Problem
As a researcher, you are comparing tuberculin skin test (TST) and a whole-blood interferon gamma assay for the diagnosis latent tuberculosis infection (LTBI) among 10,000 study participants and come up with the results showed in the table below. What is the percentage of agreement between the 2 tests?
|
|
Tuberculin Skin Test
|
Total
|
|
|
+
|
-
|
|
|
INTERFERON GAMMA +
|
270
|
97
|
367
|
|
INTERFERON GAMMA -
|
30
|
9603
|
9633
|
|
Total
|
300
|
9,700
|
10,000
|