ArticleGeroScience2026
Malnutrition as an independent risk factor for incident delirium in cohort of older adults receiving domiciliary care services.
Article in GeroScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
backgroundMalnutrition and frailty frequently affect older adults receiving domiciliary care services, increasing their vulnerability to adverse events such as delirium. Despite this, the role of malnutrition as a risk factor for delirium in this population remains under-researched. The aim of this study was to examine the relationship between nutritional status and the development of delirium over a 2-year period among older adults who received domiciliary care services.
methodIn this 2-year prospective cohort study, we included 210 participants aged 65 years or older who received domiciliary care services at least once per week. Nutritional status was assessed using the Mini Nutritional Assessment at the time of inclusion, while delirium was assessed weekly, upon admission to hospital, and upon clinical indication according to DSM-5 criteria. Logistic regression analysis was used to examine the relationship between malnutrition and delirium.
resultsOf the sample, 116 (55.2%) were malnourished/at risk of malnutrition at the time of inclusion. Over a 2-year period, 42.4% developed delirium. The odds ratio for developing delirium was 2.00 (95% CI 1.08-3.72, P = 0.028), for the group with malnutrition/risk of malnutrition, adjusted for covariates.
conclusionMalnutrition is an independent risk factor for delirium in older adults receiving domiciliary care services. These findings highlight the importance of regular nutritional assessments and interventions to potentially reduce the risk of delirium in this vulnerable population.
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