Tracking of BMI in Japanese children from 6 to 18 years of age: Reference values for annual BMI incremental change and proposal for size of increment indicative of risk for obesity

Annals of Human Biology
Mikako InokuchiTomonobu Hasegawa

Abstract

A large incremental increase in BMI indicates excess fat deposition in most children, but the reference values for identifying those at risk for developing obesity have not been defined. To determine the mean and SD of annual incremental change (ΔSDS) in BMI for Japanese school children. A cohort of 669 Japanese children in one private school in Tokyo in whom height and weight were measured annually between 6-17 years of age. Each child's BMI was converted to SDS as based on the 1978-1981 Japanese references for the 12 annual measurements to derive the correlation coefficient, r, between two successive measurements. Using the formula, SD of ΔSDS = √2(1-r), the mean and SD of ΔSDS were obtained. Excess BMI gain was defined in terms of ΔSDS in Japanese children. Annual incremental increase greater than 2 SD of ΔSDS, equivalent to 1-2 BMI units/year for younger children and 2-3 BMI units/year for older children, respectively, indicates rapid increase in body fat in Japanese children. Based on analysis of incremental change in BMI in this cohort, a cut-off has been identified that can be used to identify children at risk for developing obesity.

References

Jan 1, 1997·Archives of Disease in Childhood·T J Cole
Jul 7, 1999·The American Journal of Clinical Nutrition·S S Guo, W C Chumlea
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Jul 2, 2003·International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity·R M FuentesA Nissinen
Oct 17, 2007·Acta Paediatrica·Mikako InokuchiTomonobu Hasegawa

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Citations

Feb 11, 2016·Annals of Human Biology·Bente BrannsetherPétur Benedikt Júlíusson
Oct 22, 2011·Annals of Human Biology·Mikako InokuchiTomonobu Hasegawa
Jun 12, 2018·Obesity·David S FreedmanGerald S Berenson
Oct 28, 2014·Annals of Pediatric Endocrinology & Metabolism·Toshihiro TajimaKatsura Ishizu
Jun 28, 2017·American Journal of Reproductive Immunology : AJRI·Terence T LaoDaljit S Sahota
Jan 27, 2018·Clinical Chemistry and Laboratory Medicine : CCLM·Giuseppe LippiUNKNOWN European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) Working Group for Preanalytical Phase (WG-PRE)
Dec 26, 2018·Journal of Medical Biochemistry·Neda MilinkovićNada Majkić-Singh
Aug 8, 2018·Laboratory Medicine·Osman EvliyaogluRalf Weiskirchen
Feb 6, 2017·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Hironori TanabeTomoyuki Saito
Nov 17, 2020·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Lauren CovingtonMaureen M Black

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