Impact of Geographic Location on Vitamin D Status and Bone Mineral Density

Kyung-Jin Yeum, Byeng Chun Song and Nam-Seok Joo
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Kyung-Jin Yeum: Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University, Chungju-si 27478, Korea
Byeng Chun Song: Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University, Chungju-si 27478, Korea
Nam-Seok Joo: Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon-si 16499, Korea

IJERPH, 2016, vol. 13, issue 2, 1-11

Abstract: A significant decline of serum 25-hydroxyvitamin D concentration [25(OH)D] with increasing latitude has been reported only for Caucasians. To determine the association between serum 25(OH)D and geographic location and its impact on bone mineral density (BMD) in an Asian population, a total of 17,508 subjects (8910 men and 8598 women) from the 2008–2010 Korea National Health and Nutrition Examination Survey (KNHANES) were stratified into four age groups and analyzed for 25(OH)D and BMD according to geographic location (South, 33° N–35° N; Middle, 36° N; North, 37° N–38° N). Mean 25(OH)D were 47.7 and 41.2 nmol/L; calcium intake, 564.9 & 442.3 mg/d; femoral neck BMD, 0.829 & 0.721 g/cm 2 ; and lumbar spine BMD, 0.960 & 0.918 g/cm 2 for men and women, respectively. Both men and women living in the South had significantly higher 25(OH)D and femoral neck BMD for those ?50 years old. Lumbar spine BMD was significantly higher in men ?50 years old, and for women 10–29 & 50–69 years old living in the South. A 1 or 2 degree difference in latitude has a significant effect on serum 25(OH)D and BMD in this low vitamin D status population. Thus, consideration of geographic location for a recommendation of vitamin D intake may be necessary.

Keywords: bone mineral density; vitamin D status; geographic location; serum 25-hydroxyvitamin D (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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