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Original Article

Factors associated with hearing aid fitting outcomes on the IOI-HA

, &
Pages 586-595 | Received 04 Aug 2009, Accepted 15 Mar 2010, Published online: 02 Jun 2010
 

Abstract

Abstract

A hallmark of quality clinical practice in audiology should be the ongoing measurement of outcomes in order to improve practice. The aims of this study were to describe outcomes for a large sample of clients fitted with hearing aids and to investigate factors associated with mean IOI-HA scores, with a view to providing guidance about factors that warrant particular attention in the clinic in order to improve outcomes. Measures used were the international outcome inventory – hearing aids (IOI-HA; Citation) and a series of questions about satisfaction with hearing aid performance in different listening situations, hearing aid attributes, and clinical service. The participant sample consisted of 1653 adults, most often fitted bilaterally (78%); 81% had digital aids with at least two listening programs. Results of the regression analysis indicated that there were a number of significant factors that, in total, explained 57% of the variance in IOI-HA scores. Higher mean IOI-HA scores were most strongly associated with greater satisfaction with hearing aid attributes of aid fit/comfort, clarity of tone and sound, and comfort with loud sounds and with satisfaction in the listening situations of conversation with one person, in small groups, in large groups, and outdoors. These findings highlight the importance of focusing rehabilitation on improving satisfaction with aided listening across a range of environments and with key attributes of hearing aid performance.

Sumario

El sello de calidad de la práctica clínica audiológica debería ser la medición continuada de los resultados para poder mejorar la práctica. Los objetivos de este estudio fueron describir los resultados de una amplia muestra de clientes adaptados con un auxiliar auditivo e investigar los factores asociados con puntuaciones IOI-HA promedio, con la intención de proporcionar una guía sobre los factores que justifican la atención particular en la clínica para mejorar los resultados. Las mediciones utilizadas fueron el inventario internacional de resultados – auxiliares auditivos (IOI-HA; Citation) y una serie de preguntas sobre satisfacción con el desempeño del auxiliar auditivo en diferentes situaciones auditivas, los atributos del auxiliar y el servicio clínico. La muestra de participantes consistió en 1653 adultos, en su mayoría con auxiliares auditivos bilaterales (78%); 81% tenían auxiliares digitales con al menos dos programas. Los resultados del análisis de regresión indicaron que hubo un número de factores significativos que en total explicaban el 57% de la varianza en los resultados de IOI-HA. Los resultados del IOI-HA altos en promedio estuvieron estrechamente asociados con una mayor satisfacción con los atributos del auxiliar auditivo como adaptación/confort y claridad del tono y sonido y confort con sonidos elevados y con la satisfacción en las situaciones de escucha de conversaciones con una persona, en grupos pequeños, en grupos grades y en el exterior. Estos hallazgos remarcan la importancia de enfocar la rehabilitación hacia el mejoramiento de la satisfacción con la audición asistida a través de un rango de ambientes y con los atributos clave del desempeño de los auxiliares auditivos.

Acknowledgements

The second author, Susan Clutterbuck, is a part owner and project director of EARtrak. The de-identified EARtrak database was made available to the first and third authors for independent analysis at no charge and with no qualifications on the scope or outcomes of the research.

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

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