Journal
ALZHEIMERS & DEMENTIA
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1002/alz.13423
Keywords
Alzheimer's disease; critical illness; delirium; dementia; depression; intensive care unit; stroke
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A secondary data analysis of ICU patients revealed that stroke and depression were identified as risk factors for post-ICU dementia, highlighting the need for interventions targeting these factors to reduce dementia incidence.
INTRODUCTIONAs the number of older intensive care unit (ICU) survivors grows, there is an urgent need to identify modifiable risk factors for post-ICU dementia. METHODSWe performed a secondary data analysis of 3144 ICU patients & GE; 50 years of age without a history of dementia or severe mental illness who were screened as part of the Pharmacological Management of Delirium (PMD) study. Delirium was assessed using the Confusion Assessment Method for the ICU. Dementia was identified using International Classification of Diseases Ninth and Tenth revision codes for dementia or prescription of anti-dementia medication. RESULTSAverage age (standard deviation) was 65.2 & PLUSMN; 9.5 years; 50.4% were female; and 37.3% were Black. Analyses identified stroke (adjusted hazard ratio [HR] 2.49; 95% confidence interval [CI: 1.52, 4.07], P < 0.001), and depression (adjusted HR 3.03; 95% CI [1.80, 5.10], P < 0.001) as post-ICU risk factors for dementia. DISCUSSIONFuture studies will need to examine whether interventions targeting post-ICU stroke and depression can lower dementia incidence in ICU survivors. HighlightsRisk factors for post-intensive care unit (ICU) dementia were distinct from those of Alzheimer's disease.Cardiovascular risk factors were not associated with dementia in older ICU survivors.Post-ICU stroke was associated with a higher risk of dementia in older ICU survivors.Post-ICU depression was associated with a higher risk of dementia in older ICU survivors.
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