The formula to calculate the Specificity (S) is:
\[ S = \frac{TN}{TN + FP} \]
Where:
Specificity in health care refers to the ability of a medical test or diagnostic tool to accurately identify individuals who truly have a particular condition or disease while minimizing the likelihood of false positive results. It measures how well a test can correctly identify those who are healthy or without the condition being tested for. Specificity is crucial in health care as it ensures patients receive appropriate and necessary care, avoiding unnecessary treatment or interventions.
Let's assume the following values:
Using the formula to calculate the Specificity:
\[ S = \frac{100}{100 + 10} = 0.909 \]
The Specificity is 0.909 or 90.9%.
