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This study aimed to investigate the association between vitamin D deficiency and anemia in a hospitalized geriatric population. An observational study, at the acute care geriatric unit of Brest Hospital, France, was conducted among 226 patients aged ≥70 years consecutively hospitalized between January 22, 2010 and August 9, 2010. Vitamin D and hemoglobin levels were measured. Vitamin D deficiency was defined as a 25(OH)D level <50 nmol/L and anemia as defined by the World Health Organization. After adjustment for albuminemia, anemia was not significantly associated with vitamin D deficiency (odds ratio (OR) = 1.37; 95 % confidence interval (CI) = 0.72-2.6). But anemia was significantly associated with hypoalbuminemia (OR = 2.08; 95 % CI = 1.11-3.91). Denutrition reflected by hypoalbuminemia could be a possible confounding factor in the previously described association between anemia and vitamin D deficiency.


A Coutard, R Garlantézec, S Estivin, M Andro, A Gentric. Association of vitamin D deficiency and anemia in a hospitalized geriatric population: denutrition as a confounding factor. Annals of hematology. 2013 May;92(5):615-9

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PMID: 23242475

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