Variables | Youden Index | Cut-off criterion | Sensitivity | Specificity | +LR | -LR | AUC (95%CI) |
---|---|---|---|---|---|---|---|
Age (years) | 0.419 | ≥ 65 | 67.57% | 74.36% | 2.64 | 0.44 | 0.725 (0.647–0.793) |
White blood cell (×109/L) | 0.363 | > 6.10 | 59.46% | 76.92% | 2.58 | 0.53 | 0.714 (0.635–0.783) |
Lymphocyte (× 109/L) | 0.496 | ≤0.71 | 67.57% | 82.05% | 3.76 | 0.40 | 0.766 (0.691–0.830) |
ALT (U/L) | 0.332 | ≥ 30 | 81.08% | 52.14% | 1.69 | 0.36 | 0.676 (0.596–0.749) |
AST (U/L) | 0.423 | ≥ 37 | 75.68% | 66.67% | 2.27 | 0.36 | 0.772 (0.697–0.835) |
LDH (U/L) | 0.597 | ≥ 295.0 | 83.78% | 75.86% | 3.47 | 0.21 | 0.860 (0.795–0.911) |
Albumin (g/L) | 0.304 | < 28.5 | 43.24% | 87.18% | 3.37 | 0.65 | 0.685 (0.605–0.757) |
Creatinine (μ mol/L) | 0.340 | ≥ 88.0 | 45.95% | 88.03% | 3.84 | 0.61 | 0.659 (0.579–0.734) |
BUN (mmol/L) | 0.479 | > 5.12 | 67.57% | 80.34% | 3.44 | 0.40 | 0.763 (0.688–0.828) |
CK-MB (ng/mL) | 0.498 | > 0.70 | 77.78% | 72.00% | 2.78 | 0.31 | 0.803 (0.726–0.866) |
Troponin I (ng/L) | 0.507 | > 4.70 | 88.89% | 61.76% | 2.32 | 0.18 | 0.821 (0.746–0.881) |
Prothrombin time (s) | 0.209 | > 14.20 | 37.84% | 83.04% | 2.23 | 0.75 | 0.618 (0.535–0.697) |
D-Dimer (μ g/ml) | 0.307 | ≥ 5.00 | 32.43% | 98.21% | 18.16 | 0.69 | 0.691 (0.611–0.764) |
C-Reactive protein (mg/L) | 0.639 | ≥ 38.00 | 86.49% | 77.39% | 3.83 | 0.17 | 0.852 (0.785–0.904) |
ESR (mm/h) | 0.294 | ≥60.0 | 63.89% | 65.52% | 1.85 | 0.55 | 0.611 (0.529–0.689) |
Procalcitonin (ng/ml) | 0.581 | > 0.11 | 83.78% | 74.31% | 3.26 | 0.22 | 0.854 (0.787–0.907) |
Ferritin (ng/ml) | 0.602 | ≥ 950.00 | 69.44% | 90.74% | 7.50 | 0.34 | 0.872 (0.806–0.921) |