title: Elimination of blinding trachoma in China.
abstract: OBJECTIVE
  To present the change in the prevalence of blindness caused by trachoma between 1987 and 2006 by secondary data analysis based on two China National Sample Surveys on Disability (CNSSD).
  
  
  METHODS
  Secondary data analysis was performed on two China National Sample Surveys on Disability (CNSSD), which were national representative household surveys conducted in 1987 and 2006. The prevalence of blindness caused by trachoma was estimated by 10-year age group. In addition, the proportion of various causes of blindness was evaluated. The geographical distribution of blindness caused by trachoma both in 1987 and 2006 was analyzed in order to visualize the hot spots of blinding trachoma in China.
  
  
  RESULTS
  The prevalence of blindness caused by trachoma in China decreased from 51.5/100,000 in 1987 to 17.6/100,000 in 2006. In addition, the proportion of blindness attributed to trachoma also decreased from 10.1% (1987) to 0.9% (2006). Moreover, the prevalence of blindness caused by trachoma was over 200/100,000 in 2.2% of sampled counties in 2006 as compared to 8.6% in 1987. The hot spots of blinding trachoma were shown to be limited to underdeveloped mountain areas in Hubei and Guizhou provinces.
  
  
  CONCLUSIONS
  Although blinding trachoma is no longer the leading cause of blindness in China since the 2000's, the prevalence of trachoma should still be monitored in some underdeveloped mountain areas. Therefore, health organization must continue to fight against blinding trachoma in underdeveloped areas.
authors.affiliation: Department of epidemiology and biostatistics, school of public health, Capital medical university, No.10, Xitoutiao, 100069 You An Men, Beijing, China.
authors.forename: T
authors.initials: T
authors.lastname: Liu
authors.affiliation: Beijing institute of ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key laboratory of ophthalmology and visual sciences, 100005 Beijing, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Liang
authors.affiliation: Beijing institute of ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key laboratory of ophthalmology and visual sciences, 100005 Beijing, China.
authors.forename: A
authors.initials: A
authors.lastname: Hu
authors.affiliation: Center of clinical epidemiology & evidence-based medicine, Beijing children's hospital, capital medical university, Beijing, China.
authors.forename: G
authors.initials: G
authors.lastname: Feng
authors.affiliation: Beijing institute of ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key laboratory of ophthalmology and visual sciences, 100005 Beijing, China.
authors.forename: N
authors.initials: N
authors.lastname: Wang
authors.affiliation: Department of epidemiology and biostatistics, school of public health, Capital medical university, No.10, Xitoutiao, 100069 You An Men, Beijing, China; Center of clinical epidemiology & evidence-based medicine, Beijing children's hospital, capital medical university, Beijing, China. Electronic address: niuniu@ccmu.edu.cn.
authors.forename: X
authors.initials: X
authors.lastname: Peng
authors.affiliation: Beijing institute of ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key laboratory of ophthalmology and visual sciences, 100005 Beijing, China; Quinze-Vingts national ophthalmology hospital, 75012 Paris, France; Versailles Saint-Quentin-en-Yvelines university, 78000 Versailles, France; Inserm, U968, 75012 Paris, France; UPMC Université Paris 06, UMR_S 968, institut de la vision, 75012 Paris, France; CNRS, UMR_7210, 75012 Paris, France.
authors.forename: C
authors.initials: C
authors.lastname: Baudouin
authors.affiliation: Beijing institute of ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key laboratory of ophthalmology and visual sciences, 100005 Beijing, China; Quinze-Vingts national ophthalmology hospital, 75012 Paris, France; Versailles Saint-Quentin-en-Yvelines university, 78000 Versailles, France; Inserm, U968, 75012 Paris, France; UPMC Université Paris 06, UMR_S 968, institut de la vision, 75012 Paris, France; CNRS, UMR_7210, 75012 Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Labbé
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001766:Blindness / Q000175:diagnosis / Q000453:epidemiology* / Q000382:microbiology / Q000517:prevention & control*; D002648:Child; D002681:China / Q000453:epidemiology; D060740:Disease Eradication; D006801:Humans; D007231:Infant, Newborn; D008403:Mass Screening; D008875:Middle Aged; D015995:Prevalence; D014141:Trachoma / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control*; D055815:Young Adult
keywords: Analyse secondaire; Blinding trachoma; China national sample surveys on disability; Secondary data analysis; Trachome cécitant