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Cardiovascular risk factors in overweight and obese Chinese children: a comparison of weight-for-height index and BMI as the screening criterion.

Abstract：

BACKGROUND:Childhood obesity is a widespread and growing problem in the world. Body mass index (BMI) and weight-for-height criterion have been used to determine childhood obesity. No data was available to evaluate cardiovascular risk factors in overweight and obese Chinese children screened by weight-for-height index and Chinese newly developed BMI criterion. AIM OF THE STUDY:To evaluate cardiovascular risk factors in overweight and obese Chinese children by using Chinese BMI and weight-for-height index as screening criterion. METHODS:A total of 215 children aged 7.5-13 years were recruited from 3 primary schools in Guangzhou, PR China. Measurements included body weight, height, waist and hip circumference, fasting serum glucose, insulin, total triglyceride (TG), total cholesterol (TC), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), apolipoprotein A (apo A), apolipoprotein B (apo B). Chinese BMI and weight-for- height criterion were used to classify overweight and obesity. RESULTS:According to Chinese BMI criterion, 65 from 108 obese children originally identified by weight-for-height were reclassified as obese and other 41 children were classified as overweight. Compared with non-obese children, obese children screened by Chinese BMI and weight-for-height index had increased levels of TG, LDL-C, apo B, insulin; decreased levels of HDL-C, apo A; and significantly higher prevalence of hypertriglyceridemia and high LDL-C. Children identified as overweight by Chinese BMI criterion had also shown high TG, LDL-C, apo B, insulin levels, low HDL-C, apo A levels, and significantly higher prevalence of hypertriglyceridemia than the normal weight children. CONCLUSIONS:Our study reveals that overweight and/or obesity screened by both Chinese new BMI and weight-for-height criterion are associated with increased levels of cardiovascular risk factors (e.g., elevated serum TG, LDL, apo B, and reduced HDL-C, apo A levels). Using Chinese BMI criterion may underestimate the prevalence of childhood obesity but it could be adopted as a unique tool for screening children's overweight in population-based screening programs.

journal_name

Eur J Nutr

journal_title

European journal of nutrition

authors

Zhang CX,Tse LA,Deng XQ,Jiang ZQ

doi

10.1007/s00394-008-0718-7

subject

Has Abstract

pub_date

2008-08-01 00:00:00

pages

244-50

issue

eissn

1436-6207

issn

1436-6215

journal_volume

pub_type

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Cardiovascular risk factors in overweight and obese Chinese children: a comparison of weight-for-height index and BMI as the screening criterion.