Abstract
BACKGROUND/OBJECTIVES: Malnutrition is a very common condition among older people and strongly affects their quality of life. The current literature relates the presence of nutritional deficiencies to several health-related factors that usually emerge at advanced stages of life. This study aimed to assess the associations between malnutrition and its determinants in a group of institutionalized older people via the Mini Nutritional Assessment-Short Form (MNA-SF) and the full MNA. METHODS: The MNA-SF was compared with the full MNA to evaluate the nutritional status of 207 older people. A multinomial logistic regression analysis was performed. RESULTS: The data revealed that institutionalized older people with cognitive impairment, frailty syndrome, dysphagia, a low BMI, a high duration of institutionalization, and a low educational level are more likely to be malnourished or at risk of malnutrition. CONCLUSIONS: The results reveal that the MNA or MNA-SF may not identify common determinants of malnutrition or nutritional risk. The identified determinants depend on the test. Therefore, the data obtained determine the need to use adequate nutritional screening tools to control the presence of malnutrition. Nutritional screening is essential to decrease public costs, hospitalizations, rates of disability, dependence, morbidity, and even mortality among institutionalized older people.