|
Diagnostic accuracy of serum PCT for the diagnosis of sepsis in critically ill patients with either primary or secondary BSI-related sepsis. |
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| PCT cutoff value (ng/mL) |
Sepsis type |
Sensitivity (%) |
Specificity (%) |
Positive predictive value (%) |
Negative predictive value (%) |
|
|
|||||
| PCT ≥ 0.25 |
Primary |
98.3 |
47.8 |
90.5 |
84.6 |
| Secondary |
90.3 |
47.8 |
82.3 |
64.7 |
|
|
|
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| PCT ≥ 0.50 |
Primary |
94.9 |
65.2 |
93.3 |
71.4 |
| Secondary |
83.9 |
65.2 |
86.7 |
60.0 |
|
|
|
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| PCT ≥ 1.00 |
Primary |
89.7 |
73.9 |
94.6 |
58.6 |
| Secondary |
72.6 |
73.9 |
88.2 |
50.0 |
|
|
|
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| PCT ≥ 2.00 |
Primary |
83.8 |
82.6 |
96.1 |
50.0 |
| Secondary |
58.1 |
82.6 |
90.0 |
42.2 |
|
|
PCT: procalcitonin; BSI: blood stream infection. | |||||
Charles et al. BMC Infectious Diseases 2008 8:163 doi:10.1186/1471-2334-8-163 |
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