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Open AccessArticle

Prevalence, Causes and Social Factors of Visual Impairment among Chinese Adults: Based on a National Survey

by 1,2, 1, 1, 1,2 and 1,2,*
1
Institute of Population Research, Peking University, Beijing 100871, China
2
APEC Health Science Academy, Peking University, Beijing 100871, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2017, 14(9), 1034; https://doi.org/10.3390/ijerph14091034
Received: 11 August 2017 / Revised: 27 August 2017 / Accepted: 6 September 2017 / Published: 8 September 2017
Visual impairment has become a global challenge, especially for developing countries. This study aims to estimate the prevalence, causes and social factors of visual impairment among Chinese adults. Data were from a nationally representative population-based cross-sectional study. The study population were 1,909,199 non-institutionalized adults aged 18 years and older in mainland China. In the survey, low vision and blindness were checked by ophthalmologists according to the WHO best-corrected visual acuity (BCVA) criteria. Population weighted numbers and prevalence of low vision and blindness with 95% confidence intervals (CIs) were estimated where appropriate. Multivariable logistic regression analysis was used to identify the social factors of visual impairment. The weighted prevalence of visual impairment was 17.17 (95% CI, 16.84–17.50) per 1000 Chinese adults aged 18 years and older. Cataract (57.35%), disorders of choroid and retina (9.80%), and disorders of cornea (6.49%) contributed more than 70 percent to the visual impairment in Chinese adults. Older age groups, young or middle-aged male adults, female elders, illiterate, rural dwellers, non-eastern residents, singles, unemployment, and from family with lower income were associated with visual impairment. More efforts are warranted to enhance treatment and rehabilitation among people with eye disorders to prevent visual impairment. View Full-Text
Keywords: visual impairment; blindness; low vision; China; prevalence; cause; social factors visual impairment; blindness; low vision; China; prevalence; cause; social factors
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MDPI and ACS Style

Guo, C.; Wang, Z.; He, P.; Chen, G.; Zheng, X. Prevalence, Causes and Social Factors of Visual Impairment among Chinese Adults: Based on a National Survey. Int. J. Environ. Res. Public Health 2017, 14, 1034. https://doi.org/10.3390/ijerph14091034

AMA Style

Guo C, Wang Z, He P, Chen G, Zheng X. Prevalence, Causes and Social Factors of Visual Impairment among Chinese Adults: Based on a National Survey. International Journal of Environmental Research and Public Health. 2017; 14(9):1034. https://doi.org/10.3390/ijerph14091034

Chicago/Turabian Style

Guo, Chao; Wang, Zhenjie; He, Ping; Chen, Gong; Zheng, Xiaoying. 2017. "Prevalence, Causes and Social Factors of Visual Impairment among Chinese Adults: Based on a National Survey" Int. J. Environ. Res. Public Health 14, no. 9: 1034. https://doi.org/10.3390/ijerph14091034

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