Risk Factors for Hearing Decrement Among U.S. Air Force Aviation-Related Personnel

Aerospace Medicine and Human Performance
Brandon M GreenwellGenny M Maupin

Abstract

The purpose of this study was to analyze historical hearing sensitivity data to determine factors associated with an occupationally significant change in hearing sensitivity in U.S. Air Force aviation-related personnel. This study was a longitudinal, retrospective cohort analysis of audiogram records for Air Force aviation-related personnel on active duty during calendar year 2013 without a diagnosis of non-noise-related hearing loss. The outcomes of interest were raw change in hearing sensitivity from initial baseline to 2013 audiogram and initial occurrence of a significant threshold shift (STS) and non-H1 audiogram profile. Potential predictor variables included age and elapsed time in cohort for each audiogram, gender, and Air Force Specialty Code. Random forest analyses conducted on a learning sample were used to identify relevant predictor variables. Mixed effects models were fitted to a separate validation sample to make statistical inferences. The final dataset included 167,253 nonbaseline audiograms on 10,567 participants. Only the interaction between time since baseline audiogram and age was significantly associated with raw change in hearing sensitivity by STS metric. None of the potential predictors were associated ...Continue Reading

Citations

Jan 26, 2021·International Archives of Occupational and Environmental Health·Feifan ChenFei Zhao
Apr 4, 2021·International Journal of Environmental Research and Public Health·Chao-Yin KuoChih-Hung Wang

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