O impacto do envelhecimento no paciente hospitalizado: análise do risco nutricional

Abstract

Objective: The purpose of this study was to analyze the presence of nutritional risk and their correlation with clinical outcome in elderly hospitalized patients. Methods: The study variables were weight, height, body mass index (BMI), nutritional risk, length of stay and death of hospitalized patients in a public hospital in São Paulo. These data were obtained by Sheet Nutritional Care, dietitians completed by the institution. Nutritional risk was determined by nutritional screening tool NRS-2002. To investigate the association between the presence of nutritional risk and other study variables, we used Rao & Scott test and multiple logistic regression (stepwise forward), with 5% significance level. It proceeded to univariate analysis, and variables with p <0.20, in ascending order of entry were included in multiple regression. They remained in the model the variables with p <0.05, or those set by at least 10% the value of odds ratio of other variables. Results: We evaluated the records of 2613 patients, with a mean age of 73.87 years, 54.84% female, 47.26% of the population were at nutritional risk and 37.3% undernutrition. The nutritional risk groups according to age showed that the greater the age, the prevalence greater risk for malnutrition. There was a good statistical correlation with BMI, because the risk was more prevalent in malnourished group (54.41%). It was found that 11.9% of those who had died nutritional risk, while those who did not risk, only 1.66%. Conclusion: From this study it was found that for older people studied the risk for malnutrition correlated positively with age, BMI, length of stay and the occurrence of deaths.