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The effects of a pre-fitting intervention on hearing aid benefit:a randomized controlled trial
Linköping University, Department of Clinical and Experimental Medicine, Technical Audiology . Linköping University, Faculty of Health Sciences.
Linköping University, Department of Behavioural Sciences and Learning, Clinical and Social Psychology. Linköping University, Faculty of Arts and Sciences.ORCID iD: 0000-0003-4753-6745
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Technical Audiology . Linköping University, Faculty of Health Sciences.
2009 (English)In: Audiological Medicine, ISSN 1651-386X, Vol. 7, no 4, 211-215 p.Article in journal (Other (popular science, discussion, etc.)) Published
Abstract [en]

Thirty-nine first time hearing aid users with mild to moderate hearing losses were randomly assigned to a pre-fitting intervention group (N=19) or a control group (N=20). The pre-fitting intervention consisted of three weekly visits, where the user adjusted the amplification of an experimental hearing aid to preferred settings, and wore the aid between the visits. After the pre-fitting intervention phase, both groups received conventional hearing aid fitting. Standardized questionnaires (IOI-HA, HHIE, ECHO, SADL, HADS) were administered before and after pre-fitting intervention, after conventional hearing aid fitting, and at one-year follow-up. Hearing aid success was evaluated by an independent audiologist at the one- year follow-up appointment. The pre-fitting intervention phase showed positive effects for the intervention group but not for the control group on activity limitation and participation restriction, and expectations. However, the intervention in its current version had no lasting effects beyond the control group after conventional hearing aid fitting or after a year. Furthermore, both groups showed mostly successful hearing aid fittings, improved psychosocial well-being, quality of life, and reduced participation restriction.

Place, publisher, year, edition, pages
2009. Vol. 7, no 4, 211-215 p.
Keyword [en]
Pre-fitting intervention, user-controlled adjustment, randomized clinical trial, independent evaluation, hearing aid benefit, hearing aid use, satisfaction, activity limitation, participation restriction, psychosocial well-being, counselling
National Category
URN: urn:nbn:se:liu:diva-12457DOI: 10.3109/16513860903309790OAI: diva2:147
Available from: 2008-09-05 Created: 2008-09-05 Last updated: 2014-11-28Bibliographically approved
In thesis
1. Approaches to Audiological Rehabilitation with Hearing Aids: studies on pre-fitting strategies and assessment of outcomes
Open this publication in new window or tab >>Approaches to Audiological Rehabilitation with Hearing Aids: studies on pre-fitting strategies and assessment of outcomes
2008 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Fourteen percent of the Swedish population report subjective hearing loss. The number of persons suffering from hearing loss is expected to increase in accordance with the increased length of the average life span, causing an associated increase in the demand for hearing health care services as new patient groups who expect a higher quality of life begin to request hearing care. The main goal of this thesis was to develop new approaches in audiological rehabilitation to meet these demands and achieve user satisfaction.

Two randomized controlled trials including 39 and 38 subjects, respectively were performed that evaluated two interventions, user-controlled adjustment and sound awareness training, which were performed prior to a hearing aid fitting. The new approaches focused on increasing user participation and activity. To evaluate the goals of audiological rehabilitation, e.g., reducing auditory impairment, optimizing auditory activities and minimizing participation restrictions, several standardized self-reporting instruments were used to assess activity limitations, participation restriction, satisfaction and psychosocial well-being. Several of the instruments were validated for a Swedish population in a postal survey including 162 subjects. Furthermore, an interview instrument that was appropriate for telephone interviews and a categorization rating scale were developed for assessing the global clinical impression of the audiological rehabilitation.

Few significant differences in outcomes were found between the treatment and control groups in the short term, and the interventions did not achieve additional or more successful hearing aid users in the long term. Thus, it was concluded that the hearing aid rehabilitation was effective in and of itself, as both the treatment and control groups showed significant improvements in psychosocial well-being and reduced activity limitation and participation restriction. The self-report instruments were found to be valid, and a factor analysis indicated that the number of questionnaires could be reduced with a recommendation for further clinical use. The telephone interviews evaluating the clinical global impression of the audiological rehabilitation were found to be effective and showed success in a vast majority of the users. Advantages such as simpler administration and less time consumption warrant their continued use in additional audiological settings.

The pre-interventions in these studies need to be further investigated before they could be recommended for clinical use also in a Swedish context. The international standardized self reports, however, can already be recommended for clinical use. A first attempt to evaluate global clinical impression by telephone interviews was found to be effective and further validations are suggested.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2008. 86 p.
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1074Studies from the Swedish Institute for Disability Research, ISSN 1650-1128 ; 27
National Category
urn:nbn:se:liu:diva-12528 (URN)978-91-7393-828-0 (ISBN)
Public defence
2008-09-19, Elsa Brändströmsalen, Universitetssjukhuset, Campus US, Linköpings Universitet, Linköping, 13:00 (English)
Available from: 2008-09-11 Created: 2008-09-11 Last updated: 2014-11-28Bibliographically approved

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Öberg, MarieAndersson, GerhardLunner, Thomas
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Technical Audiology Faculty of Health SciencesClinical and Social PsychologyFaculty of Arts and SciencesDepartment of Clinical and Experimental Medicine
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