Table 2.

Levels of presepsin, CRP, and PCT in the pleural fluid and blood (n = 105)

	Empyema (n = 11)	Parapneumonic (n = 16)	Tuberculous (n = 9)	Malignant (n = 46)	Paramalignant (n = 13)	Transudates (n = 10)
Presepsin (pg/mL)
PF	1496 ± 971	854 (682, 1423)	548 ± 188	463 (347, 609)	438 (319, 812)	531 ± 172
Blood	776 ± 362	395 (251, 851)	392 ± 183	258 (162, 318)	259 (200, 322)	402 ± 144
p-value	0.0139	0.0330	0.0019	< 0.0001	0.0111	0.0125
CRP (mg/dL)
PF	5.57 ± 4.40	3.67 (2.28, 7.59)	3.29 ± 2.22	0.55 (0.21, 1.48)	0.90 (0.53, 2.46)	0.41 ± 0.43
Blood	19.11 ± 9.88	8.04 (2.97, 19.35)	8.06 ± 6.18	1.62 (0.49, 5.80)	3.12 (1.37, 10.66)	1.00 (0.25, 2.18)
p-value	0.0001	0.0114	0.0047	< 0.0001	0.0069	0.0130
PCT (ng/mL)
PF	0.30 (0.11, 0.77)	0.28 (0.07, 2.72)	0.08 ± 0.06	0.05 (0.03, 0.10)	0.10 (0.04, 0.50)	0.12 ± 0.08
Blood	1.43 (0.25, 3.26)	0.30 (0.13, 2.13)	0.08 ± 0.05	0.06 (0.03, 0.12)	0.06 (0.04, 0.23)	0.12 ± 0.10
p-value	0.0272	ns	ns	ns	ns	ns

Data are presented as the mean ± SD for normally distributed data or median (interquartile ranges) for skewed data. PF: pleural fluid