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Development of Nutrition Screening Index for Hospitalized Patients
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Suan Kim, Soyeon Kim, Cheongmin Sohn
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Korean J Community Nutr 2006;11(6):779-784. Published online December 31, 2006
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 Abstract
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- Several studies about hospital malnutrition have been reported that about more than 40% of hospitalized patients are having nutritional risk factors and hospital malnutrition presents a high prevalence. People in a more severe nutritional status ended up with a longer length of hospital stay and higher hospital cost. Nutrition screening tools identify individuals who are malnourished or at risk of becoming malnourished and who may benefit from nutritional support. For the early detection and treatment of malnourished hospital patients, few valid screening instruments for Koreans exist. Therefore, the aim of this study was to develop a simple, reliable and valid malnutrition screening tool that could be used at hospital admission to identify adult patients at risk of malnutrition using medical electrical record data. Two hundred and one patients of the university affiliated medical center were assessed on nutritional status and classified as well nourished, moderately or severely malnourished by a Patient-Generated subjective global assessment (PG-SGA) being chosen as the 'gold standard' for defining malnutrition. The combination of nutrition screening questions with the highest sensitivity and specificity at prediction PG-SGA was termed the nutrition screening index (NSI). Odd ratio, and binary logistic regression were used to predict the best nutritional status predictors. Based on regression coefficient score, albumin less than 3.5 g/dl, body mass index (BMI) less than 18.5 kg/m2, total lymphocyte count less than 900 and age over 65 were determined as the best set of NSI. By using best nutritional predictors receiver operating characteristic curve with the area under the curve, sensitivity and 1-specificity were analyzed to determine the best optimal cut-off point to decide normal or abnormal in nutritional status. Therefore simple and beneficial NSI was developed for identifying patients with severe malnutrition. Using NSI, nutritional information of the severe malnutrition patient should be shared with physicians and they should be cared for by clinical dietitians to improve their nutritional status.
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Comparison of Nutritional Status and Inflammational Markers in DM and nonDM Hemodialysis Patients
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Suan Kim, Cheongmin Sohn, Dong Wan Chae
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Korean J Community Nutr 2005;10(5):693-699. Published online October 31, 2005
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Abstract
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- Protein-calorie malnutrition is common in maintenance dialysis patients. Indeed, diabetic patients with chronic renal failure are considered to be at increased risk of malnutrition. The aim of this study was to compare the nutritional status and markers of inflammation of hemodialysis patients with and without type 2 diabetes. We compared nutritional parameters and C-reactive protein (CRP) as a marker of inflammation in 30 type 2 diabetic patients and age-matched 30 non-diabetic patients with hemodialysis. Serum albumin was significantly lower in patients with type 2 diabetes (3.45 +/- 0.43 g/dL) than in non-diabetic patients (3.64 +/- 0.36 g/dL) (p < 0.05). In contrast, the concentration of serum CRP was significantly higher in type 2 diabetes (1.42 +/- 1.8 mg/dL) (p < 0.05). There were significant negative-relationships between serum albumin and CRP level in both diabetic (r = -0.553, p < 0.01) and non-diabetic (r = -0.579, p < 0.01) patients. In diabetic patients, serum albumin level was significantly correlated with hemoglobin (r = 0.488, p < 0.01) and hematocrit (r = 0.386, p < 0.01). Diabetic patients as compared to non-diabetic patients showed a significant (p < 0.01) increased serum triglyceride (TG) (153.1 +/- 80.1 mg/dL vs 101.6 +/- 62.4 mg/dL) and decreased serum HDL cholesterol (36.89 +/- 13.48mg/dL vs 47.00 +/- 14.02 mg/dL, P < 0.05). There were significant correlations in the intake of calorie and serum albumin levels in both diabetic (r = 0.438, p < 0.05) and non-diabetic (r = 0.527, p < 0.05) patients. Serum CRP level was negatively correlated with calorie (r = -0.468, p < 0.05), protein (r = -0.520, p < 0.01) and fat intakes (r = -0.403, p < 0.05) in diabetic patients and calorie (r = -0.534, p < 0.05) and protein intakes (r = -0.559, p < 0.05) in non-diabetic patients. The prevalence of protein malnutrition and the risk factors of cardiovascular disease were significantly higher in type 2 diabetic patients than in non-diabetic hemodialysis patients. Thus, we can suggest that the higher comorbidity and mortality rate in diabetic hemodialysis patients are partially explained by malnutrition and inflammation.
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