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Table 3 Cut-off points and other parameters of WC, PBF and BMI in diagnosis of PCOS

From: Application of receiver operating characteristic curve in the assessment of the value of body mass index, waist circumference and percentage of body fat in the Diagnosis of Polycystic Ovary Syndrome in childbearing women

Age (y/o) Obesity parameter Cut-off point Sensitivity (%) Specificity (%) Youden index NPV (%) PPV (%)
<26 WC (cm) 93.5 56.5 100 0.565 69.7 100
PBF (%) 28.3 91.3 64.2 0.555 88.1 71.8
BMI (kg/m2) 26.6 56.5 100 0.565 69.7 100
26–31 WC (cm) 80.5 69.1 84.5 0.536 73.2 81.7
PBF (%) 29.9 85.5 60.9 0.464 80.8 68.6
BMI (kg/m2) 26.5 45.5 98.9 0.444 64.5 97.6
>31 WC (cm) 81.0 81.3 93.2 0.745 83.3 92.3
PBF (%) 33.0 71.9 83.6 0.555 74.8 81.4
BMI (kg/m2) 26.6 68.8 94.5 0.633 75.2 92.6
Total WC (cm) 80.5 73.6 85.0 0.586 76.3 83.1
PBF (%) 29.0 88.2 57.7 0.459 83.0 67.6
BMI (kg/m2) 26.6 54.5 98.0 0.525 68.3 96.5