TY - JOUR
T1 - Changes in the prevalence of visual impairment due to blinding trachoma in Sichuan province, China
T2 - A comparative study between 1987 and 2006
AU - Chen, Hui
AU - Wu, Xiaoyun
AU - Wei, Min
AU - Eichner, June E.
AU - Fan, Yingchuan
AU - Zhang, Zuoming
AU - Lei, Chuntao
AU - Stone, Donald U.
AU - Yang, Jingyun
N1 - Funding Information:
We wish to thank the Disabled Person’s Federation in Sichuan province and the Blindness Prevention Office in Sichuan province for coordination and performing field work. The study was sponsored by the cooperative program of the Second National Sample Survey on Disabilities in Sichuan province, China (No.303005002164). The study was supported in part by an unrestricted grant from Research to Prevent Blindness to the University of Oklahoma, Department of Ophthalmology.
PY - 2012/2
Y1 - 2012/2
N2 - Purpose: The aim of this study was to assess the changes in the prevalence of visual impairment due to blinding trachoma in Sichuan, China between 1987 and 2006. Methods: Over 125,000 residents of Sichuan province participated in the National Sample Survey on Disabilities, conducted in both 1987 and 2006. Changes in the prevalence of visual impairment due to blinding trachoma were analyzed while accounting for other factors including gender, age and residence (urban vs. rural). Results: In 1987, blinding trachoma ranked second among the eight major visual impairment causes assessed with a prevalence of 172.9 (95% CI: 152.2196.6) per 100,000, while in 2006 it ranked eighth with a prevalence of 58.1 (95% CI: 45.573.0) per 100,000. The prevalence in 2006 decreased significantly compared to 1987 in both rural and urban areas, as well as in both genders. Furthermore, in both 1987 and 2006, visual impairment due to blinding trachoma tended to be concentrated among individuals over 40, although it was also seen in young people. Conclusion: In the past 20 years, the prevalence and percentage of visual impairment due to blinding trachoma was significantly reduced in Sichuan province, and we anticipate a further decrease in the future.
AB - Purpose: The aim of this study was to assess the changes in the prevalence of visual impairment due to blinding trachoma in Sichuan, China between 1987 and 2006. Methods: Over 125,000 residents of Sichuan province participated in the National Sample Survey on Disabilities, conducted in both 1987 and 2006. Changes in the prevalence of visual impairment due to blinding trachoma were analyzed while accounting for other factors including gender, age and residence (urban vs. rural). Results: In 1987, blinding trachoma ranked second among the eight major visual impairment causes assessed with a prevalence of 172.9 (95% CI: 152.2196.6) per 100,000, while in 2006 it ranked eighth with a prevalence of 58.1 (95% CI: 45.573.0) per 100,000. The prevalence in 2006 decreased significantly compared to 1987 in both rural and urban areas, as well as in both genders. Furthermore, in both 1987 and 2006, visual impairment due to blinding trachoma tended to be concentrated among individuals over 40, although it was also seen in young people. Conclusion: In the past 20 years, the prevalence and percentage of visual impairment due to blinding trachoma was significantly reduced in Sichuan province, and we anticipate a further decrease in the future.
KW - Blinding trachoma
KW - National Sample Survey on Disabilities
KW - Prevalence
KW - Proportion
KW - Visual impairment
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U2 - 10.3109/09286586.2011.615451
DO - 10.3109/09286586.2011.615451
M3 - Article
C2 - 22168755
AN - SCOPUS:84863071734
SN - 0928-6586
VL - 19
SP - 29
EP - 37
JO - Ophthalmic Epidemiology
JF - Ophthalmic Epidemiology
IS - 1
ER -