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The prevalence and risk factors for pterygium in South Korea: the Korea National Health and Nutrition Examination Survey (KNHANES) 2009-2010
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Eun-Young Pyo, Gui Hyeong Mun, Kyung Chul Yoon
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Epidemiol Health. 2016;38:e2016015. Published online April 29, 2016
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DOI: https://doi.org/10.4178/epih.e2016015
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Abstract
OBJECTIVES
To determine the prevalence and risk factors for pterygium in the adult Korean population of South Korea.
METHODS Data were analyzed from 9,193 participants who were 40 years of age or older from the Korea National Health and Nutrition Examination Survey (KNHANES), conducted from 2009 to 2010. Standardized slit-lamp examinations were performed by study ophthalmologists to examine the anterior segment for evidence of pterygium. Pterygium was graded clinically as T1 (atrophic), T2 (intermediate), or T3 (opaque). Every participant underwent ocular and systemic examinations, as well as interviewer-administered questionnaires. Any evidence of pterygium and observed association between the risk factors were recorded.
RESULTS The mean age of the subjects was 55.7 (±0.2) years. Of the 9,193 eligible subjects, 935 had pterygium in at least one eye. In a multivariate logistic regression analysis adjusted for age and sex, pterygium was significantly associated with rural vs. urban residence (odds ratio [OR], 1.7; 95% confidence interval [CI], 1.4 to 2.0), lower level of education (OR, 4.5; 95% CI, 3.1 to 6.6), low income (OR, 1.3; 95% CI, 1.0 to 1.8), smoking (OR, 0.7; 95% CI, 0.5 to 1.0), and more hours of sun exposure (OR, 1.5; 95% CI, 1.2 to 1.8). After adjusting for all variables, the prevalence of pterygium was significantly associated with age, sex, residence, education level, and smoking.
CONCLUSIONS This is a nationwide epidemiologic study in South Korea to assess the prevalence of and risk factors for pterygium. The overall prevalence of pterygium was 8.8% among Koreans aged 40 years or older. Older age, male gender, rural residence, lower level of education, and non-smoking were associated with the development of pterygium.
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Summary
Korean summary
이 연구는 40세이상 한국인의 군날개 유병률과 위험요인을 파악하기 위해 2009년부터 2010년까지 조사된 국민건강영양조사 자료를 이용하여 분석하였다. 한국인의 40세이상 군날개 유병률은 8.8%이었으며, 다중로지스틱 회귀분석을 통해 분석된 관련 위험요인으로는 연령, 성, 거주지역, 교육수준, 흡연이었다.
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Citations
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