Diagnostic Accuracy with Total Adenosine Deaminase as a Biomarker for Discriminating Pleural Transudates and Exudates in a Population-Based Cohort Study

Table 1

Prevalence of the causes of pleural effusion syndrome evaluated in 157 patients from March 2015 to December 2019.

Cause	No. of patients	Prevalence (%)
Transudates	33	21.0
Total exudates	124	79.0
Tuberculosis	44	28.0
Adenocarcinoma	37	23.0
Simple parapneumonic effusions	15	9.0
CPPE and empyema	8	5.0
Lymphoma	7	5.0
Squamous cell carcinoma	7	5.0
Other exudates^‡	6	4.0

Abbreviations: CPPE: complicated parapneumonic effusions. Transudates: congestive heart failure (), chronic renal failure (), cirrhosis of the liver with ascites (), and serum low total protein levels (). ^‡Other exudates: pseudo-Meigs’ syndrome (), Dressler’s syndrome (), chylothorax (), and leukemia ().