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Environmental and Occupation Factors Associated with Vitamin D Deficiency in Korean Adults: The Korea National Health and Nutrition Examination Survey (KNHANES) 2010-2014

Authors
Park, HY | Lim, YH | Park, JB  | Rhie, J | Lee, SJ
Citation
International journal of environmental research and public health, 17(24). : 9166-9166, 2020
Journal Title
International journal of environmental research and public health
ISSN
1661-78271660-4601
Abstract
While exposure to sunlight is a well-documented primary source of vitamin D supply, factors leading to vitamin D deficiency vary according to population characteristics. Using nationwide data from the Korea National Health and Nutrition Examination Survey (KNHANES), we aimed to investigate a diverse range of potential factors in association with vitamin D deficiency. Overall, 21,208 participants aged >/=20 years were selected from KNHANES conducted between 2010 and 2014. The associations between various environmental and occupational factors and vitamin D deficiency (defined as serum 25-hydroxyvitamin D [25(OH)D] < 20 ng/mL) were evaluated in logistic regression models after controlling for potential covariates and also after stratification for age and sex. Under given criteria, 15,138 (71.4%) participants were vitamin D deficient. Significant associations were observed between vitamin D deficiency and average environmental temperature and radiation, weekly walking frequency, type of occupation, and shift work. When participants were stratified by age and sex, we observed greater associations of vitamin D deficiency with walking frequency among young males (odds ratio [OR] and 95% confidence interval [95% CI]: 1.24 [1.05-1.47] for those walking <5 times per week compared to those walking >/=5 times per week) and shift work (OR [95% CI]: 1.40 [1.10-1.78] for those working at night compared to those working during the day). We also observed a significant association of vitamin D deficiency with educational attainment (OR [95% CI]: 1.43 [1.09-1.89] for those with /=high school) among older group of females. This study suggests that vitamin D deficiency is related to geographical conditions and subpopulation characteristics. The age and sex-specific associations may urge the effective promotion of vitamin D supply recommendations.
Keywords

MeSH

DOI
10.3390/ijerph17249166
PMID
33302471
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Occupational & Environmental Medicine
Ajou Authors
박, 재범
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