ArticleBMJ open2017
Suboptimal vitamin D status in Korean adolescents: a nationwide study on its prevalence, risk factors including cotinine-verified smoking status and association with atopic dermatitis and asthma.
Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Article
- Assessment of nutrient intake, nutrition knowledge, and dietary habits by sports type among adolescent athletes at a physical education high school: a cross-sectional study.Clinical nutrition research · 2026Article
- Essential micronutrients in children and adolescents with a focus on growth and development: a narrative review.Journal of Yeungnam medical science · 2025Article
- Vitamin D Status among 2-18-Year-Old Romanian Pediatric Patients: A Single-Center Study.Nutrients · 2024Article
- Vitamin D Levels in Children During Winter and the Relationship Between Sunscreen and Sun Protection Behaviors.Dermatology practical & conceptual · 2023Article
- Association of blood lead level with vitamin D binding protein, total and free 25-hydroxyvitamin D levels in middle-school children.The British journal of nutrition · 2022Article
- Prevalence and Determinants of Vitamin D Deficiency in 9595 Mongolian Schoolchildren: A Cross-Sectional Study.Nutrients · 2021Article
- Air pollutants are negatively associated with vitamin D-synthesizing UVB radiation intensity on the ground.Scientific reports · 2021Article
- Dietary intake and nutritional status of Korean children and adolescents: a review of national survey data.Clinical and experimental pediatrics · 2021Article
- Editorial: Vitamin D Binding Protein, Total and Free Vitamin D Levels in Different Physiological and Pathophysiological Conditions.Frontiers in endocrinology · 2020Article
- Article
- Laboratory confirmation of the effect of occupational sun exposure on serum 25-hydroxyvitamin D concentration.Medicine · 2018Observational
- Tobacco smoke exposure is an independent predictor of vitamin D deficiency in US children.PloS one · 2018Article
- Vitamin D supplementation as a control program against latent tuberculosis infection in Korean high school students.Epidemiology and health · 2018Article
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5 authors.
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Abstract
objectiveTo determine the prevalence and risk factors for suboptimal vitamin D status in Korean adolescents and to assess its relationship with atopic dermatitis (AD) and asthma at a national level.
designThis is a cross-sectional study with data from the Korean National Health and Nutrition Examination Survey. Information regarding socioeconomic characteristics, clinical data and environmental factors was collected. Blood and urine samples were taken for vitamin D and cotinine, respectively. Descriptive and multivariable logistic regression was performed on the data.
settingSouth Korea (nationwide).
participants2515 individuals aged 10-18 years who participated in the Korean National Health and Nutrition Examination Survey from 2008 to 2011.
main outcome measuresVitamin D status was determined through measurement of serum 25-hydroxyvitamin D (25OHD). Smoking status was classified based on the urine cotinine level. Physician diagnosed with AD and asthma were assessed using a questionnaire.
resultsOverall, 73.3% of the subjects were vitamin D deficient (25OHD <20 ng/mL) and 24.4% of the subjects were vitamin D insufficient (25OHD, 20-29.9 ng/mL). Older age (p<0.001), female gender (p<0.001), urban residence (p=0.019), higher body mass index (p=0.003) and sampling in winter months (November-March) (p<0.001) were independently associated with low serum 25OHD levels. With cotinine verification, 18.2% of the participants were classified as active smokers, and 43.4% were classified as passive smokers. After adjusting for potential confounders, serum 25OHD status showed no association with AD or asthma.
conclusionVitamin D deficiency is highly prevalent in Korean adolescents. Cotinine-verified prevalence of smoking was also high, but its relationship with vitamin D deficiency was not confirmed in our study. Above all, our results provide epidemiological evidence against the association of vitamin D status with AD and asthma at the national level among Korean adolescents.
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