Cited by 34Dementia and Cognitive Impairment ResearchCancer-related cognitive impairment studiesNeurological Disease Mechanisms and Treatments

Toward Prevention of Mild Cognitive Impairment in Older Adults With Depression: An Observational Study of Potentially Modifiable Risk Factors

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Gallagher, Damien, Kiss, Alex, Lanctot, Krista L., Herrmann, Nathan·2018·The Journal of Clinical Psychiatry

Abstract

OBJECTIVE: Late-life depression has been associated with increased risk of mild cognitive impairment (MCI) and dementia. Predictors of increased risk are incompletely understood. Identification of potentially modifiable risk factors could facilitate prevention of MCI and dementia. This study aimed to determine which clinical characteristics are associated with increased risk of MCI among older adults with depression and normal cognition at baseline. METHODS: Data from the National Alzheimer's Coordinating Center dataset were used. Study participants who attended a participating Alzheimer's Disease Center from September 2005 through September 2017 with normal cognition and a history of clinically defined depression (broadly based on DSM criteria) were followed until first diagnosis of MCI (or dementia when MCI was not diagnosed). RESULTS: A total of 2,655 study participants were followed for a median duration of 41.8 months. Of these, 586 (22.1%) developed either MCI (n = 509, 19.2%) or dementia (n = 77, 2.9%). In survival analyses, cognitive decline was associated with age, sex, education, baseline cognition, and several potentially modifiable risk factors including vascular risk factors, hearing impairment, vitamin B₁₂ deficiency, active depression within the last 2 years, and increased severity of depression. In an adjusted survival analysis, the only variables that remained significantly associated with development of MCI or dementia were female sex (HR = 0.72; 95% CI, 0.59-0.88), higher education (HR = 0.96; 95% CI, 0.93-0.99), and higher baseline cognition (HR = 0.87; 95% CI, 0.82-0.93), which were associated with reduced risk, and older age (HR = 1.07; 95% CI, 1.05-1.08), active depression within the last 2 years (HR = 1.41; 95% CI, 1.15-1.74), and increased severity of depression (HR = 1.05; 95% CI, 1.02-1.09), which were associated with increased risk. CONCLUSIONS: Development of MCI is associated with several potentially modifiable risk factors in older adults with depression. Future studies should determine whether active management of risk factors could reduce incidence of MCI in this vulnerable population.

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  1. [48]In: Downey A, Stroud C, Landis S, Leshner AI, eds. Preventing Cognitive Decline and Dementia: A Way Forward Washington (DC); 2017. 28650595

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Authors
Gallagher, D., Kiss, A., Lanctot, K. L., & Herrmann, N.
Affiliations
  • Sunnybrook Health Science Centre (CA)
  • University of Toronto (CA)
Corresponding author
Gallagher, Damien
Venue
The Journal of Clinical Psychiatry
Published
2018-11-27
Volume
80
Issue
1
ISSN
  • 0160-6689 (ISSN-L)
  • 1555-2101
OpenAlex
W2902069775
Cited by
34
References
54
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 3 · 2022: 8 · 2021: 4 · 2020: 10 · 2019: 1
FWCI
2.90
Type
journal article
Language
en
Open access
Locations
  • The Journal of Clinical Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Eli Lilly and Company (P50 AG005134)
  • Pfizer
  • University of Toronto
  • Astellas Pharma
  • H. Lundbeck A/S
  • National Institutes of Health (AG028 383, AG016574, AG049638, AG016573, AG016976, AG010124, AG023501, AG005138, AG005133, AG005131, AG008017, AG010129, AG008051, AG005681, AG019610, AG035982, AG047270, AG005134, AG047366, AG053760, AG010161, AG013854, AG025688, AG013846, AG047266, AG005136, AG033514, AG008702)
  • Department of Psychiatry, University of Toronto
  • National Institute on Aging (AG 005138, AG-028383, AG010133, AG 016976, P30AG053760, P30AG010129, P30AG010133, AG-016573, AG008051, AG005134, P30AG049638, AG047366, AG-010124, P30AG028383, P30AG012300, AG-005133, AG 025688, AG016574, AG008017, P50AG005133, U01AG016976, P50AG005131, AG-013854, AG035982, AG049638, P50AG005138, AG019610, AG010161, P30AG010124, AG047266, P50AG016573, P50AG047366, AG010129, P30AG008017, AG-033514, P30AG010161, AG005131, P30AG008051, P50AG008702, P50AG033514, AG023501, P30AG035982, AG013846, P50AG005681, P50AG005142, P50AG047270, P30AG019610, P50AG005146, AG047270, P30AG013846, P50AG005136, P50AG005134, P30AG013854, AG053760, P50AG025688, P50AG047266, AG005681, P50AG023501, P50AG016574)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cancer-related cognitive impairment studies
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
mild cognitive impairment, geriatric depression, dementia risk, older adults, cognitive decline, modifiable risk factors, depression severity, vascular risk factors, hearing loss, vitamin B12 deficiency, sex differences, educational attainment, Alzheimer's disease, risk prediction model
MeSH terms
Aged, Aged, 80 and over, Dementia, Depression, Major Depressive Disorder, Female, Humans, Longitudinal Studies, Male, Middle Aged, Risk Factors, Severity of Illness Index, Comorbidity, Incidence, Disease Progression, Cognitive Dysfunction

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