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Evidence Based Medicine Guide: EBM Calculators

Number Needed to Treat (NNT) - The Big Picture

In an January 26, 2015 article in the New York Times entitled Can This Treatment Help Me? There’s a Statistic for That, authors Austin Frakt and Aaron Carroll do an excellent job of summarizing the importance of NNT and explain how this concept relates to patient care decision making.

EBM Calculators


Online tools for the calculation of measures often needed in critical appraisal, e.g., likelihood ratios and the number needed to treat (NNT).