Fig. 2

Diagnostic accuracy of ADA, IFN-γ and IL-27 for TPE according to different ages in the Wuhan Cohort. A cutoff point of 21.4 U/L for ADA to discriminate TPE from non-TPE (a). ROC curves show the diagnostic value of ADA in young patients (b) and in older patients (c). A cutoff point of 116.1 ng/L for IFN-γ to discriminate TPE from non-TPE (d). ROC curves show the diagnostic value of pleural IFN-γ in young patients (e) and in older patients (f). A cutoff point of 591.4 ng/L for IL-27 to discriminate TPE from non-TPE (g). ROC curves show the diagnostic value of pleural IL-27 in young patients (h) and in older patients (i). ADA, adenosine deaminase; IFN, interferon; IL, interleukin; ROC, receiver operating characteristic; TPE, tuberculous pleural effusion