hearing loss
Conditions
Interventions
Aged 20 - 29 years :N/A
Aged 30 - 39 years :N/A
Aged 40 - 49 years:N/A
Aged 50 - 59 years :N/A
Sponsors
Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine
Eligibility
Sex/Gender
All
Age
20 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1. Aged 20 - 60 years healthy young adults; 2. The ear canal and tympanic membrane were normal, the tympanometry graph was type A, each frequencyof 0.25, 0.5, 1, 2, 4, 6 and 8kHz hearing threshold is less than 25dB HL.
Exclusion criteria
Exclusion criteria: 1. Individual who has a history of head or ear injury, familial or congenital deafness, ototoxic drug use, otitis media, mumps, measles, etc.; 2. Individual whose pure tone hearing test curve seems horizontal or approximate linear, or the linguistic frequency hearing loss is greater than or equal to the high frequency hearing loss, and pseudo deaf, etc.; 3. With history of ear diseases, history of occupational or traumatic noise exposure, weekly exposure to entertaining noise >20 hours, shooting habbit.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| TEOAE;M-HINT;Gap detection; | — |
Primary
| Measure | Time frame |
|---|---|
| EcochG; | — |
Countries
China
Contacts
Public ContactZhiwu Huang
Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine
Outcome results
None listed