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KMID : 0664320100160020122
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Journal of the Korean Dietetic Association
2010 Volume.16 No. 2 p.122 ~ p.132
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Nutrition Assessment of Older Subjects in a Health Care Center by MNA (Mini Nutritional Assessment)
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Lee Hye-Ok
Lee Jeong-Sook
Shin Ji-Won
Lee Geum-Ju
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Abstract
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Elderly people comprise an increasing proportion of the population, and nutritional impairments may contribute to health problems among this group. This study was conducted to evaluate the nutritional status by Mini-Nutritional Assessment (MNA) and to identify relationships among anthropometric measurements, biochemical indicators, bone Mineral Density (BMD) and MNA results among older adults (≥65 yrs, n=98, 66.7±2.5 yrs; M=52, F=46, BMI 24.5±2.8 kg/m2) at a Health Care Center. A dietitian administered MNA and collected anthropometric measurements (weight, height, waist circumference), biochemical indicators (albumin, hemoglobin, hematocrit, TLC, glucose, lipids) and the BMD (spine, femur, F=46). Subjects were grouped into a normal nutrition group (0∼2 risk factors of malnutrition) and a high risk of malnutrition group (＞=3 risk factors of malnutrition) based on their risk factor status for malnutrition. The risk factors for malnutrition include age ≥65 years, PIBW ＜90%, albumin ＜3.5 g/dl, TLC ＜1,500%, Hgb ＜14 g/dl (men), Hgb ＜10 g/dl (women), loss of appetite and weight loss 1∼3 kg/last 3 months. In addition, subjects were grouped into a normal, osteopenia and osteoporosis group by BMD. We found that 12% of the subjects were at risk of malnutrition (MNA score, 21.4±2.1) and that 88% were well nourished (27.3±1.5) according to the MNA. Full-MNA scores were positively and significantly (p＜0.05) associated with BMI, mid-arm circumference (MAC), calf circumference (CC), albumin and hemoglobin, respectively. The full-MNA score of the high risk of malnutrition group (23.0±3.8) was lower than that of the normal nutrition group (27.0±2.1) (p＜0.05). In addition, the Full-MNA score was negatively associated with the risk factor of malnutrition (r=－0.35, p= 0.0004). We found that 39.1% of the subjects had osteoporosis, 45.7% had osteopenia and 15.2% were normal according to their BMD. The MNA score of osteoporosis group (24.58±3.3) was lower than that of the normal (27.4±1.1) and osteopenia group (26.9±1.5) (p＜0.05). These results suggested that MNA can be useful as a nutritional screening tool of older adults in Health Care Centers.
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KEYWORD
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mini nutrition assessment, nutritional screening tool, health care center, older malnutrition
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