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The receiver operator characteristic (ROC) curve for the VIAVC best subset of features corresponding to the metabolites provided in Table 3. The model graphs the true positive rate on the y-axis vs. the false-positive rate on the x-axis. The corresponding area under the curve (AUC) was 0.887 with a 95% confidence interval of 0.731–0.997, and the model had a predictive accuracy of 81.6%.
