Mechanisms of ageing and development
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Malnutrition is associated with poor functional performance in geriatric rehabilitation inpatients. However, it is unclear if malnourished patients have poor functional trajectories over time. This study aimed to determine the association between (the risk of) malnutrition at admission and trajectories of Activities of Daily Living (ADL) and Instrumental ADL (IADL) from pre-admission to post-discharge in geriatric rehabilitation inpatients. ⋯ Malnutrition by the GLIM criteria but not the ESPEN criteria nor the risk of malnutrition, was associated with ADL trajectories of 'remained poor' (OR: 3.33, 95 %CI: 1.21-9.19) and 'deteriorated' (OR: 1.68, 95 %CI: 1.13-2.52) compared to the 'recovered' trajectory. The risk of malnutrition and malnutrition were not associated with IADL trajectories. Malnutrition at admission was associated with poor ADL trajectories but not IADL trajectories in geriatric rehabilitation inpatients.