Waist circumference for the screening of the metabolic syndrome in children


Luis A Moreno, E.U. Ciencias de la Salud, Universidad de Zaragoza, C/Domingo Miral s/n, ES-50009 Zaragoza, Spain (Fax. +34 76 761 752, e-mail. lmoreno@posta.unizar.es)


Aim: To identify the best anthropometric predictor of the metabolic syndrome in children. Methods: Screening performance was evaluated in a clinical setting. The study included 140 children: 72 non-obese and 68 with non-syndromal obesity. Body mass index (BMI), waist circumference and triceps/subscapular skinfolds ratio were used as predictor variables, and systolic blood pressure, diastolic blood pressure, glucose, uric acid, fasting insulin, triglycerides and HDL-C as metabolic syndrome variables. Results: The areas under the receiver operating characteristic (ROC) curves were 0.849 (95% CI: 0.780,0.919) for BMI, 0.868 (95% CI: 0.801,0.934) for waist circumference and 0.834 (95% CI: 0.757,0.910) for the triceps/subscapular skinfolds ratio. No statistically significant differences were found for the three areas under the ROC curves. The point on the ROC curve closest to 1 corresponded to the 65th percentile for BMI, to the 70th percentile for waist, and to the 40th percentile for the triceps/subscapular skinfolds ratio.

Conclusion: Waist circumference seems to be the best predictor of children with the metabolic syndrome in paediatric clinical settings.