Table 4.

ROC analysis of the predictive value of BMI, TyG index, TyG-BMI on changes in glucose status during follow-up of prediabetes subjects

	AUC	95%CI low	95%CI upp	Best threshold	Specificity	Sensitivity
Prediabetes to NFG
BMI*	0.59	0.59	0.60	23.81	0.66	0.48
TyG index*	0.60	0.59	0.61	8.68	0.66	0.50
TyG-BMI	0.61	0.61	0.62	214.68	0.61	0.55
Prediabetes to Diabetes
BMI*	0.60	0.60	0.62	24.82	0.55	0.62
TyG index*	0.60	0.60	0.62	8.79	0.51	0.65
TyG-BMI	0.63	0.62	0.64	220.27	0.55	0.64

AUC area under the curve, other abbreviations as in Table 1

^*P < 0.001, compare with TyG-BMI