Vitamin D status and associated occupational factors in Korean wage workers: data from the 5th Korea national health and nutrition examination survey (KNHANES 2010–2012)

Jeong, Harin; Hong, Sujin; Heo, Yunjeong; Chun, Hosun; Kim, Daeseong; Park, Jongtae; Kang, Mo‐Yeol

doi:10.1186/s40557-014-0028-x

Cited by 44 publications

(51 citation statements)

References 48 publications

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“…The prevalence of vitamin D deficiency was highest in managers, professionals, and related workers compared with skilled agricultural, forestry, and fishery workers. These results are consistent with previous studies in Korea [3,28] and other countries [29][30][31]. This result may be because subjects who are classified as managers, professionals, and related workers are usually indoors and do not receive adequate sunlight exposure.…”

Section: Discussionsupporting

confidence: 92%

1049 The prevalence of Vitamin D deficiency among cancer survivors in a nationwide survey of the Korean population

Han¹,

Oh²,

Park³

et al. 2015

European Journal of Cancer

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Section: Discussionsupporting

confidence: 92%

1049 The prevalence of Vitamin D deficiency among cancer survivors in a nationwide survey of the Korean population

Han¹,

Oh²,

Park³

et al. 2015

European Journal of Cancer

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“…The present study showed that higher BMI is associated with lower basal 25OHD in the sample as a whole. This is consistent with the reported in the literature negative association between 25OHD levels and obesity [59][60][61][62][63][64][65][66]. This effect was not evident for each gender group; this may be due to a small sample size in each group.…”

Section: Vitamin D Deficiency and Night Shift Work O R I G I N A L P supporting

confidence: 92%

Determinants of vitamin D status among Jordanian employees: Focus on the night shift effect

Alefishat¹,

Farha²

2016

Int J Occup Med Environ Health

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Objectives: To assess the association between night work and 25-hydroxy vitamin D (25OHD) levels, and to evaluate effect of potential risk factors on 25OHD levels. Material and Methods: A total of 140 adult Jordanian employees were recruited. Demographic, lifestyle and working patterns data were documented through a well-structured questionnaire. Vitamin D status was assessed by measuring circulating concentrations of 25OHD. Results: Mean 25OHD level was 23.8 ng/ml. No significant difference was found in 25OHD levels between the summer and winter (p = 0.46), or between males and females (p = 0.35). The female night workers had significantly lower serum 25OHD levels compared to the female day workers (p = 0.01). No significant difference in serum 25OHD levels was found between the night and day male workers (p = 0.25). The number of night shifts/month was negatively correlated with 25OHD levels in both the males and females (p = 0.01 and p = 0.007, respectively). Age was positively correlated with 25OHD levels in both the males and females (p = 0.02 and p = 0.001, respectively). Body mass index was negatively associated with 25OHD levels in the whole sample (p = 0.03), but not within each gender group (p = 0.21 for the males and p = 0.09 for the females). Smoking had no significant association with 25OHD levels (p = 0.99 for the males and p = 0.22 for the females). Conclusions: Our results suggest that women working night shifts are at higher risk of 25OHD deficiency, and, consequently, of other health problems linked to 25OHD deficiency. Int J Occup Med Environ Health 2016;29(5):859-870

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“…A population study revealed that 25(OH)D deficiency (<20 ng/mL) was present in 69.5% of male and 83.1% of female workers aged 20 to 65 years. [41] This may be related to the high latitude (34°–38° N) of Korea, and reduced levels of time spent outdoors (owing to high educational pressure and indoor working conditions). [41–43] Considering the high prevalence of myopia and deficiency of vitamin D in the Korean population, it would be useful to understand the associations of vitamin D deficiency and daily sun exposure time with myopia in this population.…”

Section: Introductionmentioning

confidence: 99%

Serum 25-hydroxyvitamin D level is associated with myopia in the Korea national health and nutrition examination survey

Kwon

Choi

2016

Medicine

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The aim of this article was to assess the associations of serum 25-hydroxyvitamin D [25(OH)D] and daily sun exposure time with myopia in Korean adults.This study is based on the Korea National Health and Nutrition Examination Survey (KNHANES) of Korean adults in 2010–2012; multiple logistic regression analyses were performed to examine the associations of serum 25(OH)D levels and daily sun exposure time with myopia, defined as spherical equivalent ≤–0.5D, after adjustment for age, sex, household income, body mass index (BMI), exercise, intraocular pressure (IOP), and education level. Also, multiple linear regression analyses were performed to examine the relationship between serum 25(OH)D levels with spherical equivalent after adjustment for daily sun exposure time in addition to the confounding factors above.Between the nonmyopic and myopic groups, spherical equivalent, age, IOP, BMI, waist circumference, education level, household income, and area of residence differed significantly (all P < 0.05). Compared with subjects with daily sun exposure time <2 hour, subjects with sun exposure time ≥2 to <5 hour, and those with sun exposure time ≥5 hour had significantly less myopia (P < 0.001). In addition, compared with subjects were categorized into quartiles of serum 25(OH)D, the higher quartiles had gradually lower prevalences of myopia after adjustment for confounding factors (P < 0.001). In multiple linear regression analyses, spherical equivalent was significantly associated with serum 25(OH)D concentration after adjustment for confounding factors (P = 0.002).Low serum 25(OH)D levels and shorter daily sun exposure time may be independently associated with a high prevalence of myopia in Korean adults. These data suggest a direct role for vitamin D in the development of myopia.

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Vitamin D status and associated occupational factors in Korean wage workers: data from the 5th Korea national health and nutrition examination survey (KNHANES 2010–2012)

Cited by 44 publications

References 48 publications

1049 The prevalence of Vitamin D deficiency among cancer survivors in a nationwide survey of the Korean population

1049 The prevalence of Vitamin D deficiency among cancer survivors in a nationwide survey of the Korean population

Determinants of vitamin D status among Jordanian employees: Focus on the night shift effect

Serum 25-hydroxyvitamin D level is associated with myopia in the Korea national health and nutrition examination survey

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