [[odds ratio]] and [[relative risk reduction]]) | (Related concepts: [[number needed to treat]], [[Odds ratio (OR)|odds ratio]] and [[relative risk reduction]]) | ||
== Reference == | == Reference == | ||
http://htaglossary.net/risk-difference | http://htaglossary.net/risk-difference | ||
Latest revision as of 16:12, 17 November 2023
The value of the difference between the probability that an event will occur in the group exposed to a given factor and the probability that this event will occur in the group not exposed to this factor.
Note: For example, if the results of a trial were that the probability of death was 25% in the control group and 10% in the experimental group, the absolute risk reduction would be 0.25 – 0.10 = 0.15.
Syn.: Absolute risk reduction
(Related concepts: number needed to treat, odds ratio and relative risk reduction)