TABLE 1.

Statistical parameters of VOC sensors

Statistical parameters	HFHS rat model (considering BHT is not a biomarker)	HFHS rat model (considering BHT is a biomarker)
Sensitivity	100%	100%
Specificity	100%	86%
Accuracy	100%	88%

Notes: Sensitivity = TP/(TP + FN).

Accuracy = (TP + TN)/(TP + TN + FP + FN).

TP = 33, TN = 9, FN = 0, FP = 0.

Abbreviations: BHT, butylated hydroxytoluene; FN, false negative; FP, false positive; HFHS, high‐fat/high‐sugar; TN, true negative; TP, true positive; VOC, volatile organic compound.