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  • Title: How important is malnutrition? A prospective study in internal medicine.
    Author: Venzin RM, Kamber N, Keller WC, Suter PM, Reinhart WH.
    Journal: Eur J Clin Nutr; 2009 Mar; 63(3):430-6. PubMed ID: 17987052.
    Abstract:
    BACKGROUND/OBJECTIVE: Data about the prevalence of malnutrition on hospital admission vary and follow-up data are scarce. We assessed the nutritional status of unselected patients on admission and discharge. SUBJECTS/METHODS: A total of 430 consecutively admitted patients were assessed and 168 patients hospitalized > or =6 days were reassessed on discharge. Assessment was carried out by the Mini Nutritional Assessment (MNA), weight and anthropometric measurements, bioelectrical impedance analysis, biochemical markers and a subjective clinical assessment by the physicians in charge. RESULTS: On admission, 47% of all patients were overweight (body mass index, BMI >25 kg m(-2)) and 8% underweight (BMI<18.5 kg m(-2)). In terms of the MNA 70% were adequately nourished, 20% were at risk for malnutrition and 10% were malnourished. By clinical judgment alone 18 (4.3%) malnourished patients according to MNA were missed. The 44 malnourished patients according to the MNA had significantly lower values for BMI, fat-free mass, fat mass, waist circumference, triceps skinfold thickness, hemoglobin, albumin, prealbumin, total cholesterol but higher values for C-reactive protein. Of the 168 patients staying > or =6 days in hospital, 57% lost and 39% gained weight. Only 1.9% of all patients (8 of 430) were malnourished and lost further weight during hospitalization. CONCLUSIONS: We found a low prevalence (10%) of malnourished patients on admission. Clinical judgment and to some extent anthropometrical measurement were helpful for assessing the nutritional status, laboratory values were not.
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