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Table 2 Youden index and the cut-off value of continuous data

From: A scoring model for diagnosis of tuberculous pleural effusion

 

Youden index

Cut-off value

Age

0.443

46.5

ESR

0.23

27.5

CRP

0.457

52.8

L%

0.264

91.5

ADA

0.856

24.5

  1. ESR Erythrocyte sedimentation rate, CRP C-reactive protein, L% Lymphocyte ratio, ADA Adenosine deaminase