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Revista chilena de pediatría

Print version ISSN 0370-4106

Abstract

VALLE-LEAL, Jaime; ABUNDIS-CASTRO, Leticia; HERNANDEZ-ESCARENO, Juan  and  FLORES-RUBIO, Salvador. Waist-to-height ratio is an indicator of metabolic risk in children. Rev. chil. pediatr. [online]. 2016, vol.87, n.3, pp.180-185. ISSN 0370-4106.  http://dx.doi.org/10.1016/j.rchipe.2015.10.011.

Introduction Abdominal fat, particularly visceral, is associated with a high risk of metabolic complications. The waist-height ratio (WHtR) is used to assess abdominal fat in individuals of all ages. Objective To determine the ability of the waist-to-height ratio to detect metabolic risk in mexican schoolchildren. Patients and Method A study was conducted on children between 6 and 12 years. Obesity was diagnosed as a body mass index (BMI) ≥ 85th percentile, and an ICE ≥0.5 was considered abdominal obesity. Blood levels of glucose, cholesterol and triglycerides were measured. The sensitivity, specificity, positive predictive and negative value, area under curve, the positive likelihood ratio and negative likelihood ratio of the WHtR and BMI were calculated in order to identify metabolic alterations. WHtR and BMI were compared to determine which had the best diagnostic efficiency. Results Of the 223 children included in the study, 51 had hypertriglyceridaemia, 27 with hypercholesterolaemia, and 9 with hyperglycaemia. On comparing the diagnostic efficiency of WHtR with that of BMI, there was a sensitivity of 100% vs. 56% for hyperglycaemia, 93 vs. 70% for cholesterol, and 76 vs. 59% for hypertriglyceridaemia. The specificity, negative predictive value, positive predictive value, positive likelihood ratio, negative likelihood ratio, and area under curve were also higher for WHtR. Conclusions The WHtR is a more efficient indicator than BMI in identifying metabolic risk in mexican school-age.

Keywords : Metabolic risk; Waist-to-height ratio; Abdominal obesity; Childhood obesity.

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