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Related Experiment Video

Updated: May 3, 2026

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Executive function and mortality in homebound elderly adults.

Linh N Vu1, Michael J Dean1, Mkaya Mwamburi2

  • 1Department of Pharmacology, Experimental Therapeutics, Boston University Medical Campus, Boston, Massachusetts.

Journal of the American Geriatrics Society
|January 31, 2014
PubMed
Summary

Executive function, measured by the Trail-Making Test Part B, is linked to mortality in homebound elderly adults. Poorer executive function significantly increases the risk of death over an 8-year period.

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Area of Science:

  • Gerontology
  • Neuropsychology
  • Public Health

Background:

  • Homebound elderly adults often face complex health challenges.
  • Executive function plays a vital role in managing daily life and health.

Purpose of the Study:

  • To investigate the association between executive function and mortality in homebound elderly individuals.
  • To determine if executive function predicts mortality risk in this population.

Main Methods:

  • A longitudinal study followed 1,172 homebound adults aged 60+ for 8 years.
  • Executive function was assessed using the Trail-Making Test Part B (TMT B).
  • Multivariate logistic regression analyzed the relationship between TMT B scores and mortality.

Main Results:

  • Higher TMT B scores (indicating poorer executive function) were associated with increased mortality.
  • Participants with the slowest TMT B performance were over twice as likely to die compared to those with the fastest performance.
  • Memory and language functions were not significantly associated with mortality in the adjusted model.

Conclusions:

  • Executive function is a critical factor influencing health outcomes and mortality in homebound elderly adults.
  • Impaired executive function may hinder the management of medical conditions, leading to increased mortality risk.