Probability that a negative test result is truly negative
Expansion
Negative Predictive Value
Purpose
Useful for excluding disease
Clinical Context
Negative predictive value equals true negatives divided by total negatives. High negative predictive value useful for screening to rule out disease.
Related Terms
- Positive predictive value
- Sensitivity
- Specificity
Key Points
- Negative predictive value high when sensitivity high; test with high negative predictive value useful for exclusion