Number Needed to Treat Calculator (NNT) Medical Algorithm

Are you evaluating the benefit of treatment by calculating the 'number to treat'?

Yes

Number of people in control group

Number of people in control group who develop condition of interest during time interval

Number of people in active treatment group

Number of people in active treatment group who develop condition of interest during time interval

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Data complete?

Evaluation appropriate?

Event rate in control group

Event rate in active treatment group

Relative risk reduction with active treatment

Absolute risk reduction with active treatment

The number of patients you need to treat in order to prevent condition during period

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Caution: A qualified health practitioner should verify all results.
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Interpretation and Description

References

Next Steps in Evaluation

Other Testing
- Likelihood of Being Helped versus Harmed (LHH)

Evaluation

Results

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MedicalAlgorithms.com APIs

Power Your Solutions with 5,000+ Automated Medical Analytics

Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Objective

ICD-10

Number Needed to Treat (NNT), Relative Risk Reduction (RRR, Relative Risk Difference) and Absolute Risk Reduction (ARR, Absolute Risk Difference)

Purpose: To use the number needed to treat for looking at the benefits of therapy to prevent a given condition from occurring during a time period.

Evaluation

Results

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MedicalAlgorithms.com APIs

Power Your Solutions with 5,000+ Automated Medical Analytics

Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Objective

ICD-10