Table II.
Comparison of laboratory findings in the positive and negative OFC results
| Indicator | Negative OFC result, median (IQR) (n = 49) |
Positive OFC result, median (IQR) (n = 26) |
P value |
|---|---|---|---|
| Procalcitonin level (ng/mL) | 0.02 (0.02-0.03) | 0.04 (0.02-0.21) | <.001 |
| TARC level (pg/mL) | 787 (585-1032) | 1051(836-1651) | .021 |
| Neutrophil count (/μL) | 3930 (2470-4940) | 6665 (5435-9158) | <.001 |
| Eosinophil count (/μL) | 150 (100-210) | 100 (97-154) | .011 |
| Hematocrit level (%) | 34.9 (32.2-36.8) | 34.3 (33.5-35.8) | .760 |
| Platelet count (104/mm3) | 39.75 (35.0-45.9) | 33.1 (28.1-38.1) | .173 |
| CRP level (mg/dL) | 0.04 (0.04-0.04) | 0.04 (0.04-0.04) | .716 |
| LDH level (U/L) | 299 (275-334) | 299 (272-315) | .388 |
| pH | 7.424 (7.404-7.45) | 7.382 (7.375-7.413) | <.001 |
| HCO3– level (mEq/L) | 20.1 (19.1-21.6) | 18.35 (16.6-21.9) | .074 |
| Methemoglobin level (%) | 0.6 (0.5-0.7) | 0.6 (0.5-0.7) | .425 |
CRP, C-reactive protein; LDH, lactate dehydrogenase.