End-of-life decision-making capacity in older people with serious mental illness

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Authors

Kotze, Carla
Roos, J.L. (Johannes Louw)
Ehlers, Rene

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Publisher

Frontiers Research Foundation

Abstract

BACKGROUND : The study’s main aim was to assess the end-of-life decision-making capacity and health-related values of older people with serious mental illness. METHODS : A cross-sectional, observational study, was done at Weskoppies Psychiatric Hospital, Gauteng Province, South Africa that included 100 adults older than 60 years of age and diagnosed with serious mental illness. The Mini-Cog and a semi-structured clinical assessment of end-of-life decision-making capacity was done before a standardized interview, Assessment of Capacity to Consent to Treatment, was administered. This standardized instrument uses a hypothetical vignette to assess decision-making capacity and explores healthcare-related values. RESULTS : The Assessment of Capacity to Consent to Treatment scores correlated (p < 0.001) with the outcomes of the semi-structured decision-making capacity evaluation. Significant correlations with impaired decision-making capacity included: lower scores on the Mini-Cog (p < 0.001); a duration of serious mental illness of 30–39 years (p = 0025); having a diagnosis of schizophrenia spectrum disorders (p = 0.0007); and being admitted involuntarily (p < 0.0001). A main finding was that 65% of participants had decision-making capacity for end-of-life decisions, were able to express their values and engage in advance care discussions. DISCUSSION AND CONCLUSION : Healthcare providers have a duty to initiate advance care discussions, optimize decision-making capacity, and protect autonomous decision-making. Many older patients with serious mental illness can engage in end-of-life discussions and can make autonomous decisions about preferred end-of-life care. Chronological age or diagnostic categories should never be used as reasons for discrimination, and older people with serious mental illness should receive end-of-life care in keeping with their preferences and values.

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Keywords

End-of-life, Decision-making capacity, Values, Elderly, Serious mental illness

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Citation

Kotze, C., Roos, J.L. & Ehlers, R. (2021) End-of-Life Decision-Making Capacity in Older People With Serious Mental Illness. Frontiers in Psychiatry 12:752897. DOI: 10.3389/fpsyt.2021.752897.