Lipids in health and disease · 2018
Association between pterygium, sun exposure, and serum 25-hydroxyvitamin in a nationally representative sample of Korean adults.
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Chun Yoon Hong, Paik Ji-Sun, Oh Ju Heun, Kim Hyun-Seung, Na Kyung-Sun
Аннотация
PURPOSE: Ultraviolet-B (UVB) light exposure is the major risk factor for developing a pterygium, and serum 25-hydroxyvitamin D (25(OH)D) level is an objective measure of UVB light exposure. In this study, we investigated the association between pterygium, sun exposure, and serum 25(OH)D.
METHODS: This population-based, cross-sectional study comprised 12,258 adults (aged ≥19 years) participating in the fifth annual Korea National Health and Nutrition Examination Survey from 2010 to 2012. The enrolled subjects underwent interviews, clinical examinations, and laboratory investigations. The serum 25(OH)D levels were measured, and pterygium was examined by using a slit lamp. We used three adjusted logistic regression models and selected covariates as potential confounders.
RESULTS: The overall prevalence of pterygium was 7.09, and 53.1% of these subjects were women. The prevalence of pterygium was higher in elderly subjects and those who lived at low latitudes. In multivariate analysis with adjustment for confounding factors, subjects with a serum 25(OH)D level > 30 ng/mL, 25-30 ng/mL, and 15-20 ng/mL had an odds ratio (OR) (95% confidence interval [CI]) of 1.565 (1.035-2.366), 1.545 (1.086-2.198), 1.8 (1.358-2.386), and 1.535 (1.216-1.938), respectively, compared to those with a serum 25(OH)D level < 15 ng/mL. Subjects with a daily sun exposure > 5 h had an OR (95% CI) of 1.761 (1.395-2.223) compared to subjects with a daily sun exposure < 2 h.
CONCLUSION: The present study provides epidemiological evidence of an association of daily sun exposure and serum 25(OH)D levels with pterygium in a representative Korean population.
METHODS: This population-based, cross-sectional study comprised 12,258 adults (aged ≥19 years) participating in the fifth annual Korea National Health and Nutrition Examination Survey from 2010 to 2012. The enrolled subjects underwent interviews, clinical examinations, and laboratory investigations. The serum 25(OH)D levels were measured, and pterygium was examined by using a slit lamp. We used three adjusted logistic regression models and selected covariates as potential confounders.
RESULTS: The overall prevalence of pterygium was 7.09, and 53.1% of these subjects were women. The prevalence of pterygium was higher in elderly subjects and those who lived at low latitudes. In multivariate analysis with adjustment for confounding factors, subjects with a serum 25(OH)D level > 30 ng/mL, 25-30 ng/mL, and 15-20 ng/mL had an odds ratio (OR) (95% confidence interval [CI]) of 1.565 (1.035-2.366), 1.545 (1.086-2.198), 1.8 (1.358-2.386), and 1.535 (1.216-1.938), respectively, compared to those with a serum 25(OH)D level < 15 ng/mL. Subjects with a daily sun exposure > 5 h had an OR (95% CI) of 1.761 (1.395-2.223) compared to subjects with a daily sun exposure < 2 h.
CONCLUSION: The present study provides epidemiological evidence of an association of daily sun exposure and serum 25(OH)D levels with pterygium in a representative Korean population.