For medical accuracy, you can also consult the current Cochrane Handbook’s guidance on absolute risk reduction and number needed to treat: <Link url=”https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-15″ title=”Cochrane Handbook: Interpreting Results and Drawing Conclusions”/>.
Absolute Risk Reduction Calculator
Free online Absolute Risk Reduction Calculator. Enter any 2 values to calculate the missing variable.
Results are estimates for general information and are not medical advice. See our Disclaimer.