Risk Factors Associated with Vitamin D Deficiency among Women Office Workers

Kwon, Mi Young; Yang, Sook Ja

doi:10.5932/jkphn.2017.31.1.84

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…A previous study reported that South Korean nurses work long hours, and 64.9% of nurses have low levels of physical activity [ 32 ]. Additionally, many women likely inhibit the synthesis of vitamin D in their skin by using sunscreen [ 33 ].…”

Section: Discussionmentioning

confidence: 99%

Vitamin D deficiency and associated factors in south Korean childbearing women: a cross-sectional study

et al. 2021

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Background Adequate levels of vitamin D are important for women of childbearing age as vitamin D helps maintain the pregnancy and ensures proper maternal and fetal bone metabolism and fetal skeletal development. However, vitamin D deficiency is a health problem prevalent in women of all ages, worldwide. This study aimed to determine the current status of serum vitamin D levels and the risk factors for vitamin D deficiency among South Korean nurses of childbearing age. Methods Serum levels of 25-hydroxyvitamin D (25[OH]D) were measured in 1594 registered nurses aged 20 to 45 years who are participants in an ongoing prospective cohort study of the Korean Nurses’ Health Study initiated in 2013. The participants completed surveys about demographic and occupational characteristics and physical and psychological health. We examined associations with vitamin D deficiency through multivariable logistic regression analysis. Results The average blood 25(OH) D concentration of the participants was 12.92 ng/mL (4.0–63.4 ng/mL), while the prevalence of vitamin D deficiency (< 20 ng/mL) was 89% (1419/1594). Multivariable logistic regression showed that significant risk factors for vitamin D deficiency included month of sampling (there was a lower level of vitamin D deficiency in winter than in spring, summer, or fall), age (women in their 20s had a lower vitamin D level than those in their 30s and 40s), and stress symptoms. Vitamin D levels were not associated with body mass index, physical activity, and depressive symptoms. Conclusions This study showed a high prevalence of vitamin D deficiency in Korean female nurses. Serum levels of vitamin D were associated with age and season. Vitamin D deficiency should be recognized as one of the primary health concerns among young women. More proactive actions, such as vitamin D supplements and food fortification, are needed to improve vitamin D deficiency in high-risk groups.

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Section: Discussionmentioning

confidence: 99%

Vitamin D deficiency and associated factors in south Korean childbearing women: a cross-sectional study

et al. 2021

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Vitamin D analysis in the Korean total diet study and UV/sun light irradiated mushrooms

Lee¹,

Roh²,

Lee³

et al. 2023

Korean J. Food Preserv.

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This study was conducted to evaluate vitamin D intake of Koreans in a total diet study (TDS) and to determine the effect of irradiation on vitamin D synthesis in mushrooms. For analysis, sample were saponified and extracted with hexane, and vitamin D was quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Based on the validation results, the recovery of the National Institute of Standards and Technology (NIST) standard reference sample (SRM) 1849a was 96.7% and the z-score of −1.6 was obtained by the Food Analysis Performance Assessment Scheme (FAPAS) proficiency test (PT) 21115. Vitamin D2 was not detected in any samples, and the highest level of vitamin D3 was detected in mackerel and anchovies ranging from 24.2 to 120.2 μg/kg. The mean daily intake of vitamin D was 0.99 μg/day, as estimated from the vitamin D contents of the analyzed foods and their corresponding intake. The adequate intake (AI) of vitamin D based on the Dietary reference intakes for Koreans provided by the Ministry of Health and Welfare is 5-15 μg/day for Koreans aged 6 to 75 years. Compared with this AI, vitamin D intake of Koreans estimated in this study was inadequate. For that, the increased vitamin D content in ultraviolet (UV)/sun light irradiated mushrooms warrants further research to increase vitamin D intake of Koreans through diet.

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Risk Factors Associated with Vitamin D Deficiency among Women Office Workers

Cited by 2 publications

References 12 publications

Vitamin D deficiency and associated factors in south Korean childbearing women: a cross-sectional study

Vitamin D deficiency and associated factors in south Korean childbearing women: a cross-sectional study

Vitamin D analysis in the Korean total diet study and UV/sun light irradiated mushrooms

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