Number needed to treat

What is Number needed to treat?

Number needed to treat meaning The number of people who need to be treated over a specific period of time to promote one additional good outcome (or prevent one additional bad outcome). The number needed to treat (NNT) for a treatment can be known only if clinical trials of the treatment have been performed.See also number needed to harm.

 

reference: national Cancer Institute – Glossary for Registrars

Tags: ,