Lower body function and mortality in Mexican American elderly people

Kyriakos Markides, S. A. Black, G. V. Ostir, R. J. Angel, J. M. Guralnik, M. Lichtenstein

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Background. The purpose of this analysis was to examine the differential impact of performance-based and self-reported lower body measures on 2-year mortality in Mexican American elderly persons. Methods. Data employed are from the Hispanic Established Population for Epidemiological Studies of the Elderly, a probability survey of 3050 community-dwelling Mexican Americans aged 65 and older from the five Southwestern states interviewed in 1993 and 1994. Of the baseline sample with complete data, 198 persons were confirmed deceased 2 years later. A three-task, performance-based, lower body function measure consisting of a short walk, balance, and repeated chair stands tests was used. Self-reported lower body function was measured by a 4-item Activities of Daily Living (ADL) measure involving the lower body. Results. The three-task, lower body function measure was a significant predictor of 2-year mortality. The short walk alone was as predictive as the summary measure. The predictive ability of both measures was minimally reduced by the inclusion of the self-reported ADL measure and life-threatening medical conditions. Finally, the ADL measure was not a significant predictor of mortality with all the other variables in the analysis. Conclusion. Objective measures of lower body function were significant predicators of mortality in Mexican American elderly persons, as found in the general population. Unlike previous studies, the ADL measure was not an independent predictor of mortality after controlling for the objective measure and other risk factors. Additional research is needed to address why objective measures of function are such strong predictors of death.

Original languageEnglish (US)
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume56
Issue number4
StatePublished - 2001

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Body Weights and Measures
Activities of Daily Living
Mortality
Independent Living
Aptitude
Task Performance and Analysis
Hispanic Americans
Population
Epidemiologic Studies
Research

ASJC Scopus subject areas

  • Aging

Cite this

Lower body function and mortality in Mexican American elderly people. / Markides, Kyriakos; Black, S. A.; Ostir, G. V.; Angel, R. J.; Guralnik, J. M.; Lichtenstein, M.

In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences, Vol. 56, No. 4, 2001.

Research output: Contribution to journalArticle

Markides, Kyriakos ; Black, S. A. ; Ostir, G. V. ; Angel, R. J. ; Guralnik, J. M. ; Lichtenstein, M. / Lower body function and mortality in Mexican American elderly people. In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences. 2001 ; Vol. 56, No. 4.
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