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ORIGINAL ARTICLE
Year : 2016  |  Volume : 21  |  Issue : 1  |  Page : 75

The relationship between Vitamin D, clinical outcomes and mortality rate in ICU patients: A prospective observational study


1 Food Security Research Center; Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Anesthesiology and Critical Care, Anesthesiology and Critical Care Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
3 Department of Epidemiology and Biostatistics, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
4 Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Gholamreza Askari
Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1735-1995.189692

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Background: According to the high prevalence of Vitamin D deficiency, a few studies have been conducted to clarify the relationship between 25-hydroxyvitamin D (25(OH)D) and clinical outcomes in critically ill patients. The objective of this study was to determine this probable association. Materials and Methods: Serum 25(OH)D, C-reactive protein, malnutrition measurements, and Intensive Care Unit (ICU)-acquired infection from 185 patients in ICU were assessed in the first 24 h of admission and they were followed for the other outcomes. Results: About 93.5% of patients were classified as deficient and insufficient while the others were categorized in sufficient group. 25(OH)D status was not significantly associated with mortality rate (P = 0.66), and no significant differences in ventilation time were observed (P = 0.97). Sufficient group left the ICU sooner, but the difference was not significant (P = 0.75). Besides the results of relationship between 25(OH)D concentration and nutritional status (P = 0.69) were not significant. In addition, sufficient group suffered from infection more than insufficient patients, but this relationship was not significant (P = 0.11). Conclusion: In this study, we found that 25(OH)D insufficiency is common in ICU patients, but no significant association between low 25(OH)D levels and ICU outcomes were observed. Hence, because of vital roles of Vitamin D in human's body, comprehensive study should conduct to determine the decisive results.


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