Predictive Value of Pleural Cytology in the Diagnosis of Complicated Parapneumonic Effusions and Empyema Thoracis

Table 2

Pathology agreement with clinical markers. Values are expressed as mean (SD) for normally distributed variables and mean (interquartile range) for nonnormally distributed variables.

	UPE			CPE/empyema
	Clinical-pathologic agreement; ()	Clinical-pathologic disagreement; ()		Clinical-pathologic agreement ()	Clinical-pathologic disagreement ()
Pleural LDH (U/mL)	327.57 [141, 574]	307.24 [100, 443]	0.73	2039.94 [487, 2947]	3780 [640, 2215]	0.11
Pleural glucose (mg/dL)	89.31 [75, 109]	100.63 [80, 110.5]	0.28	32.79 [1, 43]	56.5 [1, 40]	0.25
Pleural pH	7.49 [7.41, 7.61]	7.47 [7.36, 7.56]	0.58	6.97 [6.82, 7.20]	7.21 [6.90, 7.35]	0.11
Pleural culture positive (%)	—-	—-	—-	69.8 (46.5)	42.9 (51.3)	0.07
Pleural pus (%)	—-	—-	—-	44.2 (7.6)	28.6 (12.1)	0.30