Positive Predictive Value Calculator

Calculate Positive Predictive Value



Formula

The formula to calculate the Positive Predictive Value (PPV) is:

\[ PPV = \frac{TP}{TP + FP} \times 100 \]

Where:

Positive Predictive Value Definition

Positive Predictive Value (PPV) is a measure of the performance of a diagnostic test or screening method. It represents the probability that a person who has a positive test result actually has the disease. A higher PPV indicates that the test has a lower rate of false positives and is more reliable when it gives a positive result.

Example Calculation

Let's assume the following values:

Using the formula to calculate the Positive Predictive Value (PPV):

\[ PPV = \frac{80}{80 + 20} \times 100 = 80 \]

The Positive Predictive Value (PPV) is 80%.