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Article: Waist circumference and body mass index in Chinese children: Cutoff values for predicting cardiovascular risk factors
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TitleWaist circumference and body mass index in Chinese children: Cutoff values for predicting cardiovascular risk factors
 
AuthorsSung, RYT2 3
Yu, CCW1
Choi, KC3
McManus, A1
Li, AMC3
Xu, SLY3
Chan, D3
Lo, AFC3
Chan, JCN3
Fok, TF3
 
KeywordsBMI
Cardiovascular risk factors
Children
Chinese
Hong Kong
Waist circumference
 
Issue Date2007
 
PublisherNature Publishing Group. The Journal's web site is located at http://www.nature.com/ijo/
 
CitationInternational Journal Of Obesity, 2007, v. 31 n. 3, p. 550-558 [How to Cite?]
DOI: http://dx.doi.org/10.1038/sj.ijo.0803452
 
AbstractBackground: Body mass index (BMI) and waist circumference (WC) correlate with cardiovascular (CV) risk factors in childhood which track into adulthood. WC provides a measure of central obesity, which has been specifically associated with CV risk factors. Reference standards for WC, and for WC and BMI risk threshold values are not established in Chinese children. Objectives: To construct reference percentile charts of WC, establish relationships between WC, BMI and other risk factors, and propose WC and BMI threshold values predictive of CV risk factors in Hong Kong ethnic Chinese children. Methods: Weight, height, waist and hip circumference were measured in 2593 (52% boys, 47% girls) randomly sampled Hong Kong school children aged 6-12 years. In 958 of these and 97 additional overweight children (n=1055), the relationships between WC, BMI, waist/hip and waist/height ratio and six age-adjusted CV risk factors (>85% percentile levels of blood pressure (BP), fasting triglycerides, low-density lipoprotein (LDL) cholesterol, glucose and insulin levels, and <15% percentile levels of high-density lipoprotein (HDL) cholesterol) were studied. Receiver-operating characteristic analysis was employed to derive optimal age-adjusted sex-specific WC and BMI thresholds for predicting these measures of risk. Results: WC percentiles were constructed. WC correlated slightly more than BMI with CV risk factors and most strongly with insulin and systolic BP, but poorly or not with LDL and glucose. Optimal WC and BMI risk thresholds for predicting four of these six CV risk factors were ca. the 85th percentiles (sensitivities ∼0.8, specificities ∼0.87) with age-specific cutoff values in girls/boys from ∼57/58 to ∼71/76 cm and 17/18 to 22/23 kg/m 2. Conclusion: These are the first set of WC reference data for Chinese children. WC risk cutoff values are proposed which, despite a smaller waist in Chinese children, are similar to those reported for American children. WC percentiles may reflect population risk. © 2007 Nature Publishing Group All rights reserved.
 
ISSN0307-0565
2013 Impact Factor: 5.386
 
DOIhttp://dx.doi.org/10.1038/sj.ijo.0803452
 
ISI Accession Number IDWOS:000244480100023
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorSung, RYT
 
dc.contributor.authorYu, CCW
 
dc.contributor.authorChoi, KC
 
dc.contributor.authorMcManus, A
 
dc.contributor.authorLi, AMC
 
dc.contributor.authorXu, SLY
 
dc.contributor.authorChan, D
 
dc.contributor.authorLo, AFC
 
dc.contributor.authorChan, JCN
 
dc.contributor.authorFok, TF
 
dc.date.accessioned2010-09-06T09:35:14Z
 
dc.date.available2010-09-06T09:35:14Z
 
dc.date.issued2007
 
dc.description.abstractBackground: Body mass index (BMI) and waist circumference (WC) correlate with cardiovascular (CV) risk factors in childhood which track into adulthood. WC provides a measure of central obesity, which has been specifically associated with CV risk factors. Reference standards for WC, and for WC and BMI risk threshold values are not established in Chinese children. Objectives: To construct reference percentile charts of WC, establish relationships between WC, BMI and other risk factors, and propose WC and BMI threshold values predictive of CV risk factors in Hong Kong ethnic Chinese children. Methods: Weight, height, waist and hip circumference were measured in 2593 (52% boys, 47% girls) randomly sampled Hong Kong school children aged 6-12 years. In 958 of these and 97 additional overweight children (n=1055), the relationships between WC, BMI, waist/hip and waist/height ratio and six age-adjusted CV risk factors (>85% percentile levels of blood pressure (BP), fasting triglycerides, low-density lipoprotein (LDL) cholesterol, glucose and insulin levels, and <15% percentile levels of high-density lipoprotein (HDL) cholesterol) were studied. Receiver-operating characteristic analysis was employed to derive optimal age-adjusted sex-specific WC and BMI thresholds for predicting these measures of risk. Results: WC percentiles were constructed. WC correlated slightly more than BMI with CV risk factors and most strongly with insulin and systolic BP, but poorly or not with LDL and glucose. Optimal WC and BMI risk thresholds for predicting four of these six CV risk factors were ca. the 85th percentiles (sensitivities ∼0.8, specificities ∼0.87) with age-specific cutoff values in girls/boys from ∼57/58 to ∼71/76 cm and 17/18 to 22/23 kg/m 2. Conclusion: These are the first set of WC reference data for Chinese children. WC risk cutoff values are proposed which, despite a smaller waist in Chinese children, are similar to those reported for American children. WC percentiles may reflect population risk. © 2007 Nature Publishing Group All rights reserved.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationInternational Journal Of Obesity, 2007, v. 31 n. 3, p. 550-558 [How to Cite?]
DOI: http://dx.doi.org/10.1038/sj.ijo.0803452
 
dc.identifier.citeulike828789
 
dc.identifier.doihttp://dx.doi.org/10.1038/sj.ijo.0803452
 
dc.identifier.epage558
 
dc.identifier.hkuros129375
 
dc.identifier.isiWOS:000244480100023
 
dc.identifier.issn0307-0565
2013 Impact Factor: 5.386
 
dc.identifier.issue3
 
dc.identifier.openurl
 
dc.identifier.pmid16953258
 
dc.identifier.scopuseid_2-s2.0-33847305480
 
dc.identifier.spage550
 
dc.identifier.urihttp://hdl.handle.net/10722/87845
 
dc.identifier.volume31
 
dc.languageeng
 
dc.publisherNature Publishing Group. The Journal's web site is located at http://www.nature.com/ijo/
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofInternational Journal of Obesity
 
dc.relation.referencesReferences in Scopus
 
dc.subjectBMI
 
dc.subjectCardiovascular risk factors
 
dc.subjectChildren
 
dc.subjectChinese
 
dc.subjectHong Kong
 
dc.subjectWaist circumference
 
dc.titleWaist circumference and body mass index in Chinese children: Cutoff values for predicting cardiovascular risk factors
 
dc.typeArticle
 
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<contributor.author>McManus, A</contributor.author>
<contributor.author>Li, AMC</contributor.author>
<contributor.author>Xu, SLY</contributor.author>
<contributor.author>Chan, D</contributor.author>
<contributor.author>Lo, AFC</contributor.author>
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Author Affiliations
  1. The University of Hong Kong
  2. Prince of Wales Hospital Hong Kong
  3. Chinese University of Hong Kong