Xray No TB Yes TB Total
Negative 1739 8 1747
Positive 51 22 73
Total 1790 30 1820
Calculate the sensitivity and specificity of an X-ray as a screen for TB and write a brief conclusion statement.
We can assume that there are four possible groups of patients, as indicated (a, b, c, d) in the table: ...
From these we determine the sensitivity and specificity as follows: ...
Complete, step-by-step solutions for both Sensitivity and Specificity.