Recent Hearing Research

• The effects of music & auditory beat stimulation on anxiety: A randomized clinical trial. Mallik A, Russo FA (2022). PLOS ONE 17(3): e0259312.

• Music for animal welfare: A critical review & conceptual framework. Kriengwatanaa, B. P., Mott, R., Cateb, C. (2022). Applied Animal Behaviour Science, 251, 105641.

• The Impact of Occupational Noise Exposure on Hyperacusis: a Longitudinal Population Study of Female Workers in Sweden. Fredriksson, S. Hussain-Alkhateeb, L., Torén, K., Sjöström, M., Selander, J., Gustavsson, P., Kähäri, K., Magnusson, L., Persson Waye, K. (2022). Ear and Hearing: 43(4) 1366-1377.

• The Risk of Hearing Impairment From Ambient Air Pollution and the Moderating Effect of a Healthy Diet: Findings From the United Kingdom Biobank. Yuan, L., Li, D., Tian, Y., Sun, Y. (2022). Front. Cell. Neurosci., 06 April 2022.

• Cohort difference in the association between use of recreational firearms and hearing loss: findings from the HUNT study. Engdahl, B., Aarhus, L. (2022). International Journal of Audiology, 27 Mar 2022.  

Age Correction and Re-write of OSHA Technical Manual – Section III, Chapter 5, Noise 

There is exciting news for hearing conservation programs. Per OSHA Directive TED-01-00-015, there has been "a complete update and revision of this chapter." This revision includes approving the use of NHANES data for age correction of audiograms. Two brief excerpts from Chapter 5: 

1) "A set of population-based age adjustment tables have recently been developed using data from the U.S. National Health and Nutrition Examination Survey (NHANES) which was then validated using a database of exposed workers (male firefighters and emergency medical service workers). Results from this validation study (https://doi.org/10.1080/14992027.2019.1698068) included: cross-sectional trends implied less change with age than assumed in current U.S. regulations; different trends were observed among people identifying with non-Hispanic Black race/ethnicity; four age adjustment tables (age range: 18-85) were developed (women or men; non-Hispanic Black or other race/ethnicity); and, validation outcomes showed that the population-based tables matched median longitudinal changes in hearing sensitivity well. This study concludes that these population-based tables provide a suitable replacement for those implemented in the current noise standard and that the tables based on the NHANES data address a broader range of worker ages, account for differences in hearing sensitivity across race/ethnicity categories, and have been validated for men using longitudinal data. These age adjustment tables can be found in the supplemental material from the study."    

2) "…if age correction is to be performed then NHANES data is recommended for use instead of the tables in the noise standard."

This critical change to better align age correction values with population hearing levels was made possible by NHCA member research. See reference to the validation study below.

 Flamme, G.A., K.K. Deiters, M.R. Stephensen, C.L. Themann, W.J. Murphy, and D.C. Byrne. 2019. Population-based age adjustment tables for use in occupational hearing conservation programs. International Journal of Audiology. 59, 20-30.