A new hearing screening system for preschool children.

Area of Science:

• Pediatric Audiology
• Hearing Screening Technologies
• Early Childhood Health

Background:

• Early detection of hearing loss in preschool children is crucial for development.
• Existing hearing screening methods can be time-consuming and require specialized personnel.
• Smart Hearing offers a novel automated approach to hearing assessments.

Purpose of the Study:

• To evaluate the practical application and accuracy of the Smart Hearing system for preschool children.
• To determine the prevalence of hearing loss in a large cohort of preschool-aged children.
• To assess the system's suitability for universal hearing screening.

Main Methods:

• The Smart Hearing system was used to screen 6288 preschool children aged 3-6 years.
• Automated hearing threshold testing was conducted at 1kHz, 2kHz, and 4kHz with a 30dB HL pass criterion.
• Children with positive results were referred for audiological evaluation; a subset (n=312) received comprehensive audiology assessments for accuracy evaluation.

Main Results:

• 9.3% of children screened positive, with referral rates decreasing by age (18.8% at 3 years to 4.0% at 6 years).
• Permanent hearing loss was diagnosed in 1.91‰ and temporary conductive hearing loss in 1.19% of evaluated children.
• The system demonstrated high specificity (92.6%) but low sensitivity (37.5%).

Conclusions:

• The Smart Hearing system is appropriate for universal hearing screening in preschool children aged 4 and above.
• Improvements are necessary to enhance the system's sensitivity for more comprehensive early detection.
• Further development is recommended to optimize the system for younger preschool populations.