Table 2.

Diagnostic performance of the eosinophil count and the C-reactive protein level in the prediction of sepsis on intensive care unit admission

Variable	Noninfection versus infection		SIRS versus infection
	C-reactive protein level	Eosinophil cell count	C-reactive protein level	Eosinophil cell count
Cutoff value	>70 mg/l	<50 cells/mm3	>80 mg/l	<40 cells/mm3
Sensitivity (%)	68 (59 to 76)	80 (71 to 86)	68 (59 to 79)	80 (71 to 86)
Specificity (%)	61 (47 to 74)	91 (79 to 96)	55 (32 to 76)	80 (55 to 93)
Positive likelihood ratio	1.77 (1.25 to 2.51)	9.12 (3.9 to 21)	1.52 (0.92 to 2.50)	4.00 (1.65 to 9.65)
Negative likelihood ratio	0.52 (0.39 to 0.69)	0.21 (0.15 to 0.31)	0.57 (0.41 to 0.81)	0.25 (0.17 to 0.36)
Area under the receiver operating characteristic curve	0.77 (0.70 to 0.84)	0.89 (0.83 to 0.94)	0.77 (0.67 to 0.87)	0.84 (0.74 to 0.94)

Data in parentheses are 95% confidence intervals. Noninfection, negative + systemic inflammatory response syndrome (SIRS); infection, sepsis + severe sepsis + septic shock.