BMI and all-cause mortality among middle-aged and older adults in Taiwan: a population-based cohort study.
Public Health Nutr
; 18(10): 1839-46, 2015 Jul.
Article
em En
| MEDLINE
| ID: mdl-25482035
ABSTRACT
OBJECTIVE:
The present study investigates the relationship between BMI and all-cause mortality among middle-aged and older adults with or without pre-existing diseases.DESIGN:
A population-based cohort study.SETTING:
The Taiwan Longitudinal Study on Aging is a nationwide prospective cohort study comprising a representative random sample of middle-aged and older adults. The study period was 1996-2007.SUBJECTS:
We followed 4145 middle-aged and older adults, totalling 42,353 person-years.RESULTS:
Overweight and mildly obese participants showed a 16% and 30% decrease in the risk of death, respectively, compared with those of normal weight after adjusting for potential covariates (e.g. demographic characteristics, health behaviour, co-morbidities and physical function). Underweight adults showed a 1.36-fold increased adjusted hazard ratio of death compared with normal-weight adults. Adults with a BMI of 27.0-28.0 kg/m(2) showed a significantly lower adjusted hazard ratio of all-cause mortality rate compared with adults who had normal BMI values when they had coexisting hypertension or diabetes (adjusted hazard ratio = 0.50; 95% CI 0.30, 0.81 for hypertension and adjusted hazard ratio=0.41; 95% CI 0.18, 0.89 for diabetes).CONCLUSIONS:
The study demonstrates that underweight people have a higher risk of death, and overweight and mildly obese people have a lower risk of death, compared with people of normal weight among middle-aged and older adults. An optimal BMI may be based on the individual, who exhibits pre-existing diseases or not.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Magreza
/
Índice de Massa Corporal
/
Causas de Morte
/
Obesidade
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
Asia
Idioma:
En
Revista:
Public Health Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
/
SAUDE PUBLICA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Taiwan