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China - Jiangsu, Sichuan, Guizhou, and Jilin WHO Ear and Hearing Disorders Survey 2005-2006

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General Info
Geography 
China (CHN)
Guizhou, Jiangsu, Jilin, Sichuan
Coverage type 
Subnational
Time period covered 
01/2005 - 12/2006
Data type
Summary 

Using the WHO Ear and Hearing Disorders Survey Protocol and the probability proportion to size (PPS) sampling technique, 30,733 residents were targeted for investigation in 150 clusters in four provinces. Every subject had an ear examination and pure tone audiometry.