Hearing Loss Clinical Trial
Official title:
Speech-in-Noise Measures as a Predictor of Hearing Aid Outcomes
Verified date | April 2015 |
Source | VA Office of Research and Development |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Federal Government |
Study type | Observational |
The primary complaint of individuals with hearing loss is difficulty understanding speech in the presence of background noise. Although hearing aids help individuals understand speech in background noise better, there is a high rate of hearing aid rejection in part due to continued difficulty understanding speech in complex listening situations. The results of this study may demonstrate that speech-in-noise test results can be a predictor of hearing aid success. The results of this study also may lead to further studies that can evaluate interventions to improve hearing aid success for individuals who are identified as unsuccessful hearing aid users.
Status | Completed |
Enrollment | 120 |
Est. completion date | June 2009 |
Est. primary completion date | October 2008 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 18 Years to 85 Years |
Eligibility |
Inclusion Criteria: - adult onset of hearing loss, - symmetrical, sensorineural hearing loss, - no more than 60 dB HL hearing loss measured via an average of air conduction thresholds at .5, 1, and 2 kHz in each ear, and - use of binaural hearing aids of the same make and model for each ear - at least 3 months of hearing aid use. Exclusion Criteria: - enrollment in group audiologic rehabilitation classes, - currently using an FM system, - inability to read and write American English, and - signs of middle ear or retrocochlear pathology. |
Observational Model: Cohort, Time Perspective: Prospective
Country | Name | City | State |
---|---|---|---|
United States | James H. Quillen VA Medical Center | Mountain Home | Tennessee |
Lead Sponsor | Collaborator |
---|---|
VA Office of Research and Development |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Words-in-noise Test | The WIN consists of two lists of 35 Northwestern University Auditory Test No. 6 words (NU-6; Tillman and Carhart, 1966) presented in a 6-talker babble at 7 SNRs ranging from 24- to 0-dB in 4-dB decrements. Thus for each list, five unique words spoken by a female talker are presented at each SNR with the level of the babble fixed (Department of Veterans Affairs, 2006). The SNR at which the 50% point occurs is calculated with the Spearman-Kärber equation (Finney, 1952). Normal performance on the WIN is between 0 and 6-dB S/N. | aided (after wearing hearing aids for at least 3 months) | No |
Secondary | Acceptable Noise Level Test | The ANL consists of a speech signal and a competing noise signal. The speech signal is a continuous monologue (Arizona Travelogue) by a male talker and the competing noise signal is the 12-talker babble from the Speech in Noise (SPIN) test (Kalikow et al, 1977). The speech and babble stimuli are recorded on separate channels on a compact disc (CD; Cosmos, Inc.). The task of the listener was to adjust the level of the travelogue to the most comfortable level (MCL) and then to adjust the level of the babble to the level the listener is willing "to put up with" and still follow the travelogue, or to the background noise level (BNL). The ANL (in dB) is the difference between the MCL and BNL. | aided (after wearing hearing aids for at least 3 months) | No |
Secondary | International Outcomes Inventory for Hearing Aids (IOI-HA) | Overall/general hearing-aid outcome measure. Range in scores are 7-35 with higher scores representing better outcomes. | aided (after wearing hearing aids for at least 3 months) | No |
Secondary | Measure of Audiologic Rehabilitation Self-Efficacy for Hearing Aids (MARS-HA) | Measures hearing-aid self-efficacy over four subscales (basic handling, advanced handling, adjustment, and aided listening). Subscale scores are averaged to produce a total self-efficacy scores that can range from 0 (low self-efficacy) to 100 (high self-efficacy). | aided (after wearing hearing aids for at least 3 months) | No |
Secondary | Satisfaction With Amplification in Daily Life (SADL) | Measures how satisfied listeners are with their current hearing aids. Total scale scores are computed by averaging the subscale (positive effect, negative features, personal image, and service & delivery) scores that range from 1 (no satisfaction) to 7 (high satisfaction). | aided (after wearing hearing aids for at least 3 months) | No |
Secondary | Speech Spatial and Qualities of Hearing Scale (SSQ) | The SSQ measures hearing abilities related to speech, spatial perception, and quality of sound using a 1-10 scale. Items are averaged across the test. Higher scores indicate better outcomes. | aided (after wearing hearing aids for at least 3 months) | No |
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