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The sensitivities, specificities, positive predictive values (PPV), and negative predictive values (NPV) for heparin-binding protein (HBP) as a marker of spontaneous bacterial peritonitis.
| HBP cutoff | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|
| ≥50 ng/mL | 61.3% | 46.9% | 52.8% | 55.6% |
| ≥100 ng/mL | 35.5% | 75.0% | 57.9% | 54.5% |
| ≥150 ng/mL | 25.8% | 90.6% | 72.7% | 55.8% |
| ≥200 ng/mL | 19.3% | 90.6% | 66.7% | 53.7% |
| ≥250 ng/mL | 12.9% | 93.7% | 66.7% | 52.6% |
