Detecting components of hearing aid fitting using a self-assessment-inventory

Area of Science:

• Audiology
• Hearing Science
• Rehabilitation Engineering

Background:

• Hearing aid fitting involves objective tests and subjective user feedback.
• Self-assessment inventories capture benefit, satisfaction, and usage, crucial for evaluating hearing aid effectiveness.

Purpose of the Study:

• To identify underlying components of hearing aid fitting using a comprehensive questionnaire.
• To analyze how different listening conditions (speech in quiet/noise, sounds) influence these components.
• To investigate the relationships between these components, usage, satisfaction, and external factors like social activity and age.

Main Methods:

• A questionnaire with 11 domains was administered to hearing aid users.
• Data were collected across three listening conditions: speech in quiet, speech in noise, and listening to sounds.
• Statistical analysis was used to determine the factor structure and correlations between variables.

Main Results:

• A three-factor structure (situation, restriction, aid-related variables) emerged, consistent across listening conditions.
• Hearing aid usage was influenced by all three factors.
• Disability and handicap were highest in speech-in-noise conditions, while aid-related factors were lowest.
• Global satisfaction correlated with aid-related factors, independent of hearing restriction.
• Social activity positively impacted benefit and satisfaction across all conditions.
• Age showed no significant relationship with any component.

Conclusions:

• Hearing aid fitting success is multifactorial, involving situational, restriction-related, and aid-related variables.
• Subjective user experience and benefit are significantly influenced by social engagement.
• Extra-audiological factors, such as social activity, play a vital role in the overall success of hearing aid fitting, beyond audiological measures.