The Epidemiologic Study On Hearing Impairment And Ear Diseases In Jiangsu Province China

Part IThe study on hearing impairment and ear diseases in the whole populationobjective To investigate the population-based epidemic conditions of ear diseases and hearing impairment in Jiangsu province and provide scientific data for drawing up the prevention and treatment strategies.Methods Using the probability proportion to size ( PPS) method , 8412 residents were investigated in 40 clusters with the WHO protocol.Results The prevalence of hearing impairment was 15.9%( the standardized rate : 11.35% in the whole country, 13.26% in Jiangsu province).Degrees of hearing impairment were mild(10.6%), moderate (3.8%),severe(1.2%) and profound(0.4%).The prevalence of hearing disability was 5.3%.( the standardized rate: 3.86% in the whole country, 4.67% in Jiangsu province).There were significant difference of the prevalence between male and female,urban and rural and different ages. The prevalence of the ear diseases was auricle malformation (0.3%) , wax (1.4%), otitis externa(0.1%), fungi(0.5%), serous otitis media (1.1%), chronic suppurative otitis media(1.0%),dry perforation of tympanic membrance(1.3%).The causes of hearing impairment were ear diseases (8.79%),non-infectious condition(69.49%),genetic condition (0.54%)and undetermined cause(21.18%).6.9% of person needed hearing aid, 2.4% of...