Sensitivity and Specificity
Example
What if an ENT specialist examined your 100 patients, and came up with the following results? Re-calculate and interpret the test statistics for the diagnostic test (remember, the gold standard results will never change).
Ultrasound (gold standard) | Total | ||
Enlarged (+) | Not Enlarged (-) | ||
Physical Examination | |||
Enlarged (+) | 35 | 10 | 45 |
Not Enlarged (-) | 5 | 50 | 55 |
Total | 40 | 60 | 100 |
Reflection
Re-calculate and interpret the test statistics for the diagnostic test.