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. 2026 Sep 11;14:1927235. doi: 10.3389/fcell.2026.1927235

TABLE 2.

AUCs for the performance of the microbiome-based predictive models.

Cohort Classifiers AUC Accuracy Sensitivity Specificity PPV NPV F1 score
Training LR 0.915 (0.87–0.961) 0.853 0.784 0.891 0.800 0.882 0.792
RF 0.944 (0.910–0.979) 0.881 0.863 0.891 0.815 0.921 0.838
XGBoost 0.964 (0.937–0.990) 0.916 0.824 0.967 0.933 0.908 0.875
SVM 0.868 (0.810–0.926) 0.804 0.765 0.826 0.709 0.864 0.736
MLP 0.960 (0.931–0.990) 0.895 0.961 0.859 0.790 0.975 0.867
KNN 0.909 (0.931–0.990) 0.860 0.882 0.848 0.763 0.929 0.818
DT 0.776 (0.700–0.852) 0.769 0.725 0.793 0.661 0.839 0.692
LightGBM 0.994 (0.987–1.000) 0.965 0.980 0.957 0.926 0.989 0.952
Test LR 0.742 (0.618–0.865) 0.677 0.56 0.757 0.609 0.718 0.583
RF 0.706 (0.559–0.854) 0.710 0.640 0.757 0.640 0.757 0.640
XGBoost 0.756 (0.626–0.885) 0.742 0.600 0.838 0.714 0.756 0.652
SVM 0.815 (0.710–0.920) 0.710 0.720 0.703 0.621 0.788 0.667
MLP 0.785 (0.669–0.901) 0.694 0.760 0.649 0.594 0.800 0.667
KNN 0.744 (0.619–0.868) 0.645 0.640 0.649 0.552 0.727 0.593
DT 0.549 (0.417–0.680) 0.548 0.400 0.649 0.435 0.615 0.417
LightGBM 0.749 (0.625–0.873) 0.645 0.640 0.649 0.552 0.727 0.593

SVM: support vector machine, LR: logistic regression, RF: random forest, KNN: k-nearest neighbor, AUC: area under the curve, NPV: negative predictive value, PPV: positive predictive value.