Comparison of metabolic syndrome prevalence using six different definitions in overweight pre-pubertal children enrolled in a weight management study
Golley, Rebecca K. , Magarey, Anthea , Steinbeck, Kate S. , Baur, Louise A. , & Daniels, Lynne A. (2006) Comparison of metabolic syndrome prevalence using six different definitions in overweight pre-pubertal children enrolled in a weight management study. International Journal of Obesity, 30(5), pp. 853-860.
Objectives: To assess the implications of variation in Metabolic Syndrome (MS) definition (biochemical and anthropometric indicators) on MS prevalence estimates in a population of overweight and mildly obese children. Design: Cross-sectional study Subjects: Ninety-nine (64 girls) overweight or mildly obese, but otherwise healthy, pre-pubertal 6 to 9 year olds recruited for a randomised controlled trial of weight management Measures: Height, weight and waist circumference were measured with BMI and waist z-scores calculated. Fasting cholesterol and fractions, glucose and insulin were measured, together with systolic and diastolic blood pressure (BP). Anthropometric and metabolic indicators were classified as normal or elevated using adult or child-specific cut points with clustering of MS indicators also assessed using 2 adult and 3 child-specific definitions. Results: Zero to 4% of subjects were classified with MS when adult definitions were applied. This increased to between 39-60% using child-specific definitions, varying according to whether hyperinsulinaemia was central to the MS classification. Systolic BP, triglycerides, total cholesterol, high density lipoprotein cholesterol and waist z-score increased across insulin quartiles (p<0.05). The use of body mass index and waist circumference in the MS definition classified the same subjects.
Conclusions: The classification of MS in children depends strongly on the definition chosen, with MS prevalence estimates higher if insulin is part of the definition and child-specific cut points for metabolic indicators are used. Hyperinsulinaemia and MS are common consequences of childhood obesity but they are not commonly part of the assessment or management plan for weight management in children. There is a need for the establishment of normal insulin ranges and consistent definition of MS in childhood and adolescence.
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|Item Type:||Journal Article|
|Keywords:||lipids, insulin, childhood, obesity, central adiposity, blood pressure, waist circumference, body mass index|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700)|
|Divisions:||Current > Research Centres > Centre for Health Research|
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2006 Nature Publishing Group|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||07 Aug 2007|
|Last Modified:||29 Feb 2012 23:29|
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