Table 2.
AUC in predicting SAP occurrence, ICU admission and good outcomes at discharge.
| AUC (95% CI) | Cutoff point | Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|---|---|
| AUC in predicting SAP occurrence | ||||||
| NLR | 0.748 (0.695-0.801) | 6.06 | 0.794 | 0.608 | 0.568 | 0.819 |
| SII | 0.707 (0.650-0.763) | 1039 | 0.825 | 0.521 | 0.528 | 0.821 |
| PLR | 0.612 (0.548-0.677) | 187.5 | 0.540 | 0.675 | 0.519 | 0.693 |
| SIRI | 0.707 (0.650-0.764) | 2.291 | 0.500 | 0.438 | 0.865 | 0.833 |
| AUC in predicting ICU admission | ||||||
| NLR | 0.732 (0.671-0.786) | 5.50 | 0.866 | 0.534 | 0.495 | 0.874 |
| SII | 0.701 (0.644-0.758) | 1039 | 0.839 | 0.505 | 0.475 | 0.854 |
| PLR | 0.590 (0.522-0.657) | 222.9 | 0.420 | 0.769 | 0.495 | 0.714 |
| SIRI | 0.680 (0.620-0.734) | 2.802 | 0.795 | 0.481 | 0.447 | 0.807 |
| AUC in predicting good outcomes at discharge | ||||||
| NLR | 0.761 (0.707-0.814) | 7.19 | 0.811 | 0.612 | 0.523 | 0.858 |
| SII | 0.758 (0.705-0.812) | 1384 | 0.802 | 0.632 | 0.532 | 0.792 |
| PLR | 0.642 (0.581-0.703) | 185.1 | 0.784 | 0.536 | 0.473 | 0.834 |
| SIRI | 0.722 (0.665-0.779) | 2.676 | 0.595 | 0.751 | 0.217 | 0.394 |
AUC, area under receiver operating characteristic; NLR, neutrophil-to-lymphocyte ratio; SII, systemic immune-inflammation index; PLR, platelet-to-lymphocyte ratio; SIRI, systemic inflammation response index; SAP, stroke-associated pneumonia; ICU, intensive care unit.