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Wasting syndrome and associated factors in hospitalized older people.
Experimental Gerontology 2022 October 22
Wasting syndrome (WS) is characterized by clinically important unintentional weight loss >5 % in six to 12 months. This syndrome is responsible for a significant portion of hospitalizations throughout the world and is an important indicator of serious diseases, especially in individuals with 60 years of age or older. The aim of the present study was to investigate WS and associated factors in hospitalized older people. An observational cross-sectional study was developed at a university hospital in Brazil with male and female patients ≥60 years of age. WS was considered in the occurrence of unintentional weight loss of 10 % in 12 months, 7.5 % in six months or >5 % in three months. Data were collected on sociodemographic, clinical, lifestyle, nutritional and biochemical characteristics. This study received approval from the local institutional review board and all participants signed a statement of informed consent. The sample was composed of 178 older people with a mean age of 70.0 ± 8.0 years. The prevalence of WS was 45.5 %. WS was associated with the following clinical variables: conservative CKD (p = 0.007), dysphagia (p = 0.035), dementia (p = 0.017), anorexia (p < 0.001), fatigue (p = 0.001), functional dependence (measured using the Barthel Index) (p = 0.001) and medications that cause malabsorption (p = 0.020); the following nutritional variables: body mass index (p < 0.001), low calf circumference (p < 0.001), low muscle strength (p = 0.001), low muscle mass (p < 0.001) and undernourishment or risk of malnutrition (evaluated using the Mini Nutritional Assessment); and the following biochemical variables: high CRP (p = 0.027), hypoalbuminemia (p = 0.005) and anemia (p < 0.001). The prevalence of WS was high among the hospitalized older people in the present sample and was associated with clinical and biochemical aspects as well as all nutritional variables analyzed. In contrast, lifestyle and sociodemographic characteristics were not associated with wasting syndrome.
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