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PLoS One. 2010 Nov 15;5(11):e14000. doi: 10.1371/journal.pone.0014000.

BMI, all-cause and cause-specific mortality in Chinese Singaporean men and women: the Singapore Chinese health study.

Author information

1
Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota, United States of America. odeg0025@umn.edu

Abstract

BACKGROUND:

The optimal range of relative weight for morbidity and mortality in Asian populations is an important question in need of more thorough investigation, especially as obesity rates increase. We aimed to examine the association between body mass index (BMI), all cause and cause-specific mortality to determine the optimal range of BMI in relation to mortality in Chinese men and women in Singapore.

METHODOLOGY/PRINCIPAL FINDINGS:

We analyzed data from a prospective cohort study of 51,251 middle-aged or older (45-74) Chinese men and women in the Singapore Chinese Health Study. Participants were enrolled and data on body weight and covariates were collected in 1993-1998 and participants were followed through 2008. The analysis accounted for potential methodological issues through stratification on smoking and age, thorough adjustment of demographic and lifestyle confounders and exclusion of deaths early in the follow-up.

CONCLUSIONS/SIGNIFICANCE:

Increased risk of mortality was apparent in underweight (<18.5) and obese BMI categories (≥27.5) independent of age and smoking. Regardless of age or BMI, smoking considerably increased the rate of mortality and modified the association between BMI and mortality. The most favorable range of BMI for mortality rates and risk in non-smoking persons below age 65 was 18.5-21.4 kg/m(2), and for non-smoking persons aged 65 and above was 21.5-24.4 kg/m(2).

PMID:
21085577
PMCID:
PMC2981556
DOI:
10.1371/journal.pone.0014000
[Indexed for MEDLINE]
Free PMC Article

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