Vitamin D Nutritional Status of Women Living on a Solitary Island in Japan : A Population-Based Study
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概要
- 論文の詳細を見る
Objective : Serum 25-hydroxyvitamin D [25(OH)D] is a vitamin D metabolite and a good indicator of vitamin D nutritional status. Low 25(OH)D levels accelerate age-related bone loss in women. The aim of this study was to assess 25(OH)D levels using population-based samples from women in a community in Japan. Subjects and Methods : Of all 187 adult women living on a solitary island (Niigata, Japan), 150 (80.2%) were enrolled in a cross-sectional study in early June 1998. After excluding 6 subjects who were undergoing treatment for osteoporosis, 144 female subjects were analyzed. Serum 25(OH)D_2 and 25(OH)D_3 were determined by high-performance liquid chromatography. The sum of 25(OH)D_2 and 25(OH)D_3 was calculated, yielding 25(OH)D, for which a concentration of less than 30 nmol/L was defined as vitamin D insufficiency. Demographic data such as age, height, weight, and body mass index (BMI) were also recorded. Results : The average age of the subjects was 61.3 years (SD 12.8), ranging from 21 to 87. The average concentrations of 25(OH)D_2 and 25(OH)D_3 were 0.5 nmol/L (SD 3.2) and 64.6 nmol/L (SD 17.6), respectively. The number of subjects with 25(OH)D concentration less than 30 nmol/L was 4 of 149 (2.7%). Serum 25(OH)D concentrations were not significantly correlated with age (r=-0.065, p=0.441) or BMI (r=0.086, p=0.310). Conclusion : The present population-based study confirms adequate levels of 25(OH)D and low prevalence of vitamin D insufficiency in Japanese women. Further research should be directed toward clarifying which dietary factors determine vitamin D nutrition.
- 日本衛生学会の論文
著者
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Endoh Kazuo
Department Of Atomic Science And Nuclear Engineering Faculty Of Engineering Hokkaido University
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Yamamoto Mitsuru
Department Of Rehabilitation Saitama Medical Center Saitama Medical School
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Yamamoto Masaharu
Department Of Community Preventive Medicine Niigata University Graduate School Of Medical And Dental
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Nakamura Kazutoshi
Division Of Social And Environmental Medicine Department Of Community Preventive Medicine Niigata Un
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Nakamura Kazutoshi
The Reserch Institute Of Electrical Communication Tohoku University
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Nakamura Kazutoshi
Department Of Community Preventive Medicine Graduate School Of Medical And Dental Sciences Niigata U
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NASHIMOTO Mitsue
Department of Nursing, Niigata University of Health and Welfare
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Yamamoto Masaharu
Department Of Community Preventive Medicine Graduate School Of Medical And Dental Sciences Niigata U
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Nashimoto Mitsue
Department Of Nursing Niigata University Of Health And Welfare
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Yamamoto Masaharu
Department Community Preventive Medicine Niigata University Graduate School Of Medical And Dental Sc
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