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Vitamin D insufficiency in Korea--a greater threat to younger generation: the Korea National Health and Nutrition Examination Survey (KNHANES) 2008

 Han Seok Choi  ;  Han Jin Oh  ;  Sung-Kil Lim  ;  Yumie Rhee  ;  Kwang Joon Kim  ;  Kyoung Min Kim  ;  Jung Gu Kim  ;  Woong Hwan Choi  ;  Hoon Choi 
 Journal of Clinical Endocrinology & Metabolism, Vol.96(3) : 643-651, 2011 
Journal Title
 Journal of Clinical Endocrinology & Metabolism 
Issue Date
CONTEXT: Vitamin D status in the Korean population has not been adequately determined. OBJECTIVE: To investigate the vitamin D status and the prevalence of vitamin D insufficiency in the Korean population, and also identify the predictors for vitamin D insufficiency in Korea. DESIGN AND SETTING: The Fourth Korea National Health and Nutrition Examination Surveys (KNHANES IV) in the Korean population conducted in 2008. PARTICIPANTS: 3,047 males and 3,878 females aged 10 years and older selected in all the 16 administrative districts of South Korea. MAIN OUTCOME MEASURES: Serum 25-hydroxyvitamin D [25(OH)D] levels and the prevalence of vitamin D insufficiency defined as serum 25(OH)D level of less than 20 ng/ml. RESULTS: Vitamin D insufficiency was found in 47.3% of males and 64.5% of females, whereas only 13.2% of male and 6.7% of female population had a serum 25(OH)D level of greater than 30 ng/ml. Vitamin D insufficiency was most prevalent in the age of 20-29, with a rate of 65.0% in males and 79.9% in females, and least prevalent in the age of 60-69 in males and 50-59 in females. Those who work usually indoors were more predisposed to vitamin D insufficiency. In the adult population, predictors for vitamin D insufficiency included young age groups, spring and winter seasons, living in an urban area, and indoor occupations. CONCLUSIONS: Vitamin D insufficiency is very common, and it is now a greater threat to the younger generation in Korea. Current recommendations for vitamin D intakes for Koreans are inadequate, especially for the youth.
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실)
Yonsei Authors
김경민(Kim, Kyung Min) ; 김광준(Kim, Kwang Joon) ; 이유미(Rhee, Yumie) ; 임승길(Lim, Sung Kil) ; 최한석(Choi, Han Seok)
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