TY - JOUR
T1 - Body mass index, weight loss, and mortality in community-dwelling older adults
AU - Locher, Julie L.
AU - Roth, David L.
AU - Ritchie, Christine S.
AU - Cox, Kimberly
AU - Sawyer, Patricia
AU - Bodner, Eric V.
AU - Allman, Richard M.
N1 - Funding Information:
ACKNOWLEDGMENTS The original study was funded by Merck Research Laboratories. This study was supported by the Pittsburgh Claude D. Pepper Older Americans Independence Center (P30AG-024827), the Hartford Foundation, and the National Institute on Aging (K07AG023641).
PY - 2007/12
Y1 - 2007/12
N2 - Background. The relationship between body mass index (BMI), weight loss, and mortality in older adults is not entirely clear. The purpose of this article is to evaluate the associations between BMI, weight loss (either intentional or unintentional), and 3-year mortality in a cohort of older adults participating in the University of Alabama at Birmingham (UAB) Study of Aging. Methods. This article reports on 983 community-dwelling older adults who were enrolled in the UAB Study of Aging, a longitudinal observational study of mobility among older African American and white adults. Results. In both raw and adjusted Cox proportional hazards models, unintentional weight loss and underweight BMI were associated with elevated 3-year mortality rates. There was no association with being overweight or obese on mortality, nor was there an association with intentional weight loss and mortality. Conclusions. Our study suggests that undernutrition, as measured by low BMI and unintentional weight loss, is a greater mortality threat to older adults than is obesity or intentional weight loss.
AB - Background. The relationship between body mass index (BMI), weight loss, and mortality in older adults is not entirely clear. The purpose of this article is to evaluate the associations between BMI, weight loss (either intentional or unintentional), and 3-year mortality in a cohort of older adults participating in the University of Alabama at Birmingham (UAB) Study of Aging. Methods. This article reports on 983 community-dwelling older adults who were enrolled in the UAB Study of Aging, a longitudinal observational study of mobility among older African American and white adults. Results. In both raw and adjusted Cox proportional hazards models, unintentional weight loss and underweight BMI were associated with elevated 3-year mortality rates. There was no association with being overweight or obese on mortality, nor was there an association with intentional weight loss and mortality. Conclusions. Our study suggests that undernutrition, as measured by low BMI and unintentional weight loss, is a greater mortality threat to older adults than is obesity or intentional weight loss.
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U2 - 10.1093/gerona/62.12.1389
DO - 10.1093/gerona/62.12.1389
M3 - Article
C2 - 18166690
AN - SCOPUS:38549129751
SN - 1079-5006
VL - 62
SP - 1389
EP - 1392
JO - Journals of Gerontology - Series A Biological Sciences and Medical Sciences
JF - Journals of Gerontology - Series A Biological Sciences and Medical Sciences
IS - 12
ER -