Table 2.

Origins of PE in RHWU cohort and WUH cohort.

Disease type	RHWU cohort (N = 726)	WUH cohort (N = 172)
MPE
Lung cancer	261 (35.95%)	51 (29.65%)
Breast cancer	12 (1.65%)	2 (1.16%)
Lymphoma	18 (2.48%)	1 (0.58%)
Mesothelioma	4 (0.55%)	1 (0.58%)
Ovary cancer	6 (0.83%)	0 (0%)
Other cancers	34 (4.68%)	4 (2.33%)
BPE
Tuberculous pleurisy	186 (25.62%)	56 (32.56%)
parapneumonic effusions	151 (20.80%)	35 (20.35%)
Heart failure	30 (4.13%)	7 (4.07%)
Pulmonary embolism	1 (0.14%)	0 (0%)
Empyema	12 (1.65%)	5 (2.91%)
Other benign diseases	11 (1.52%)	10 (5.81%)