Understanding trends in functional limitations among older Americans

V.A. Freedman and L.G. Martin

American Journal of Public Health, 1998, vol. 88, issue 10, 1457-1462

Abstract: Objectives. This report documents trends in functional limitations among older Americans from 1984 to 1993 and investigates reasons for such trends. Methods. We applied logistic regression to data for noninstitutionalized Americans aged 50 years and older from the Survey of Income and Program Participation. We focused on 4 functional limitation measures unlikely to be affected by changes in role expectations and living environments: reported difficulty seeing words in a newspaper, lifting and carrying 10 pounds, climbing a flight of stairs, and walking a quarter of a mile. Results. We found large declines in the crude prevalence of functional limitations, especially for those 80 years and older. Generally, changes in population composition explained only a small portion of the downward trends. Once changes in population composition and mobility-related device use were considered for difficulty walking, significant improvements of functioning remained for the 65- to 79-year-old group. Conclusions. Changes in population composition, device use, survey design, role expectations, and living environments do not appear to account completely for improvements in functioning. We infer that changes in underlying physiological capability - whether real or perceived - likely underlie such trends.

Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:1998:88:10:1457-1462_8

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