This is an archived version. For the current version, please go to training.cochrane.org/handbook/current.

12.5  Interpreting results from dichotomous outcomes (including numbers needed to treat)

12.5.1 Relative and absolute risk reductions

12.5.2 More about the number needed to treat (NNT)

12.5.3 Expressing absolute risk reductions

12.5.4 Computations