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[Evaluate the prevalence of trachoma in high risk area of China]
1Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Vision Science Key Lab., Beijing 100730, China.
Objective:
To determine the prevalence of trachoma in urban and rural area in China. To provide the data evidence for the strategies of eliminating trachoma in China.
Methods:
Survey was conducted in 13 suspect trachoma high prevalence provinces according to the World Health Organization trachoma grading system and Trachoma Rapid Assessment(TRA).
Results:
From 2004 to 2007, a total number of examined children which were younger than 10 years old was 59 630. The prevalence of TF was 0.94%. To sum up the data of 2004 and 2005, the prevalence of active trachoma was 1.71% for children.TT and CO was not reported. The results for subjects older than 50 years old showed that the prevalence of TT was 0.34%. We examined 26 857 adults in both 2004 and 2005.The prevalence of TF, TI, TS and CO was 0.03%,0.08%,0.88% and 0.05% respectively.
Conclusions:
The prevalence of active trachoma of younger children was under 5%. However,the prevalence of TT of the adults was not reached the target.
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