Demographic and Lifestyle Factors Associated with Vitamin D Status in Pregnant Japanese Women
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- SHIRAISHI Mie
- Department of Midwifery and Women’s Health, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo
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- HARUNA Megumi
- Department of Midwifery and Women’s Health, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo
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- MATSUZAKI Masayo
- Department of Midwifery and Women’s Health, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo
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- MURAYAMA Ryoko
- Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo
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抄録
Maternal vitamin D deficiency causes pregnancy complications and delayed skeletal development in offspring. This study aimed at identifying demographic and lifestyle factors associated with vitamin D status in pregnant Japanese women. A total of 284 healthy pregnant women in the second trimester were recruited at a university hospital in Tokyo, between June 2010 and July 2011. Serum 25-hydroxyvitamin D (25(OH)D) concentrations were measured using chemiluminescent immunoassay. We assessed vitamin D intake using a self-administered diet history questionnaire and asked participants about lifestyle variables, including daily duration of sunlight exposure and supplement use. The mean (SD) serum 25(OH)D concentration was 9.8 (4.7) ng/mL. Almost 60% of the participants had severe vitamin D deficiency (measured as 25(OH)D<10 ng/mL). Multiple regression analysis showed that multigravidity, pre-pregnancy non-underweight status, higher energy-adjusted vitamin D intake, and use of vitamin D supplements were correlated with higher serum 25(OH)D concentrations (β=0.245, β=−0.119, β=0.226, and β=0.197, respectively). In the summer investigation, women with longer durations of sunlight exposure had significantly higher serum 25(OH)D concentrations (β=0.201) that were unrelated to the factors outlined previously. In the winter investigation, women with a high education level had higher serum 25(OH)D concentrations than others (β=0.330). Our results would be useful for identifying pregnant women at a high risk of low vitamin D status, such as primigravidae and those with pre-pregnancy underweight status, low education level, low vitamin D intake, and short durations of sunlight exposure.
収録刊行物
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- Journal of Nutritional Science and Vitaminology
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Journal of Nutritional Science and Vitaminology 60 (6), 420-428, 2014
一般財団法人 学会誌刊行センター
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詳細情報 詳細情報について
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- CRID
- 1390282681300743296
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- NII論文ID
- 130005060912
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- NII書誌ID
- AA00703822
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- ISSN
- 18817742
- 03014800
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- NDL書誌ID
- 026008017
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- PubMed
- 25866306
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 使用不可