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Epidemiological Studies on Hearing Impairment with Reference to Genetic Factors in Sichuan, China
Hearing impairment is the most common disorder of sensorineural function and is an economically and socially important cause of human morbidity, A large-scale epidemiological survey of hearing loss was conducted with 126,876 unselected subjects (63,741 male and 63,135 female) from Sichuan, China. Th...
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Published in: | Annals of otology, rhinology & laryngology rhinology & laryngology, 2001-04, Vol.110 (4), p.356-363 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Hearing impairment is the most common disorder of sensorineural function and is an economically and socially important cause of human morbidity, A large-scale epidemiological survey of hearing loss was conducted with 126,876 unselected subjects (63,741 male and 63,135 female) from Sichuan, China. The overall prevalence of hearing loss was 3.28% (4,164 of 126,876), and the prevalence increased with age, reaching 12.8% (1,465 of 11,421) at 60 years of age. In 73.03% of all cases (3,041 of 4,164), the hearing loss was sensorineural, and in 20.39% (849 of 4,164), it was conductive; the remaining cases (6%) were mixed hearing loss. Bilateral loss was found in 74.5% of cases (3,103 of 4,164). In 63.79% of cases (2,656 of 4,164), the degree of hearing loss was less than 55 dB hearing level (HL), and in 5.67% of cases (236 of 4,164), it was greater than 90 dB HL. The prevalence of hearing loss in childhood ( |
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ISSN: | 0003-4894 1943-572X |
DOI: | 10.1177/000348940111000412 |