The Relationship Between Disability-Adjusted Life Years of Cataracts and Ambient Erythemal Ultraviolet Radiation in China
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- Zhu Min
- School of Public Health, China Medical University
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- Yu Jiaming
- Ophthalmology Department, The Fourth Affiliated Hospital of China Medical University
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- Gao Qian
- School of Public Health, China Medical University
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- Wang Yang
- School of Public Health, China Medical University
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- Hu Liwen
- School of Public Health, China Medical University
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- Zheng Yang
- School of Public Health, China Medical University
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- Wang Fang
- School of Public Health, China Medical University
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- Liu Yang
- School of Public Health, China Medical University
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Background: Cataracts are one of the major public health problems worldwide. Ultraviolet radiation (UVR) is one of the risk factors for cataract development. We analyzed the relationship between disability-adjusted life year (DALY) rates of cataracts and UVR exposure in China.<BR>Methods: DALY rates of cataracts and UVR exposure in 31 regions of China were calculated based on data from the Second China National Sample Survey on Disability and the United States’ National Aeronautics and Space Administration database. The relationship between the DALY rates of cataracts and UVR was estimated by Spearman rank correlation analysis and linear regression analysis.<BR>Results: The elderly (≥65 years) had higher DALY rates of cataracts than the whole population. The DALY rate of cataracts in the agricultural population was higher than that observed in the non-agricultural population. The DALY rates of cataracts were positively associated with UVR The DALY rates of cataracts in regions with higher UVR were higher than those in regions with lower UVR. An increase in the daily ambient erythemal UVR of 1000 J/m2 was associated with an increase in the DALY rates of cataracts by 92 DALYs/100 000 (R2 = 0.676) among the whole population, 34 DALYs/100 000 among the population <65 years old (R2 = 0.423), 607 DALYs/100 000 among the population aged 65–74 years (R2 = 0.617), and by 1342 DALYs/100 000 among the population ≥75 years old (R2 = 0.758).<BR>Conclusions: DALY rates of cataracts increased with increases in UVR exposure in 31 regions of China. Greater exposure to UVR increases the disease burden of cataracts in the whole population, especially in the elderly and among the agricultural population.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ Ｅｐｉｄｅｍｉｏｌｏｇｙ
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Ｊｏｕｒｎａｌ ｏｆ Ｅｐｉｄｅｍｉｏｌｏｇｙ 25 (1), 57-65, 2015
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