Revista Egitania Sciencia - Volume 16 | ARTICLE


Author: Ana Teresa Domingues Gonçalves, Andreia Raquel Fernandes de Oliveira, António José Andrade Pereira, Jerusa Vieira Delindro, António José Gonçalves Fernandes e Juliana Almeida-de-Souza

Publication: Revista Egitania Sciencia - Volume 16

This study aims to verify whether there is a relationship between the calcium, sodium and protein intake and the calcium urinary excretion, as well as to investigate whether elderly patients with pathologies show urine calcium differences. A quantitative, observational, cross-sectional analytical study was carried out based on a sample of residents in nursing homes in the town of Bragança, Portugal. Personal and anthropometric data and information about the existence of pathologies were collected. For the consumption of micro and macronutrients a 24 hour recall was applied and for evaluation of urinary calcium 24 hour urine was collected. Data treatment involved the use of SPSS 21.0 and Wilcoxon, Spearman and Mann-Whitney-Wilcoxon tests. The results of this study show that most elderly consume sodium and protein above the recommended intake and calcium below the recommended level. Pathologies and calcium excretion were not related. Also, it was found that the calcium intake and excretion were not correlated. The study of the association between calcium excretion and sodium and protein intake revealed a positive but weak correlation. It is concluded that, in addition to controlling the calcium intake in institutionalized elderly, it becomes necessary to adjust the amounts of sodium and protein intake to minimize the loss of calcium in the urine.

Keywords: Ingestion, Excretion, Calcium, Elderly, Bragança

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