eprintid: 1571619
rev_number: 32
eprint_status: archive
userid: 608
dir: disk0/01/57/16/19
datestamp: 2017-08-27 04:50:50
lastmod: 2021-12-13 03:03:13
status_changed: 2017-08-30 12:17:01
type: article
metadata_visibility: show
creators_name: Cole, TJ
creators_name: Mori, H
title: Fifty years of child height and weight in Japan and South Korea: Contrasting secular trend patterns analyzed by SITAR
ispublished: pub
divisions: UCL
divisions: B02
divisions: D13
divisions: G25
note: © 2017 The Authors. American Journal of Human Biology Published by Wiley Periodicals, Inc.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
abstract: OBJECTIVES: Japanese and South Koreans have traditionally been shorter than Europeans, but have recently become appreciably taller. The aim was to quantify the secular trend patterns in height and weight growth in the two countries over 50 years using the SITAR growth curve model. METHODS: Data on mean height and weight by sex in 1-year age groups from 1 to 20 years were obtained by decade in South Korea (1965-2005) and Japan (1950-2010). The data were analyzed using SITAR (SuperImposition by Translation And Rotation), which estimates a mean curve and three adjustments-size, timing and intensity-reflecting how the individual surveys differ from the mean. A sensitivity analysis compared results for the Japanese data based on cohort as well as period. RESULTS: Growth patterns in the two countries changed dramatically over the study period, affecting not only height and weight but also developmental age, in that the growth period advanced in timing and shrank in duration. SITAR fitted the data well. The trends were larger in South Korea than Japan, and puberty timing in Japan stabilized by 1970. Most of the height increment seen in adults had already accrued by age 1.5 years, whereas the adult weight increment accrued throughout childhood. CONCLUSIONS: The secular height trend in these countries represents increased growth in the long bones during infancy, so it can be viewed as the inverse of stunting. There are striking country differences in growth pattern, but they are not easily explained by differences in national income, diet or lifestyle.
date: 2018-01
date_type: published
official_url: http://doi.org/10.1002/ajhb.23054
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
article_type_text: Journal Article
verified: verified_manual
elements_id: 1414809
doi: 10.1002/ajhb.23054
lyricists_name: Cole, Timothy
lyricists_id: TCOLE39
actors_name: Cole, Timothy
actors_name: Laslett, David
actors_id: TCOLE39
actors_id: DLASL34
actors_role: owner
actors_role: impersonator
full_text_status: public
publication: American Journal of Human Biology
volume: 30
number: 1
article_number: e23054
event_location: United States
issn: 1520-6300
citation:        Cole, TJ;    Mori, H;      (2018)    Fifty years of child height and weight in Japan and South Korea: Contrasting secular trend patterns analyzed by SITAR.                   American Journal of Human Biology , 30  (1)    , Article e23054.  10.1002/ajhb.23054 <https://doi.org/10.1002/ajhb.23054>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1571619/1/Cole_et_al-2017-American_Journal_of_Human_Biology.pdf