Purpose: The objective of this study was to identify the factors related to atopic dermatitis and its prevalence among Korean adults, and to examine the relationship of vitamin D levels to AD prevalence. Methods: Combined data from the 2008-2013 Korea National Health and Nutrition Examination Survey were analyzed by using the chi-squared test and multivariable logistic regression. Results: AD prevalence among 27,860 Korean adults was 2.7% and varied significantly with age, body mass index, and vitamin D levels, as well as presence of asthma, depression, and stress. Vitamin D deficiency and insufficiency were found in 66.8% and 27.5%, respectively. Only 5.7% had sufficient vitamin D levels. Age and asthma were factors associated with an increased prevalence of AD in those with vitamin D deficiency (7.57 times and 2.87 times, respectively), and insufficiency (4.42 times and 2.58 times). However, there were no such risk factors in patients with sufficient vitamin D levels. Conclusion: This study showed that patients with higher vitamin D levels have decreased AD prevalence despite risk factors. Development of an intervention program including lifestyle improvement is suggested.
The purpose of this study was to investigate the influencing factors of atopic dermatitis in adults in South Korea by using statistical data from the Korean National Health and Nutrition Survey (KNHANES) in 2008-2013. Method : Data from 27,860 adults (older than 19 years) were analyzed by using the chi-square test and multivariable logistic regression analysis. Results : The prevalence rate of atopic dermatitis in adults was 2.7%, most (69.2%) of whom were vitamin D deficient. The influencing factors of atopic dermatitis were age, vitamin D, asthma, stress, and depression. Conclusion : The results of this study suggest that various interventions for vitamin D, asthma, stress and depression should be provided to manage atopic dermatitis.
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