Suicide and Alzheimer’s pathology in the elderly: a case–control study
Abstract
Background The single most important risk factor for Alzheimer's pathology is age. Elderly individuals are also at increased risk for suicide, but comprehensive studies of the association between Alzheimer's pathology and suicide are lacking. We designed the current study to determine if Alzheimer's disease changes are overrepresented in elderly people committing suicide.Methods The design is a case-control study. Cases (n = 28) were subjects older than 60 years of age who completed suicide. For each case, two age- and gender-matched individuals who died naturally were selected as control subjects (n = 56). Neuropathologic examination of hippocampal sections was performed blindly and included a modified Braak scoring system and semiquantitative assessment of neurofibrillary tangles, amyloid deposition, Lewy bodies, and Lewy-associated neurites. Data were analyzed by conditional logistic regression.Results The brains of individuals who committed suicide had higher modified Braak scores than those of matching control subjects (p =.0028). The number of neurofibrillary tangles in CA1 was not an independent predictor of suicide status in the statistical analysis (p =.16), although the distribution was more highly skewed among the cases (75th percentile of 10.5 for cases, vs. 2 for control subjects).Conclusions Severe Alzheimer's disease pathology is overrepresented in elderly patients who complete suicide.
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Other biological and epidemiologic data provide preliminary evidence that dementia is associated with increased suicide risk in older adults.
“Other biological (24) and epidemiologic (22) data provide at least preliminary evidence that dementia too is associated with increased risk of suicide in older adults.”
From Suicide in older adults (2011) · cites this paper as [24]
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- Authors
- Rubio, A., Vestner, A. L., Stewart, J. M., Forbes, N. T., Conwell, Y., & Cox, C.
- Affiliations
- University of Rochester Medicine (US)
- University of Rochester (US)
- Corresponding author
- Rubio, Ana
- Venue
- Biological Psychiatry
- Publisher
- Elsevier BV
- Published
- 2001-01
- Volume
- 49
- Issue
- 2
- Pages
- 137-145
- ISSN
- 0006-3223 (ISSN-L)
- OpenAlex
- W1967408773
- Cited by
- 115
- References
- 78
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 7 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 7 · 2017: 2 · 2016: 2 · 2015: 4 · 2014: 5 · 2013: 12 · 2012: 1
- FWCI
- 9.37
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Biological Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute on Aging (AG 08665, P30AG008665)
- National Institute of Mental Health (R01 MH54682, R01MH054682)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Keywords
- suicide, Alzheimer's disease, Alzheimer's disease pathology, older adults, hippocampus, amyloid deposition, Lewy bodies, neurofibrillary tangles, CA1, neuropathology
- MeSH terms
- Aged, Aged, 80 and over, Alzheimer Disease, Autopsy, Brain, Female, Hippocampus, Humans, Male, Middle Aged, Organ Size, Regression Analysis, Risk Factors, Suicide, Case-Control Studies, Neurofibrillary Tangles, Amyloid Neuropathies, Lewy Body Disease
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