Unexpected potential protective associations between outdoor air pollution and cataracts
- Authors
- Choi, Yoon-Hyeong; Park, Su Jin; Paik, Hae Jung; Kim, Mee Kum; Wee, Won Ryang; Kim, Dong Hyun
- Issue Date
- Apr-2018
- Publisher
- SPRINGER HEIDELBERG
- Keywords
- Air pollution; Nuclear cataract; Associations; Ozone; Oxidative stress; Potential protective effect
- Citation
- ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, v.25, no.11, pp.10636 - 10643
- Journal Title
- ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
- Volume
- 25
- Number
- 11
- Start Page
- 10636
- End Page
- 10643
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3939
- DOI
- 10.1007/s11356-018-1266-1
- ISSN
- 0944-1344
- Abstract
- Air pollution is one of the biggest public health issues, and the eye is continuously exposed to multiple outdoor air pollution. However, to date, no large-scale study has assessed the relationship between air pollutants and cataracts. We investigated associations between outdoor air pollution and cataracts in the Korean population. A population-based cross-sectional study was performed using data from the Korea National Health and Nutrition Examination Survey, including 18,622 adults more than 40 years of age. The presence of cataracts and their subtypes were evaluated by ophthalmologists. Air pollution data (levels of particulate matter, ozone, nitrogen dioxide, and sulfur dioxide) for the 2 years prior to the ocular examinations were collected from national monitoring stations. The associations of multiple air pollutants with cataracts were assessed by multivariate logistic regression analyses. Sociodemographic factors and previously known risk factors for cataracts were controlled as covariates (model 1 included sociodemographic factors, sun exposure, and behavioral factors, while model 2 further included clinical factors). Higher ozone concentrations were protectively associated with overall cataract which included all subtypes [single pollutant model: 0.003 ppm increase-model 1 (OR 0.89, p = 0.014), model 2 (OR 0.87, p = 0.011); multi-pollutant model: 0.003 ppm increase-model 1 (OR 0.80, p = 0.002), model 2 (OR 0.87, p = 0.002)]. Especially, higher ozone concentrations showed deeply protective association with nuclear cataract subtype [0.003 ppm increase-single pollutant model: model 2 (OR 0.84, p = 0.006), multi-pollutant model: model 2 (OR 0.73, p < 0.001)]. Higher tropospheric ozone concentrations showed protective associations with overall cataract and nuclear cataract subtype in the Korean population.
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