PMID: 20137281Feb 9, 2010Paper

A cross-sectional study on the visual disability of the residents in 2006 in Henan province, China

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
Yin-yin LiShao-jun Yan

Abstract

To explore the status on visual disability and the leading causes in residents in Henan Province. It was a cross-sectional study and a part of the National Epidemiological Study on the disability in 2006. Sample size 120 000 was assigned to Henan study by the protocol of the National epidemiological study on the disability. Stratified, equal interval, proportional probability; four-stage sampling was adopted. Survey teams were organized, and survey personnel was trained in the sampled counties and cities. Visual disabled persons were screened by home to home visit and confirmed by ophthalmologists. 130 415 persons in 36 923 households were studied. 1973 persons were confirmed to have the visual disability, the prevalence was 1.51%. Among them, 1376 persons just suffer from the visual disability (simple visual disability), 579 persons had multiple disability including the visual disability (multiple disability). Among them, 643 persons (0.49%) were blindness, 1330 persons (1.02%) were low vision. The age of the most of the persons with visual disability was more than 50 years old. The prevalence of the simple visual disability in male and female was 0.77% and 1.36% respectively and had significant statistical difference (chi(2) ...Continue Reading

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