Late-Onset Suicide: A Dementia Prodrome?
- PMID: 33317918
- PMCID: PMC8187470
- DOI: 10.1016/j.jagp.2020.12.004
Late-Onset Suicide: A Dementia Prodrome?
Abstract
Objectives: This study examined whether late-onset (versus early-onset) suicidal behavior is associated with worse cognition.
Methods: Participants included 278 adults aged 50+ years (56 nonpsychiatric comparison group; 67 nonsuicidal depressed older adults; 63 depressed suicide ideators; and 44 late-onset (55+ years) and 48 early-onset suicide attempters (<55 years). Using a case-control design, this study examined group differences in global cognition, episodic memory, information processing speed, and executive functioning, assessed using the Repeatable Battery of Neuropsychological Status and the Trail Making Test from the Delis-Kaplan Executive Function System. Linear regression was used for data analyses.
Results: Both attempter groups displayed worse executive functioning than nonsuicidal depressed older adults. Late-onset attempters additionally displayed poorer global cognition and processing speed than nonsuicidal depressed older adults and poorer memory than early-onset attempters.
Conclusions: Late-onset suicidal behavior is associated with worse performance in a broad range of cognitive domains, possibly reflective of a dementia prodrome.
Keywords: Cognition; Dementia; Late-life depression; Suicide.
Copyright © 2020. Published by Elsevier Inc.
Conflict of interest statement
Conflicts of Interest: The authors declare no conflicts of interest.
References
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- Richard-Devantoy S, Berlim MT, Jollant F. A meta-analysis of neuropsychological markers of vulnerability to suicidal behavior in mood disorders. Psychological medicine. 2014;44(8):1663–1673. - PubMed
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- Tu YA, Chen MH, Tsai CF, et al. Geriatric Suicide Attempt and Risk of Subsequent Dementia: A Nationwide Longitudinal Follow-up Study in Taiwan. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry. 2016;24(12):1211–1218. - PubMed
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