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Paper Abstract and Keywords
Presentation 2023-11-27 13:00
Allometric Multiscaling Analysis of Weight and Height Data in Children and Adolescents -- Limitations of Body Mass Index --
Ken Kiyono (Osaka Univ.) MBE2023-25
Abstract (in Japanese) (See Japanese page) 
(in English) The Body Mass Index (BMI) has been widely used to assess thinness and obesity in all age groups, including children and adolescents. However, in recent years, the limitations of BMI have been pointed out. This study discusses the mathematical conditions that BMI should satisfy from the viewpoint of general population statistics. We claim here that height-adjusted indices such as BMI should satisfy allometric uni-scaling, which means that all quantile curves in the weight-height distribution have the same scaling index. In contrast, when the scaling index varies with the position of the centile curve, it is called allometric multiscaling. We analyzed the height and weight database obtained from the Japanese School Health Statistics Survey and found significant multiple scaling characteristics in the 5-13 age group for males and the 5-11 age group for females. Those findings mean that BMI cannot be used to assess thinness or obesity at these ages adequately.
Keyword (in Japanese) (See Japanese page) 
(in English) Body Mass Index / Allometric scaling / Power law / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 284, MBE2023-25, pp. 1-3, Nov. 2023.
Paper # MBE2023-25 
Date of Issue 2023-11-20 (MBE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MBE2023-25

Conference Information
Committee NC MBE  
Conference Date 2023-11-27 - 2023-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kindai Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Brain Architecture, NC, ME 
Paper Information
Registration To MBE 
Conference Code 2023-11-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Allometric Multiscaling Analysis of Weight and Height Data in Children and Adolescents 
Sub Title (in English) Limitations of Body Mass Index 
Keyword(1) Body Mass Index  
Keyword(2) Allometric scaling  
Keyword(3) Power law  
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1st Author's Name Ken Kiyono  
1st Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2023-11-27 13:00:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2023-25 
Volume (vol) vol.123 
Number (no) no.284 
Page pp.1-3 
#Pages 3 
Date of Issue 2023-11-20 (MBE) 

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