Table 2 Comparisons of the diagnostic values of PCR, CRP, and WBC for acute pyelonephritis (%)
From: Procalcitonin and C-reactive protein in urinary tract infection diagnosis
Index | Diagnostic reference value | Sensitivity | Specificity | Accuracy | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|---|
PCT | 1 ng/ml | 90.47 | 88 | 89 | 87 | 95 |
CRP | 20 mg/l | 85.71 | 48 | 86.9 | 58 | 80 |
WBC | 15000/mm3 | 57 | 44 | 71 | 46 | 55 |