Development of a novel score for the diagnosis of bacterial infection in patients with acute-on-chronic liver failure

Table 2 Procalcitonin levels in relation to different infection sites

	PCT (ng/mL)	CRP (mg/L)	WBC (× 109/L)	N%
Overall (n = 169)	1.46 ± 1.81	25.59 ± 17.50	9.01 ± 5.62	73.03 ± 11.56
Pneumonia (n = 94)	1.35 ± 1.77	25.26 ± 17.80	8.87 ± 5.98	71.77 ± 11.23
SBP (n = 23)	1.29 ± 0.83	18.55 ± 9.19	8.46 ± 3.88	72.05 ± 14.06
Pneumonia and SBP (n = 21)	2.30 ± 2.83	37.71 ± 24.00	11.30 ± 6.72	77.26 ± 13.85
Infection without identified source (n = 13)	2.12 ± 2.04	29.26 ± 11.98	9.35 ± 4.81	75.57 ± 10.87
Biliary tract (n = 12)	0.59 ± 0.37	14.61 ± 8.12	7.92 ± 4.66	73.42 ± 10.25
Urinary (n = 10)	0.74 ± 0.54	19.72 ± 5.90	5.38 ± 2.43	67.43 ± 9.25
Bloodstream (n = 3)	1.02 ± 0.42	32.65 ± 17.90	8.21 ± 1.13	74.67 ± 5.80
P value	0.084	0.001	0.203	0.406

SBP: Spontaneous bacterial peritonitis; PCT: Procalcitonin; CRP: C-reactive protein; WBC: White blood cell count; N%: Proportion of neutrophils.