Cutoff Sensitivity Specificity PPV (%) NPV (%) Accuracy (%)
IS            
WC (cm) 94.0 0.641 0.753 86.6 43.4 67.1
BMI (kg/m2) 26.8 0.579 0.779 86.6 40.3 63.3
WHtR 0.540 0.756 0.637 83.3 61.0 76.8
BF% 24.0 0.718 0.688 85.2 46.4 70.3
IR            
WC (cm) 99.5 0.641 0.734 40.6 87.6 71.0
BMI (kg/m2) 27.3 0.781 0.658 39.4 91.2 68.2
WHtR 0.580 0.672 0.676 34.8 88.3 63.6
BF% 27.0 0.734 0.685 39.5 89.8 68.9
Cutoff-values were calculated using the Younden Index = Sensitivity + Specificity -1. Abbreviations: PPV: Positive Predictive Value; NPV: Negative Predictive Value; IS: Insulin Sensitivity; IR: Insulin Resistance; WC: Waist Circumference; BMI: Body-Mass Index; WHtR: Waist-to-Height ratio; BF%: Body Fat percent.
Table 4: Proposed Cutoff values for Anthropometric Indices to determine IS & IR in Males From Central Mexico.