Table 1.

Characteristics of 169 patients with pleural disease according to benign and malignant pleural effusion.

Diagnosis	SMRP (nmol/l) Median (IQR)	CYFRA 21-1 (ng/l) Median (IQR)	CEA (ng/l) Median (IQR)	Cytology (% of positivity)
MPM	24.2 (8.8-55.0)	226.6 (117.6-732.2)	0.9 (0.5-1.5)	32.7
MTX	4.6 (2.6-10.0)	120.9 (41.7-446.7)	8.5 (1.4-72.8)	50.0
BD	2.8 (1.0-7.5)	23.1 (7.8-48.8)	1.1 (0.5-1.7)	1.8

MPM = Malignant Pleural Mesothelioma; MTX = Metastasis; BD = Benign Disease (pleurisis); IQR = Interquartile Range.