Tired of the confusion around pleural effusions: Adenosine deaminase detection sets the record straight!

Table 1 Basic study information

Item	Content
Study type	Retrospective cohort study
Objective	To evaluate the diagnostic performance of P-ADA as a biomarker for inflammatory pleural diseases
Sample size	157 patients (exudates: 124 cases; transudates: 33 cases)
Key methods	ROC curve analysis to determine optimal P-ADA cutoff; diagnostic parameters evaluated using Youden’s index
Main conclusion	P-ADA ≥ 9.00 U/L demonstrates high diagnostic performance for inflammatory pleural effusions (AUC = 0.81, sensitivity = 77.69%)

AUC: Area under the curve; P-ADA: Pleural adenosine deaminase; ROC: Receiver operating characteristic.