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. 2016 Jan-Mar;7(1):51-3.
doi: 10.4103/2229-3485.173773.

Common pitfalls in statistical analysis: Absolute risk reduction, relative risk reduction, and number needed to treat

Priya Ranganathan  1 , C S Pramesh  2 , Rakesh Aggarwal  3
Affiliations

Common pitfalls in statistical analysis: Absolute risk reduction, relative risk reduction, and number needed to treat

Priya Ranganathan et al. Perspect Clin Res. 2016 Jan-Mar.

Abstract

In the previous article in this series on common pitfalls in statistical analysis, we looked at the difference between risk and odds. Risk, which refers to the probability of occurrence of an event or outcome, can be defined in absolute or relative terms. Understanding what these measures represent is essential for the accurate interpretation of study results.

Keywords: Biostatistics; numbers needed to treat; risk.

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References

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