Answer:
a. Sensitivity: 96.2%
b. Specificity: 84.3%
c. PPV: 92.6%
Explanation:
a. Sensitivity = (Number of True Positive / Total Number with the Disease) * 100
b. Specificity = (Number of True Negative / Total Number without the Disease) * 100
c. PPV = (Number of True Positive / Total Number of Positive Test Results) * 100
Given the data in the table:
- True Positive (TP) = 499
- Total Number with the Disease = 519
- True Negative (TN) = 214
- Total Number without the Disease = 254
- Total Number of Positive Test Results = 539
Let's calculate each value:
a. Sensitivity = (499 / 519) * 100 ≈ 96.15%
b. Specificity = (214 / 254) * 100 ≈ 84.25%
c. PPV = (499 / 539) * 100 ≈ 92.57%