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Article: Waist circumference and body mass index in Chinese children: Cutoff values for predicting cardiovascular risk factors

TitleWaist circumference and body mass index in Chinese children: Cutoff values for predicting cardiovascular risk factors
Authors
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/
Citation
International Journal Of Obesity, 2007, v. 31 n. 3, p. 550-558 How to Cite?
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.
Persistent Identifierhttp://hdl.handle.net/10722/87845
ISSN
2014 Impact Factor: 5.004
2014 SCImago Journal Rankings: 2.211
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSung, RYTen_HK
dc.contributor.authorYu, CCWen_HK
dc.contributor.authorChoi, KCen_HK
dc.contributor.authorMcManus, Aen_HK
dc.contributor.authorLi, AMCen_HK
dc.contributor.authorXu, SLYen_HK
dc.contributor.authorChan, Den_HK
dc.contributor.authorLo, AFCen_HK
dc.contributor.authorChan, JCNen_HK
dc.contributor.authorFok, TFen_HK
dc.date.accessioned2010-09-06T09:35:14Z-
dc.date.available2010-09-06T09:35:14Z-
dc.date.issued2007en_HK
dc.identifier.citationInternational Journal Of Obesity, 2007, v. 31 n. 3, p. 550-558en_HK
dc.identifier.issn0307-0565en_HK
dc.identifier.urihttp://hdl.handle.net/10722/87845-
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.en_HK
dc.languageengen_HK
dc.publisherNature Publishing Group. The Journal's web site is located at http://www.nature.com/ijo/en_HK
dc.relation.ispartofInternational Journal of Obesityen_HK
dc.subjectBMIen_HK
dc.subjectCardiovascular risk factorsen_HK
dc.subjectChildrenen_HK
dc.subjectChineseen_HK
dc.subjectHong Kongen_HK
dc.subjectWaist circumferenceen_HK
dc.titleWaist circumference and body mass index in Chinese children: Cutoff values for predicting cardiovascular risk factorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0307-0565&volume=31 &issue=3&spage=550 &epage= 558&date=2007&atitle=Waist+circumference+and+body+mass+index+in+Chinese+children:+cutoff+values+for+predicting+cardiovascular+risk+factors.en_HK
dc.identifier.emailYu, CCW: yucw@hkucc.hku.hken_HK
dc.identifier.emailMcManus, A: alimac@hku.hken_HK
dc.identifier.authorityYu, CCW=rp00982en_HK
dc.identifier.authorityMcManus, A=rp00936en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1038/sj.ijo.0803452en_HK
dc.identifier.pmid16953258-
dc.identifier.scopuseid_2-s2.0-33847305480en_HK
dc.identifier.hkuros129375en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33847305480&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume31en_HK
dc.identifier.issue3en_HK
dc.identifier.spage550en_HK
dc.identifier.epage558en_HK
dc.identifier.isiWOS:000244480100023-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridSung, RYT=7101684314en_HK
dc.identifier.scopusauthoridYu, CCW=35235958400en_HK
dc.identifier.scopusauthoridChoi, KC=10739412900en_HK
dc.identifier.scopusauthoridMcManus, A=7004635919en_HK
dc.identifier.scopusauthoridLi, AMC=7403291810en_HK
dc.identifier.scopusauthoridXu, SLY=14059131600en_HK
dc.identifier.scopusauthoridChan, D=7402216810en_HK
dc.identifier.scopusauthoridLo, AFC=7102780609en_HK
dc.identifier.scopusauthoridChan, JCN=7403287000en_HK
dc.identifier.scopusauthoridFok, TF=7006455238en_HK
dc.identifier.citeulike828789-

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