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Executive dysfunction and disability in elderly patients with major depression.

D N Kiosses1, S Klimstra, C Murphy

  • 1Weil College of Medicine, Cornell University, Ithaca, NY, USA.

The American Journal of Geriatric Psychiatry : Official Journal of the American Association for Geriatric Psychiatry
|August 2, 2001
PubMed
Summary

Cognitive impairment, specifically initiation/perseveration (IP), significantly impacts daily living activities in elderly patients with depression. Addressing IP deficits is crucial for managing disability in this population.

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Area of Science:

  • Gerontology
  • Neuropsychiatry
  • Clinical Psychology

Background:

  • Elderly individuals with unipolar major depression often experience functional decline.
  • Instrumental activities of daily living (IADL) are essential for independent living in older adults.
  • Cognitive impairments can exacerbate depression and disability in the elderly.

Purpose of the Study:

  • To investigate the relationship between cognitive function and IADL impairment in elderly patients with major depression.
  • To identify specific cognitive domains that contribute to IADL deficits in this population.
  • To explore the moderating role of cognitive function on the association between depression and IADL impairment.

Main Methods:

  • A cross-sectional study involving 126 elderly patients diagnosed with unipolar major depression and without dementia.

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  • Assessment of IADL functioning, depressive symptom severity, and various cognitive domains.
  • Statistical analysis to determine significant associations and interactions between variables.

    • Main Results:

    • IADL impairment was significantly associated with age, gender, medical burden, depression severity, and initiation/perseveration (IP).
    • The association between depression and IADL impairment was primarily observed in patients with impaired IP.
    • Only IP among the cognitive impairments significantly contributed to IADL impairment; attention, memory, and other executive functions did not.

    Conclusions:

    • Initiation/perseveration deficits are a key cognitive factor linked to IADL impairment in elderly patients with depression.
    • Targeting executive functions, particularly IP, may be a promising strategy for clinical interventions.
    • Further research into executive function and disability can inform novel pharmacological and behavioral treatments for geriatric depression.