Comparison of the derived biomarker thresholds. The threshold values for the 6 biomarkers derived using 4 datasets are shown. All thresholds were derived using the highest value in the nontumorigenic group. Numbers above the bars indicate the number of outliers removed from the derivation of the thresholds. Abbreviations: AhR, aryl hydrocarbon receptor; CAR, constitutive activated receptor; ER, estrogen receptor; PPARα, peroxisome proliferator-activated receptor α.