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Burman, Maria
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Burman, M., Säätelä, S., Carlsson, M., Olofsson, B., Gustafson, Y. & Hörnsten, C. (2015). Body Mass Index, Mini Nutritional Assessment, and their Association with Five-Year Mortality in Very Old People. The Journal of Nutrition, Health & Aging, 19(4), 461-467
Open this publication in new window or tab >>Body Mass Index, Mini Nutritional Assessment, and their Association with Five-Year Mortality in Very Old People
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2015 (English)In: The Journal of Nutrition, Health & Aging, ISSN 1279-7707, E-ISSN 1760-4788, Vol. 19, no 4, p. 461-467Article in journal (Refereed) Published
Abstract [en]

OBJECTIVES: to investigate the prevalence of malnutrition and the association between Body Mass Index (BMI), Mini Nutritional Assessment (MNA) and five-year mortality in a representative population of very old (>85 years) people.

DESIGN: A prospective cohort study.

SETTING: A population-based study of very old people in northern Sweden and western Finland, living in institutional care or in the community.

PARTICIPANTS: Out of 1195 potential participants, 832 were included (mean age 90.2±4.6 years).

MEASUREMENTS: Nutritional status was assessed using BMI and MNA and the association of those two variables with five-year mortality was analyzed.

RESULTS: The mean BMI value for the whole population was 25.1±4.5 kg/m2, with no difference between genders (P=0.938). The mean MNA score was 22.5±4.6 for the whole sample, and it was lower for women than for men (P<0.001). Thirteen percent were malnourished (MNA<17) and 40.3% at risk of malnutrition (MNA 17-23.5) according to MNA. Also, 34.8% of those with a MNA score <17 still had a BMI value ≥22.2 kg/m2. A BMI value <22.2 kg/m2 and a MNA score<17 were associated with lower survival. The association with mortality seemed to be J-shaped for BMI, and linear for MNA.

CONCLUSIONS: Malnutrition according to MNA was common, but a substantial portion of those with a low MNA score still had a high BMI value, and vice versa. The association with mortality appeared to be J-shaped for BMI, and linear for MNA. The MNA seems to be a good measurement of malnutrition in very old people, and BMI might be misleading and could underestimate the prevalence of malnutrition, especially in women.

Place, publisher, year, edition, pages
Paris: Springer, 2015
Keywords
MNA, BMI, very old, five-year mortality
National Category
Nursing
Identifiers
urn:nbn:se:umu:diva-101459 (URN)10.1007/s12603-015-0443-x (DOI)000352705800012 ()25809811 (PubMedID)
Available from: 2015-03-31 Created: 2015-03-31 Last updated: 2018-06-07Bibliographically approved
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