Body mass index and survival in older men and women aged 70 to 75 years

Flicker, Leon, McCaul, Kieran A., Hankey, Graeme J., Jamrozik, Konrad, Brown, Wendy J., Byles, Julie E. and Almeida, Osvaldo P. (2010) Body mass index and survival in older men and women aged 70 to 75 years. Journal of the American Geriatrics Society, 58 2: 234-241. doi:10.1111/j.1532-5415.2009.02677.x


Author Flicker, Leon
McCaul, Kieran A.
Hankey, Graeme J.
Jamrozik, Konrad
Brown, Wendy J.
Byles, Julie E.
Almeida, Osvaldo P.
Title Body mass index and survival in older men and women aged 70 to 75 years
Journal name Journal of the American Geriatrics Society   Check publisher's open access policy
ISSN 0002-8614
1532-5415
Publication date 2010-02-01
Year available 2010
Sub-type Article (original research)
DOI 10.1111/j.1532-5415.2009.02677.x
Open Access Status DOI
Volume 58
Issue 2
Start page 234
End page 241
Total pages 8
Place of publication Hoboken, NJ, U.S.A.
Publisher Wiley-Blackwell Publishing, Inc.
Language eng
Formatted abstract
OBJECTIVES: To examine in an older population all-cause and cause-specific mortality associated with underweight (body mass index (BMI)<18.5), normal weight (BMI 18.5–24.9), overweight (BMI 25.0–29.9), and obesity (BMI≥30.0).

DESIGN: Cohort study.

SETTING: The Health in Men Study and the Australian Longitudinal Study of Women's Health.

PARTICIPANTS: Adults aged 70 to 75, 4,677 men and 4,563 women recruited in 1996 and followed for up to 10 years.

MEASUREMENTS: Relative risk of all-cause mortality and cause-specific (cardiovascular disease, cancer, and chronic respiratory disease) mortality.

RESULTS: Mortality risk was lowest for overweight participants. The risk of death for overweight participants was 13% less than for normal-weight participants (hazard ratio (HR)=0.87, 95% CI=0.78–0.94). The risk of death was similar for obese and normal-weight participants (HR=0.98, 95% CI=0.85–1.11). Being sedentary doubled the mortality risk for women across all levels of BMI (HR=2.08, 95% CI=1.79–2.41) but resulted in only a 28% greater risk for men (HR=1.28 (95% CI=1.14–1.44).

CONCLUSION: These results lend further credence to claims that the BMI thresholds for overweight and obese are overly restrictive for older people. Overweight older people are not at greater mortality risk than those who are normal weight. Being sedentary was associated with a greater risk of mortality in women than in men.

Copyright © 1999-2010 John Wiley & Sons, Inc.
Keyword Body mass index
Mortality
Risk
Sedentary
Older
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented at the 19th IAGG World Congress of Gerontology and Geriatrics, Paris, France, July 2009.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Human Movement and Nutrition Sciences Publications
 
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Created: Mon, 10 Jan 2011, 19:19:37 EST by Matthew Lamb on behalf of School of Human Movement and Nutrition Sciences