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The sensitivities, specificities, positive predictive values (PPV), and negative predictive values (NPV) for the peripheral blood leukocyte count (WBC) as a marker of spontaneous bacterial peritonitis.
| WBC cutoff | Sensitivity | Specificity | PPV | NPV |
|---|---|---|---|---|
| ≥6000/μL | 61.3% | 71.9% | 67.9% | 65.7% |
| ≥7000/μL | 41.9% | 75.0% | 61.9% | 57.1% |
| ≥8000/μL | 29.0% | 90.6% | 75.0% | 56.9% |
| ≥9000/μL | 22.6% | 93.7% | 77.8% | 55.6% |
| ≥10,000/μL | 12.9% | 96.9% | 80.0% | 53.4% |
