Nutr Res Pract.  2015 Dec;9(6):637-643. 10.4162/nrp.2015.9.6.637.

Evaluation of the efficacy of nutritional screening tools to predict malnutrition in the elderly at a geriatric care hospital

• Baek MH
• Heo YR

• KMID: 2313888
• DOI: http://doi.org/10.4162/nrp.2015.9.6.637

Abstract

BACKGROUND/OBJECTIVES
Malnutrition in the elderly is a serious problem, prevalent in both hospitals and care homes. Due to the absence of a gold standard for malnutrition, herein we evaluate the efficacy of five nutritional screening tools developed or used for the elderly.
SUBJECTS/METHODS
Elected medical records of 141 elderly patients (86 men and 55 women, aged 73.5 +/- 5.2 years) hospitalized at a geriatric care hospital were analyzed. Nutritional screening was performed using the following tools: Mini Nutrition Assessment (MNA), Mini Nutrition Assessment-Short Form (MNA-SF), Geriatric Nutritional Risk Index (GNRI), Malnutrition Universal Screening Tool (MUST) and Nutritional Risk Screening 2002 (NRS 2002). A combined index for malnutrition was also calculated as a reference tool. Each patient evaluated as malnourished to any degree or at risk of malnutrition according to at least four out of five of the aforementioned tools was categorized as malnourished in the combined index classification.
RESULTS
According to the combined index, 44.0% of the patients were at risk of malnutrition to some degree. While the nutritional risk and/or malnutrition varied greatly depending on the tool applied, ranging from 36.2% (MUST) to 72.3% (MNA-SF). MUST showed good validity (sensitivity 80.6%, specificity 98.7%) and almost perfect agreement (k = 0.81) with the combined index. In contrast, MNA-SF showed poor validity (sensitivity 100%, specificity 49.4%) and only moderate agreement (k = 0.46) with the combined index.
CONCLUSIONS
MNA-SF was found to overestimate the nutritional risk in the elderly. MUST appeared to be the most valid and useful screening tool to predict malnutrition in the elderly at a geriatric care hospital.

Keyword

Nutritional screening; malnutrition; elderly; efficacy; validity

MeSH Terms

Aged*
Classification
Female
Humans
Male
Malnutrition*
Mass Screening*
Medical Records
Nutrition Assessment
Sensitivity and Specificity

Figure

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  Fig. 1 Distribution of nutritional status according to the screening tools used

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