Four-year lower extremity disability trajectories among African American men and women

Fredric D. Wolinsky, Thomas R. Miller, Theodore K. Malmstrom, J. Philip Miller, Mario Schootman, Elena Andresen, Douglas K. Miller

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background. We examined 4-year lower extremity disability trajectories. Methods. Nine hundred ninety-eight African American men and women 49-65 years old were evaluated at baseline and at four annual follow-ups. Lower extremity disability was the number of difficulties with nine standard activities of daily living (ADL), instrumental ADLs (IADL), and lower body function items. Mixed-effect models were used. Results. The 9-item lower extremity disability measure had factorial validity and high reliability (α > 0.88). The mean baseline lower extremity disability score was 2.43, and at the subsequent follow-ups it was 2.23, 2.35, 2.60, and 2.70. The mixed-effect model included significant random intercept and aging effects. Fixed factors with the largest effect sizes (all p ≤ .001) were physical performance (-0.238 lower extremity disabilities per point on the Short Physical Performance Battery [SPPB]), fear of falling (1.094), poor or fair self-rated health (0.735), self-reported arthritis (0.659), clinically relevant levels of depression symptoms (0.641), body mass index (0.047 per kg/m2 unit), aging (0.082 per year), and asthma (0.558). Conclusions. To improve lower extremity disability trajectories among African Americans, interventions should focus on improving SPPB scores. In addition, fear of falling, poor or fair self-rated health, and clinically relevant levels of depression symptoms should be considered potential intervention candidates warranting further evaluation.

Original languageEnglish (US)
Pages (from-to)525-530
Number of pages6
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume62
Issue number5
StatePublished - May 2007
Externally publishedYes

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African Americans
Lower Extremity
Accidental Falls
Activities of Daily Living
Fear
Depression
Health
Reproducibility of Results
Arthritis
Body Mass Index
Asthma

ASJC Scopus subject areas

  • Aging

Cite this

Wolinsky, F. D., Miller, T. R., Malmstrom, T. K., Miller, J. P., Schootman, M., Andresen, E., & Miller, D. K. (2007). Four-year lower extremity disability trajectories among African American men and women. Journals of Gerontology - Series A Biological Sciences and Medical Sciences, 62(5), 525-530.

Four-year lower extremity disability trajectories among African American men and women. / Wolinsky, Fredric D.; Miller, Thomas R.; Malmstrom, Theodore K.; Miller, J. Philip; Schootman, Mario; Andresen, Elena; Miller, Douglas K.

In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences, Vol. 62, No. 5, 05.2007, p. 525-530.

Research output: Contribution to journalArticle

Wolinsky, FD, Miller, TR, Malmstrom, TK, Miller, JP, Schootman, M, Andresen, E & Miller, DK 2007, 'Four-year lower extremity disability trajectories among African American men and women', Journals of Gerontology - Series A Biological Sciences and Medical Sciences, vol. 62, no. 5, pp. 525-530.
Wolinsky, Fredric D. ; Miller, Thomas R. ; Malmstrom, Theodore K. ; Miller, J. Philip ; Schootman, Mario ; Andresen, Elena ; Miller, Douglas K. / Four-year lower extremity disability trajectories among African American men and women. In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences. 2007 ; Vol. 62, No. 5. pp. 525-530.
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