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2X increased chance of anemia (low iron) associated with low vitamin D – Sept 2013

Non-Linear Relationship between Serum 25-Hydroxyvitamin D and Hemoglobin in Korean Females: The Korean National Health and Nutrition Examination Survey 2010-2011.

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Han SS, Kim M, Kim H, Lee SM, Oh YJ, Lee JP, Kim S, Joo KW, Lim CS, Kim YS, Kim
Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.

BACKGROUND: Anemia and vitamin D deficiency are both important health issues; however, the nature of the association between vitamin D and either hemoglobin or anemia remains unresolved in the general population.

METHODS: Data on 11,206 adults were obtained from the fifth Korean National Health and Nutritional Examination Survey. A generalized additive model was used to examine the threshold level for relationship between serum 25-hydroxyvitamin D [25(OH)D] and hemoglobin levels. A multivariate logistic regression for anemia was conducted according to 25(OH)D quintiles. All analyses were stratified according to sex and menstrual status.

RESULTS: The generalized additive model confirmed a threshold 25(OH)D level of 26.4 ng/mL (male, 27.4 ng/mL; premenopausal females, 11.8 ng/mL; postmenopausal females, 13.4 ng/mL). The threshold level affected the pattern of association between 25(OH)D and anemia risk: the odds ratio of the 1(st) quintile but not the 2(nd), 3(rd), and 4(th) quintiles were significantly different from the 5(th) quintile in both premenopausal and postmenopausal females, however there was no obvious trend in males.

CONCLUSIONS: This population-based study demonstrated a non-linear relationship with a threshold effect between serum 25(OH)D and hemoglobin levels in females. Further interventional studies are warranted to determine whether the appropriate level of hemoglobin can be achieved by the correction of vitamin D deficiency.

PMID: 24015265


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Increased chance of anemia
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Attached files

ID Name Comment Uploaded Size Downloads
2976 Increased chance of anemia.jpg admin 10 Sep, 2013 14:49 19.24 Kb 917
2975 Hemo F2D.jpg admin 10 Sep, 2013 14:49 27.67 Kb 962
2974 Hemo F2C.jpg admin 10 Sep, 2013 14:48 29.78 Kb 999
2973 Hemo F1.jpg admin 10 Sep, 2013 14:48 60.98 Kb 1013
2972 Vit D and hemoglobin.pdf PDF 2013 admin 10 Sep, 2013 14:48 376.08 Kb 644
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