negative predictive value (npv)

How is NPV Calculated?

The formula for calculating NPV is:

\[ \text{NPV} = \frac{\text{True Negatives (TN)}}{\text{True Negatives (TN) + False Negatives (FN)}} \]

Where:
- True Negatives (TN) are the cases where the test correctly identifies a non-diseased individual.
- False Negatives (FN) are the cases where the test incorrectly identifies a diseased individual as non-diseased.

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