Did you know that your Internet Explorer is out-of-date?

The library's website is best viewed on Internet Explorer 8 or higher, Firefox, Safari, or Chrome. You may click on the icons below to download the lastest version.

IE 8+ Firefox 19+ Chrome 25+ Safari 5+

About NNT/NNH Calculator
UT Southwestern Medical Center Library

  NNT/NNH Calculator
Subjects:  Clinical Medicine  |  Evidence Based Medicine  |  General Reference

This calculator produces measures of risk increase/decrease and number needed to treat or harm, including confidence intervals, if information about the probability of an outcome under control and experimental treatments is provided.

Close Window