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Are Asians at greater mortality risks for being overweight than Caucasians? Redefining obesity for Asians

Public health nutrition, 2009-04, Vol.12 (4), p.497-506 [Peer Reviewed Journal]

Copyright © The Authors 2008 ;ISSN: 1368-9800 ;ISSN: 1475-2727 ;EISSN: 1475-2727 ;DOI: 10.1017/S1368980008002802 ;PMID: 18547457

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Title:
Are Asians at greater mortality risks for being overweight than Caucasians? Redefining obesity for Asians
Author: Wen, Chi Pang ; David Cheng, Ting Yuan ; Tsai, Shan Pou ; Chan, Hui Ting ; Hsu, Hui Ling ; Hsu, Chih Cheng ; Eriksen, Michael P
Subjects: Adult ; Aged ; Asian Continental Ancestry Group ; Asians ; Body Mass Index ; Cardiovascular Diseases - mortality ; Cohort Studies ; diet-related diseases ; disease prevalence ; European Continental Ancestry Group ; Female ; human diseases ; human nutrition ; Humans ; Male ; Middle Aged ; mortality ; Mortality risk ; Obesity ; Obesity - ethnology ; Obesity - mortality ; Overweight ; Overweight - ethnology ; Prevalence ; Proportional Hazards Models ; reference standards ; Reference Values ; Risk ; risk groups ; Smoking ; Taiwan - epidemiology ; Whites ; World Health Organization ; Young Adult
Is Part Of: Public health nutrition, 2009-04, Vol.12 (4), p.497-506
Description: To assess whether overweight Asians, assessed on the basis of WHO criteria, are at greater mortality risk than overweight Caucasians, and to determine whether alternative cut-off points (BMI = 23.0-24.9 kg/m2 for overweight and BMI >or= 25.0 kg/m2 for obesity) suggested by the WHO Western Pacific Regional Office are appropriate. The cohort was followed prospectively until the end of 2001. All-cause and CVD mortality risks of the overweight and obese group, relative to the reference group (BMI = 18.5-24.9 or 18.5-22.9 kg/m2), were assessed using Cox regression analysis, adjusting for age, smoking and gender. Excess deaths were estimated with a method proposed by the US Centers for Disease Control and Prevention. National Health Interview Survey (NHIS 2001) and a middle-aged perspective cohort in Taiwan. Subjects comprised 36 386 civil servants and school teachers, aged 40 years and older, who underwent a medical examination during 1989-1992. In the WHO-defined overweight group, Asians showed a significant increase in all-cause mortality risk compared with Caucasians. Asians showed risks equivalent to Caucasians' at lower BMI (around 5 units). Every unit of BMI increase, at 25.0 kg/m2 or above, was associated with a 9 % increase in relative mortality risk from all causes. Applying a cut-off point of 25.0 kg/m2 for obesity would result a prevalence of 27.1 %, while the traditional WHO cut-off point of 30.0 kg/m2 yielded obesity prevalence of 4.1 %. Excess deaths due to obesity accounted for 8.6 % of all deaths and 21.1 % of CVD deaths, based on the alternative cut-offs. In this Asian population, significant mortality risks started at BMI >or= 25.0 kg/m2, rather than at BMI >or= 30.0 kg/m2. The study supports the use of BMI >or= 25.0 kg/m2 as a new cut-off point for obesity and BMI = 23.0-24.9 kg/m2 for overweight. The magnitude of obesity-attributable deaths has been hitherto under-appreciated among Asians.
Publisher: Cambridge, UK: Cambridge University Press
Language: English
Identifier: ISSN: 1368-9800
ISSN: 1475-2727
EISSN: 1475-2727
DOI: 10.1017/S1368980008002802
PMID: 18547457
Source: MEDLINE
Alma/SFX Local Collection
ProQuest Central

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Are Asians at greater mortality risks for being overweight than Caucasians? Redefining obesity for Asians

Copyright © The Authors 2008 ;ISSN: 1368-9800 ;ISSN: 1475-2727 ;EISSN: 1475-2727 ;DOI: 10.1017/S1368980008002802 ;PMID: 18547457

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