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Table 2 Sensitivity, specificity and Youden’s index using sex-specific cut-off points for WC to detect diabetes

From: Identifying obesity indicators which best correlate with type 2 diabetes in a Chinese population

Men
WC(cm) Sensitivity Specificity Youden’s index
84 0.861 0.337 0.198
86 0.815 0.414 0.229
88 0.778 0.495 0.273
90 0.722 0.571 0.293
92 0.639 0.650 0.289
94 0.556 0.727 0.283
Women
WC(cm) Sensitivity Specificity Youden’s index
80 0.875 0.384 0.259
82 0.821 0.461 0.283
84 0.777 0.543 0.320
86 0.714 0.616 0.330
88 0.625 0.682 0.307
90 0.580 0.710 0.290
  1. The optimal cut-off point for women using the Youden’ s index is a WC of 86 cm. For men it is a WC of 90 cm. WC waist circumference.