Acoustics. Statistical distribution of hearing thresholds related to age and gender

2006 ◽  
Vol 21 (2) ◽  
pp. 47-58
Author(s):  
Jenna S Hoffman ◽  
David R Cunningham ◽  
Douglas J Lorenz

This study was undertaken to quantify hearing thresholds in a large sample of percussionists and to evaluate factors that might increase or decrease a percussionist's risk for music-induced hearing loss. Audiometric and musical history data were collected from 315 percussionists attending the Percussive Arts Society International Convention in Louisville, Kentucky, in November 2004. Hearing thresholds for percussionists were compared to an age- and gender-matched, otologically normal reference population. Results indicate that hearing thresholds of percussionists are significantly worse than those of their age- and gender-matched peers, although differences appear to be small. Hearing was worse in the left ear of percussionists. The prevalence of hearing loss was 39% in percussionists vs. 9% in the reference population. Factors identified as increasing the risk for hearing loss included using amplification systems, playing rock/pop music, having more years of experience, and considering oneself a professional. Increased playing time and playing classical or jazz music were not found to increase a percussionist's risk for hearing loss. Benefits of wearing hearing protection devices (HPDs) were observed only for individuals who used foam earplugs when practicing. It is recommended that percussionists not only use HPDs and decrease practice and performance intensity levels but also participate in annual audiologic evaluations, including otoacoustic emission testing, to prevent music-induced hearing loss.


2008 ◽  
Vol 19 (04) ◽  
pp. 281-292 ◽  
Author(s):  
Terry L. Wiley ◽  
Rick Chappell ◽  
Lakeesha Carmichael ◽  
David M. Nondahl ◽  
Karen J. Cruickshanks

Changes in hearing thresholds over a 10-year period in a large population of older adults (2130) ranging in age from 48 to 92 years were documented. Pure-tone thresholds at frequencies from 0.5 to 8 kHz were evaluated at a baseline examination and 2.5, 5, and 10 years later. For younger age groups (50–69 years of age), threshold changes were generally greatest for higher frequencies; in older age groups (70–89 years of age), threshold changes were generally greatest for lower frequencies due to a ceiling effect at higher frequencies. At frequencies of 0.5, 1, 2, and 8 kHz, the pattern of 10-year changes in thresholds across audiometric frequencies was generally similar for men and women. Threshold changes at 4 and 6 kHz were relatively constant for all ages in men across the 10-year examination period; threshold changes at the same frequencies in women increased for the 48–59 and 60–69 years age groups and then tended to level off. Other than age and gender, the best baseline examination predictors of 10-year thresholds at a specific audiometric frequency were the baseline threshold at that frequency followed by the baseline threshold for the next higher test frequency. Se documentó el cambio en los umbrales auditivos durante un período de 10 años en una gran población de adultos mayores (2130), con edades entre 48 y 92 años. Se evaluaron los umbrales para tonos puros desde 0.5 a 8 kHz en una medición basal y después de 2.5, 5 y 10 años. Para grupos de edad más jóvenes (50-69 años de edad), los cambios de umbrales fueron generalmente mayores para las frecuencias más agudas; in grupos de edad mayor (70-89 años de edad), los cambios de umbral fueron generalmente mayores para las frecuencias graves, debido a una efecto tope en las frecuencias más agudas. En las frecuencias de 0.5, 1, 2 y 8 kHz, el patrón de cambio en los umbrales después de 10 años en todas las frecuencias audiométricas fue similar para hombres y mujeres. Los cambios de umbrales en 4 y 6 kHz fueron relativamente constantes para todas las edades en los hombres, a lo largo del período de evaluación de 10 años; los cambios de umbrales en las mismas frecuencias en mujeres aumentaron en los grupos de edad de 48–59 y 60–69 años, y luego tendieron a nivelarse. Además de la edad y el género, los mejores elementos basales de predicción de los umbrales a 10 años en una frecuencia audiométrica específica fueron el umbral basal en esa frecuencia, seguido del umbral basal en la siguiente frecuencia de prueba más aguda.


2000 ◽  
Author(s):  
Erika Felix ◽  
Anjali T. Naik-Polan ◽  
Christine Sloss ◽  
Lashaunda Poindexter ◽  
Karen S. Budd

1999 ◽  
Author(s):  
Kirby Gilliland ◽  
Robert E. Schlegel ◽  
Thomas E. Nesthus

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