Sensitivity
Specificity
Positive predictive value
Negative predictive value
PCT, ng/mL
<0.1
86.2
78.9
67.6
91.8
<0.25
93.1
59.6
54.0
94.4
<0.5
93.1
50.9
49.1
93.5
<1.0
100.0
31.6
42.6
100.0
Table 2:
Diagnostic validity of procalcitonin (PCT) in differentiating pulmonary tuberculosis from bacterial acquired pneumonia according to the different value