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Ann Geriatr Med Res  <  Volume 20(2); 2016 <  Articles

J Korean Geriatr Soc 2016; 20(2): 102-107  https://doi.org/10.4235/jkgs.2016.20.2.102
Vitamin D Deficiency in Nursing Home Elderly in Korea
Hye Young Jung, MD1, Mu Young Kim, MD1, Jung Man Kim, MD1, Do Wi Kim, MD1, Chae Bong Kim, MS2
1Department of Family Medicine, Seoul Medical Center, 2Department of public health graduate school of Korea university
Correspondence to: Mu Young Kim, MD 
Department of Family Medicine, Seoul Medical Center, 156 Sinnae-ro, Jungnang-gu, Seoul 02053, Korea 
Tel: +82-2-2276-7941, 
Fax: +82-2-2276-8509 
E-mail: moowija@hanmail.net
Received: March 30, 2016; Revised: May 24, 2016; Accepted: June 14, 2016; Published online: June 30, 2016.
© The Korea Geriatrics Society. All rights reserved.

Abstract
"Background: Recent studies have reported that nursing home elderly (NHE) had significantly lower serum levels of 25-hydroxyvitamin D than community dwelling elderly (CDE) in several countries. However, there is no study about vitamin D deficiency in NHE in Korea so far. The aim of this study was to assess the vitamin D status in NHE and compare it with CDE in Korea.
Methods: A total of 203 patients older than 65, who had admitted to the geriatric department of Seoul Medical Center was included in this study. Through reviewing medical records, demographic data, residential type, medical and drug history, serum 25-OHD, albumin, creatinine, calcium level and other geriatric assessment results were collected. After excluding 36 subjects who had taken vitamin D supplements, anti-convulsants or steroids, the data of 33 nursing home elderly and 134 community dwelling elderly was finally analyzed.
Results: Almost 80 % of study subjects showed vitamin D deficiency (< 20 ng/mL) and 54 % was in severe vitamin D deficiency (< 10 ng/mL). The NHE had a significantly lower serum 25-OHD level than the CDE (5.47 ± 2.95 ng/ml vs14.72 ± 11.35 ng/ml , P< 0.001). After adjustment for confounding factors using multiple logistic regression analysis, the NHE showed much higher risk of severe vitamin D deficiency comparing with the CDE (odds ratio, 8.72; 95% confidence interval, 1.53 – 49.81)
Conclusion: Vitamin D deficiency was prevalent in Korean NHE. For the prevention of fall and osteoporotic fracture, vitamin D supplementation should be considered in this population."
Keywords: 25-hydroxyvitamin D , Nursing Homes , Osteoporosis , Accidental fall


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