Two-level screening audiometry in public school.

Area of Science:

• Audiology
• Pediatric Otology
• Public Health Screening

Background:

• Annual hearing screenings are crucial for early detection of hearing impairments in school children.
• Traditional one-level screening methods may not capture the full extent of hearing loss.
• Undiagnosed sensorineural deafness in school-aged children can impact educational development.

Purpose of the Study:

• To evaluate the effectiveness of a two-level screening audiometry method for identifying hearing impairments in school children.
• To provide a more detailed classification of hearing loss compared to standard methods.
• To improve the identification and management of hearing-impaired children, including those with undiagnosed conditions.

Main Methods:

• Implementation of a two-level screening audiometry protocol in Kobe City since 1980.
• Children failing initial 30 dB at 1 kHz or 25 dB at 4 kHz thresholds are re-tested at a 20 dB higher level.
• Classification of hearing status into nine distinct types (0-8) for each ear, creating a two-digit code.

Main Results:

• The two-level test yields more comprehensive data on the grade and type of hearing impairment.
• This method allows for detailed statistical analysis of hearing status across the school population.
• Facilitates individualized care and educational planning for children with identified hearing issues.

Conclusions:

• The two-level screening audiometry is a valuable tool for identifying and classifying hearing impairments in school children.
• It offers significant advantages for both statistical evaluation and personalized care, especially for those with undiagnosed hearing loss.
• This approach aids in the early detection of sensorineural deafness, which often goes unnoticed by children, teachers, and parents.