This is an archived version of the Handbook. For the current version, please go to training.cochrane.org/handbook/current or search for this chapter here.

12.5.4.1 Computing NNT from a risk difference (RD)

12.5.4.2 Computing absolute risk reduction or NNT from a risk ratio (RR)

12.5.4.3 Computing absolute risk reduction or NNT from an odds ratio (OR)

12.5.4.4 Computing risk ratio from an odds ratio (OR)

12.5.4.5 Computing confidence limits