(a) Waist circumference as predictor of pre-diabetes in adolescent boys.
ROC analysis for waist circumference showed that it was a good predictor of prediabetes for boys −area under the ROC curve 0.804. The cut-off for waist circumference for predicting prediabetes was estimated as ≥82.5 cm for boys.
(b) Waist circumference as predictor of pre-diabetes in adolescent girls.
ROC analysis for waist circumference showed that it was a good predictor of prediabetes for girls − area under the ROC curve 0.795.The cut-off for waist circumference for predicting prediabetes was estimated as ≥80.3 cm for girls.