1. Population-based age adjustment tables for use in occupational hearing conservation programs.
- Author
-
Flamme GA, Deiters KK, Stephenson MR, Themann CL, Murphy WJ, Byrne DC, Goldfarb DG, Zeig-Owens R, Hall C, Prezant DJ, and Cone JE
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Cross-Sectional Studies, Emergency Medical Technicians statistics & numerical data, Female, Firefighters statistics & numerical data, Hearing Loss, Noise-Induced etiology, Hearing Loss, Noise-Induced prevention & control, Hearing Tests standards, Humans, Longitudinal Studies, Male, Middle Aged, Noise, Occupational adverse effects, Nutrition Surveys, Occupational Diseases etiology, Occupational Diseases prevention & control, Occupational Health standards, Reference Standards, Reference Values, Retrospective Studies, Statistics as Topic, United States, Young Adult, Hearing Loss, Noise-Induced diagnosis, Hearing Tests statistics & numerical data, National Institute for Occupational Safety and Health, U.S. standards, Occupational Diseases diagnosis, Occupational Health statistics & numerical data
- Abstract
Objective: In occupational hearing conservation programmes, age adjustments may be used to subtract expected age effects. Adjustments used in the U.S. came from a small dataset and overlooked important demographic factors, ages, and stimulus frequencies. The present study derived a set of population-based age adjustment tables and validated them using a database of exposed workers. Design: Cross-sectional population-based study and retrospective longitudinal cohort study for validation. Study sample: Data from the U.S. National Health and Nutrition Examination Survey (unweighted n = 9937) were used to produce these tables. Male firefighters and emergency medical service workers (76,195 audiograms) were used for validation. Results: 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). Validation outcomes showed that the population-based tables matched median longitudinal changes in hearing sensitivity well. Conclusions: These population-based tables provide a suitable replacement for those implemented in current U.S. regulations. These tables 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.
- Published
- 2020
- Full Text
- View/download PDF