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Risk factors for post-stroke depression

G Andersen1, K Vestergaard, M Ingemann-Nielsen

  • 1Department of Neurology, Aalborg Hospital, Denmark.

Acta Psychiatrica Scandinavica
|September 1, 1995
PubMed
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Post-stroke depression (PSD) is linked to pre-existing factors like prior stroke or depression, and social issues. Intellectual impairment significantly predicts mood changes after stroke, indicating a complex cause.

Area of Science:

  • Neurology
  • Psychiatry
  • Public Health

Background:

  • Post-stroke depression (PSD) is a common and debilitating complication following cerebrovascular accidents.
  • Identifying risk factors for PSD is crucial for timely intervention and improved patient outcomes.
  • Previous research suggests a multifactorial etiology, but specific contributing factors require further elucidation.

Purpose of the Study:

  • To investigate the correlation between various potential risk factors and the 1-year incidence of post-stroke depression (PSD).
  • To identify key predictors of mood disturbances in a cohort of stroke patients.
  • To explore the relationship between demographic, social, and clinical factors and the development of PSD.

Main Methods:

  • Studied an unselected cohort of 285 stroke patients (median age 69 years).

Related Experiment Videos

  • Assessed correlations between prestroke factors (history of stroke/depression, gender, living situation, social distress) and PSD.
  • Evaluated 1-month poststroke factors (social activity, emotional state, intellectual function, functional outcome) for PSD correlation.
  • Utilized multivariate regression analysis to determine the predictive power of identified factors on mood scores.

    • Main Results:

    • Significant correlations with PSD included: history of previous stroke, history of previous depression, female gender, living alone, and prestroke social distress.
    • Poststroke factors associated with PSD were: social inactivity, decreased social activity, pathological crying, and intellectual impairment.
    • Functional outcome at 1 month did not correlate with PSD.
    • Multivariate analysis revealed intellectual impairment explained 42% of the variance in mood scores.
    • Major depression was not related to the specific location of the brain lesion.

    Conclusions:

    • The etiology of PSD is complex, involving a combination of prestroke personal and social vulnerabilities.
    • Stroke-induced social, emotional, and intellectual handicaps significantly contribute to the development of PSD.
    • Intellectual impairment emerges as a critical factor influencing mood poststroke, independent of lesion location.