Intervention Efficacy for Children With Mild Bilateral Sensorineural Hearing Loss

Area of Science:

• Audiology
• Speech-Language Pathology
• Pediatric Hearing

Background:

• Mild bilateral sensorineural hearing loss (MBHL) affects language and articulation in children.
• Hearing aids (HAs) and frequency modulation (FM) systems are common interventions.
• Limited comparative data exists for these interventions in Cantonese-speaking children.

Purpose of the Study:

• To compare the efficacy of HAs versus FM systems in children with MBHL.
• To assess improvements in language, articulation, and speech perception over 12 months.
• To evaluate outcomes in a Cantonese-speaking pediatric population.

Main Methods:

• Prospective repeated-measures design with 43 children (aged 6-7 years) with MBHL.
• Random assignment to HA group (n=16), FM group (n=16), or control group (n=11).
• Utilized Cantonese-specific assessments for articulation, language, and speech perception at baseline and 12 months.

Main Results:

• The FM group showed significant language improvements (word definition, vocabulary, grammar) compared to HA and control groups (p < .01).
• Greater articulation gains, particularly in consonant production, were observed in the FM group (p < .01).
• No significant improvements in speech perception were found across any of the groups.

Conclusions:

• FM systems are more effective than HAs for enhancing language and articulation in children with MBHL.
• FM systems are particularly beneficial in noisy environments like classrooms.
• Individualized intervention strategies are crucial, with FM systems showing promise for auditory access and language development.