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Screening for malnutrition in elderly acute medical patients: the usefulness of MNA-SF.
J Nutr Health Aging 2005 Jul-Aug; 9(4):221-5JN

Abstract

BACKGROUND

Malnutrition is often over-seen in elderly acute medical patients. It is a need for a simple and robust screening tool.

OBJECTIVE

The aim was to evaluate, with regard to validity, the Mini Nutritional Assessment-Short Form (MNA-SF) as a screening tool for malnutrition in elderly acute medical patients.

DESIGN

This is an observational study where a nurse's scoring of MNA-SF is compared to comprehensive assessment by a clinical nutritionist (gold standard). Sixty-nine patients aged 70 years and older and admitted to a general medical department in year 2000 and 2001 were included.

RESULTS

The mean MNA-SF score was 7.8 (SD +/- 2.88, range 2 to 12). Fifty-one patients (74%) scored positive for malnutrition or risk of malnutrition (MNA-SF < 11), whereas only 21 (30%) were scored to have malnutrition by the nutritionist. Sensitivity of the MNA-SF was 1.0 and specificity 0.38, giving 0.57 correctly classified subjects. Best subset logistic regression showed BMI < 23 to be the only item explaining the gold standard. When using BMI < 23, 32 (46%) subjects screened positive for malnutrition (sensitivity 0.86, specificity 0.71), giving 0.75 correctly classified subjects.

CONCLUSIONS

When screening elderly acute medical patients in general wards for malnutrition or risk of malnutrition, the MNA-SF have a high sensitivity and can be useful. The sole use of BMI < 23 may be equally effective, but will give no information leading towards an explanation. We recommend that a score of BM < 23 should be followed by MNA-SF when the aim is to identify poor nutritional status in elderly acute medical patients.

Authors+Show Affiliations

Research Group in Geriatric Medicine, University of Oslo, Norway. ahranhoff@yahoo.noNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15980922

Citation

Ranhoff, A H., et al. "Screening for Malnutrition in Elderly Acute Medical Patients: the Usefulness of MNA-SF." The Journal of Nutrition, Health & Aging, vol. 9, no. 4, 2005, pp. 221-5.
Ranhoff AH, Gjøen AU, Mowé M. Screening for malnutrition in elderly acute medical patients: the usefulness of MNA-SF. J Nutr Health Aging. 2005;9(4):221-5.
Ranhoff, A. H., Gjøen, A. U., & Mowé, M. (2005). Screening for malnutrition in elderly acute medical patients: the usefulness of MNA-SF. The Journal of Nutrition, Health & Aging, 9(4), pp. 221-5.
Ranhoff AH, Gjøen AU, Mowé M. Screening for Malnutrition in Elderly Acute Medical Patients: the Usefulness of MNA-SF. J Nutr Health Aging. 2005;9(4):221-5. PubMed PMID: 15980922.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Screening for malnutrition in elderly acute medical patients: the usefulness of MNA-SF. AU - Ranhoff,A H, AU - Gjøen,A U, AU - Mowé,M, PY - 2005/6/28/pubmed PY - 2005/9/13/medline PY - 2005/6/28/entrez SP - 221 EP - 5 JF - The journal of nutrition, health & aging JO - J Nutr Health Aging VL - 9 IS - 4 N2 - BACKGROUND: Malnutrition is often over-seen in elderly acute medical patients. It is a need for a simple and robust screening tool. OBJECTIVE: The aim was to evaluate, with regard to validity, the Mini Nutritional Assessment-Short Form (MNA-SF) as a screening tool for malnutrition in elderly acute medical patients. DESIGN: This is an observational study where a nurse's scoring of MNA-SF is compared to comprehensive assessment by a clinical nutritionist (gold standard). Sixty-nine patients aged 70 years and older and admitted to a general medical department in year 2000 and 2001 were included. RESULTS: The mean MNA-SF score was 7.8 (SD +/- 2.88, range 2 to 12). Fifty-one patients (74%) scored positive for malnutrition or risk of malnutrition (MNA-SF < 11), whereas only 21 (30%) were scored to have malnutrition by the nutritionist. Sensitivity of the MNA-SF was 1.0 and specificity 0.38, giving 0.57 correctly classified subjects. Best subset logistic regression showed BMI < 23 to be the only item explaining the gold standard. When using BMI < 23, 32 (46%) subjects screened positive for malnutrition (sensitivity 0.86, specificity 0.71), giving 0.75 correctly classified subjects. CONCLUSIONS: When screening elderly acute medical patients in general wards for malnutrition or risk of malnutrition, the MNA-SF have a high sensitivity and can be useful. The sole use of BMI < 23 may be equally effective, but will give no information leading towards an explanation. We recommend that a score of BM < 23 should be followed by MNA-SF when the aim is to identify poor nutritional status in elderly acute medical patients. SN - 1279-7707 UR - https://www.unboundmedicine.com/medline/citation/15980922/Screening_for_malnutrition_in_elderly_acute_medical_patients:_the_usefulness_of_MNA_SF_ L2 - https://medlineplus.gov/malnutrition.html DB - PRIME DP - Unbound Medicine ER -