Fig. 2From: Identifying tuberculous pleural effusion using artificial intelligence machine learning algorithmsSensitivity, specificity, accuracy, PPV, NPV curves for pfADA and the four algorithmic models. PPV: positive predictive value; NPV: negative predictive value; pfADA: pleural fluid adenosine deaminase; Logistic: logistic regression; KNN: k-nearest neighbor; SVM: support vector machine; RF: random forestBack to article page