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Combinations of parameters leading to minor improvement
| Parameter | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|
| CRP + IL-6 | 84% | 68% | 82% | 71% |
| CRP + procalcitonin | 83% | 83% | 89% | 74% |
| CRP + leukocytes | 93% | 59% | 81% | 81% |
| IL-6 + procalcitonin | 83% | 68% | 81% | 71% |
| IL-6 + leukocytes | 89% | 50% | 75% | 73% |
| Procalcitonin + leukocytes | 73% | 79% | 86% | 63% |
CRP = C-reactive protein; IL-6 = interleukin-6.
