Outdoor Air Pollution and Pterygium in Korea.
10.3346/jkms.2017.32.1.143
- Author:
Ki Woong LEE
1
;
Yoon Hyeong CHOI
;
Sung Ha HWANG
;
Hae Jung PAIK
;
Mee Kum KIM
;
Won Ryang WEE
;
Dong Hyun KIM
Author Information
1. Department of Ophthalmology, Gachon University Gil Medical Center, Incheon, Korea. amidfree@gmail.com
- Publication Type:Original Article
- Keywords:
Air Pollution;
Pterygium;
Association;
Recurrence;
PM₁₀
- MeSH:
Adult;
Aging;
Air Pollutants;
Air Pollution*;
Education;
Humans;
Korea*;
Logistic Models;
Male;
Myopia;
Nitrogen Dioxide;
Nutrition Surveys;
Ozone;
Particulate Matter;
Pterygium*;
Recurrence;
Slit Lamp;
Solar System;
Sulfur Dioxide
- From:Journal of Korean Medical Science
2017;32(1):143-150
- CountryRepublic of Korea
- Language:English
-
Abstract:
We investigated relationships between outdoor air pollution and pterygium in Korean adults. This study includes 23,276 adults in population-based cross-sectional data using the Korea National Health and Nutrition Examination Survey 2008–2011. Pterygium was assessed using slit lamp biomicroscopy. Air pollution data (humidity, particulate matter with aerodynamic diameter less than 10 μm [PM₁₀], ozone [O₃], nitrogen dioxide [NO₂], and sulfur dioxide levels [SO₂]) for 2 years preceding the ocular examinations were acquired. Associations of multiple air pollutants with pterygium or pterygium recurrence after surgery were examined using multivariate logistic models, after adjusting for several covariates. Distributed lag models were additionally used for estimating cumulative effects of air pollution on pterygium. None of air pollution factors was significantly associated with pterygium or pterygium recurrence (each P > 0.05). Distributed lag models also showed that air pollution factors were not associated with pterygium or pterygium recurrence in 0-to-2 year lags (each P > 0.05). However, primary pterygium showed a weak association with PM₁₀ after adjusting for covariates (odds ratio [OR] 1.23; [per 5 μg/m³ PM₁₀ increase]; P = 0.023). Aging, male sex, and greater sun exposure were associated with pterygium, while higher education level and myopia were negatively associated with pterygium (each P ≤ 0.001). Male sex and myopia were negatively associated with pterygium recurrence (each P < 0.05). In conclusion, exposure to higher PM10 levels was associated with primary pterygium, although this study observed no significant association between air pollution and overall pterygium or pterygium recurrence in Korean adults.
