Table 3.
Predictive performance of hematological parameters in the fever clinic for the diagnosis of COVID-19 patients infected with the Omicron variant a
| Variables | AUC | Cut-off value | Sensitivity (%) | Specificity (%) | 95% CI | P -value |
|---|---|---|---|---|---|---|
| WBC, ×109/L | 0.700 | ≤ 8.37 | 84.95 | 48.08 | 0.680–0.720 | < 0.01 |
| NEU, ×109/L | 0.637 | ≤ 6.48 | 80.92 | 43.68 | 0.616–0.658 | < 0.01 |
| LYM, 109/L | 0.738 | ≤ 0.97 | 70.94 | 64.42 | 0.718–0.756 | < 0.01 |
| MON, ×109/L | 0.552 | ≤ 0.59 | 63.56 | 46.70 | 0.530–0.573 | 0.01 |
| RBC, ×1012/L | 0.539 | > 4.82 | 36.51 | 71.43 | 0.517–0.561 | 0.01 |
| HGB, g/L | 0.533 | > 138 | 45.08 | 63.46 | 0.511–0.554 | 0.01 |
| HCT, % | 0.596 | > 41.3 | 45.50 | 70.05 | 0.574–0.617 | < 0.01 |
| MCV, fl. | 0.594 | > 87 | 65.20 | 50.27 | 0.572–0.615 | < 0.01 |
| MCHC, g/L | 0.687 | ≤ 344 | 88.97 | 44.37 | 0.666–0.707 | < 0.01 |
| RDW-CV, % | 0.533 | ≤ 12.8 | 71.31 | 35.99 | 0.511–0.555 | 0.01 |
| Platelets, ×109/L | 0.592 | ≤ 249 | 85.77 | 27.75 | 0.571–0.614 | < 0.01 |
| MPV, fl. | 0.555 | > 15.8 | 63.79 | 45.88 | 0.533–0.576 | < 0.01 |
| PCT,% | 0.563 | ≤ 20.5 | 74.66 | 34.75 | 0.541–0.584 | < 0.01 |
| PDW, % | 0.555 | > 15.8 | 63.79 | 45.88 | 0.533–0.576 | < 0.01 |
| dNLR | 0.552 | > 1.77 | 83.68 | 27.34 | 0.530–0.573 | < 0.01 |
| NLR | 0.598 | > 3.89 | 70.94 | 44.78 | 0.577–0.619 | < 0.01 |
| PLR | 0.702 | > 223.26 | 61.40 | 67.31 | 0.681–0.721 | < 0.01 |
| MLR | 0.713 | > 0.65 | 57.53 | 75.00 | 0.693–0.732 | < 0.01 |
| SII | 0.563 | > 871.84 | 63.56 | 47.12 | 0.542–0.585 | < 0.01 |
| SIRI | 0.568 | > 1.62 | 77.72 | 33.93 | 0.546–0.589 | < 0.01 |
a Abbreviations: AUC, area under curve; CI, confidence intervals