Table 2. Determination of the optimal cutoffs values and AUC for BMI, BAI and WC in Amerindian and General population.

Population	Antropometric index	Cutoffs	Sensitivity	Specificity	PPV	NPV	AUC (95%CI)	p value
Amerindian
	Men
	BMI	29.26	0.57	0.11	0.87	0.11	0.68 (0.42–0.94)	0.110
	BAI	25.15	0.86	0.24	0.74	0.27	0.84 (0.66–1.00)	0.002
	WC	96.60	0.57	0.08	0.90	0.08	0.78 (0.59–0.97)	0.010
	Women
	BMI	25.32	0.89	0.51	0.48	0.62	0.68 (0.55–0.80)	0.070
	BAI	34.70	0.67	0.23	0.75	0.24	0.77 (0.63–0.92)	0.005
	WC	85.65	0.89	0.43	0.56	0.52	0.74 (0.63–0.86)	0.010
General
	Men
	BMI	28.33	0.51	0.22	0.73	0.24	0.70 (0.63–0.77)	<0.001
	BAI	28.75	0.51	0.19	0.76	0.20	0.69 (0.60–0.77)	<0.001
	WC	94.15	0.55	0.28	0.67	0.31	0.71 (0.63–0.78)	<0.001
	Women
	BMI	30.18	0.62	0.18	0.76	0.20	0.75 (0.68–0.81)	<0.001
	BAI	36.65	0.51	0.19	0.75	0.19	0.68 (0.60–0.75)	<0.001
	WC	89.75	0.74	0.26	0.69	0.31	0.79 (0.74–0.85)*	<0.001

T2DM, type 2 diabetes mellitus; BMI, body mass index; BAI, body adiposity index; WC, waist circumference; AUC, area under the ROC curve; CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value.

*WC vs BAI, p = 0.02.