Number Needed to Treat (NNT) Calculator
This calculator helps healthcare professionals and researchers estimate the effectiveness of a treatment by determining the number of patients needed to be treated to prevent one additional adverse outcome.
Calculate NNT
Results
NNT:
-
Data Source and Methodology
All calculations are based on standard statistical methods for calculating NNT. For more detailed information, refer to the scientific literature available on this topic.
The Formula Explained
The NNT is calculated using the formula:
\[
\text{NNT} = \frac{1}{\text{Event Rate in Control Group} - \text{Event Rate in Treatment Group}}
\]
Glossary of Terms
- Event Rate in Control Group: The percentage of the control group that experiences the event.
- Event Rate in Treatment Group: The percentage of the treatment group that experiences the event.
- NNT: The number of patients that need to be treated to prevent one additional adverse outcome.
Frequently Asked Questions (FAQ)
What is NNT?
NNT stands for 'Number Needed to Treat' and is a measure used to express the effectiveness of a healthcare intervention.
Why is NNT important?
NNT provides a clear metric on how many patients need a particular treatment to prevent one additional adverse event.