Optimal Waist Circumference Cut-Off Point for Multiple Risk Factor Aggregation: Results from the Maracaibo City Metabolic Syndrome Prevalence Study

Table 3

Waist circumference cutpoints for abdominal obesity and BMI according to ethnic groups, Maracaibo, 2014.

	Ethnic groups^*
	Mixed race	Hispanic whites	Afro-Venezuelan	Amerindian
Females
WC cut-offs point (cm)	90.25	90.5	91.5	85.5
AUC (CI 95%)	0.713 (0.676–0.751)	0.679 (0.595–0.762)	0.653 (0.423–0.882)	0.835 (0.704–0.965)
Sensitivity (%)	68	68.1	75	75
Specificity (%)	67.8	54.8	50	74.1
Youden Index	0.36	0.23	0.25	0.49
Distance to ROC	0.454	0.553	0.559	0.359
LR+	2.111	1.507	1.5	2.896
BMI (Kg/m^2)^*	27.6 ± 6.3	28.5 ± 6.4	28.9 ± 5.7	25.9 ± 5.3
Males
WC cut-offs point (cm)	95.15	95.5	91.25	89.5
AUC (CI 95%)	0.737 (0.701–0.773)	0.783 (0.707–0.860)	0.821 (0.665–0.976)	0.729 (0.538–0.920)
Sensitivity (%)	71.1	78.9	81.3	90
Specificity (%)	65.8	67.2	80	70.8
Youden Index	0.37	0.46	0.61	0.61
Distance to ROC	0,448	0.390	0.274	0.309
LR+	2.079	2.405	4.065	3.082
BMI (Kg/m^2)^**	28.9 ± 6.4	29.2 ± 5.6	27.3 ± 7.4	25.6 ± 4.6

Youden Index = Sensitivity + Specificity − 1.
LR+ = (positive likelihood ratio).
BMI = Body Mass Index.
^*One way-ANOVA = 0.076.
^**One way-ANOVA = 0.011: Post Hoc Tukey: mixed race versus Amerindian: = 0.018; Hispanic whites versus Amerindian: = 0.015.