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Erschienen in: The journal of nutrition, health & aging 10/2019

01.08.2019

Nutritional Status and Cognitive Impairment among the Very Old in a Community Sample from Southern Brazil

verfasst von: João Senger, N. M. Bruscato, B. Werle, E. H. Moriguchi, M. P. Pattussi

Erschienen in: The journal of nutrition, health & aging | Ausgabe 10/2019

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Abstract

Objective

To determine which factors, especially those related to nutrition, are associated with cognitive function in the oldest old, here considered those at least 80 years of age.

Design

A cross-sectional, population-based study.

Setting

Veranópolis, Rio Grande do Sul, Brazil, and surrounding rural areas.

Participants

Individuals aged 80 years and older.

Measurements

The Mini Nutritional Assessment, anthropometric measurements, and serum levels of albumin and vitamin B12 were associated with cognitive function according to the Mini Mental State Examination (MMSE) and the Clock Drawing Test (CDT). Sociodemographic data were obtained through a structured questionnaire. Multivariate analysis was used to determine the associations.

Results

According to the MMSE and the CDT, the prevalence of cognitive impairment was 47.7% [95%CI 39.7–55.7] and 58.2% [95%CI 50.3–66.1], respectively. In the adjusted analysis, the only positive linear association with MMSE scores indicating cognitive impairment was age. However, CDT scores indicating cognitive impairment were five times higher among those with low serum vitamin B12 concentrations. For the other variables, there was a positive association between age, being widowed, a low educational level and central nervous system drugs. Being single, living with children and living alone were protective factors for cognitive impairment.

Conclusions

Although cognitive impairment was positively associated with old age, being widowed and low educational level in this population, the only nutritional variable positively associated with cognitive impairment was a low vitamin B12 concentration.
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Metadaten
Titel
Nutritional Status and Cognitive Impairment among the Very Old in a Community Sample from Southern Brazil
verfasst von
João Senger
N. M. Bruscato
B. Werle
E. H. Moriguchi
M. P. Pattussi
Publikationsdatum
01.08.2019
Verlag
Springer Paris
Erschienen in
The journal of nutrition, health & aging / Ausgabe 10/2019
Print ISSN: 1279-7707
Elektronische ISSN: 1760-4788
DOI
https://doi.org/10.1007/s12603-019-1230-x

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