Table 4.
n | AUC | P | Cut‐Off | Sensitivity | Specificity | PPV | NPV | |
---|---|---|---|---|---|---|---|---|
Procalcitonin levels, μg/L | 89 | 0.686 | 0.001 | >6 | 67.65 | 69.09 | 57.5 | 77.6 |
INR | 99 | 0.681 | 0.003 | >1.25 | 55.26 | 85.25 | 70.0 | 75.4 |
CRP, mg/L | 101 | 0.670 | 0.002 | >177 | 63.16 | 68.25 | 54.5 | 75.4 |
Total protein, mg/dL | 82 | 0.659 | 0.009 | ≤5.9 | 77.78 | 54.35 | 57.1 | 75.8 |
Creatinine levels, mg/dL | 96 | 0.654 | 0.011 | >0.5 | 65.79 | 72.41 | 61.0 | 76.4 |
D‐dimer, μg/L | 99 | 0.651 | 0.007 | >2787 | 65.79 | 60.66 | 51.0 | 74.0 |
Prothrombin time, s | 85 | 0.637 | 0.035 | >15.1 | 48.65 | 83.33 | 69.2 | 67.8 |
Indirect bilirubin, mg/dL | 92 | 0.635 | 0.023 | >0.23 | 63.89 | 69.64 | 57.5 | 75.0 |
Lymphocyte cells/μL | 101 | 0.633 | 0.021 | ≤930 | 63.16 | 66.67 | 53.3 | 75.0 |
Platelet counts cells/μL | 101 | 0.628 | 0.026 | ≤173 000 | 78.95 | 49.21 | 48.4 | 79.5 |
Receiver operating characteristic analysis was used to determine the optimal cut‐off values of laboratory findings to predict the need for an intensive care unit.
AUC, area under an ROC curve; CRP, C‐reactive protein; INR,international normalized ratio; NPV, negative predictive value; PPV, positive predictive value.