Hearing Difficulties and Tinnitus in Construction, Agricultural, Music, and Finance Industries: Contributions of Demographic, Health, and Lifestyle Factors.
Samuel Couth, Naadia Mazlan, David R Moore and 2 others
PMID 31747526WHAT IT FOUND
Construction and farm workers had more difficulty hearing speech in noise than finance workers.
Tinnitus differences by industry were associated with noise exposure and age, not the industry itself.
Key findings
01Agricultural and construction workers had higher odds of hearing difficulties than finance workers, even after age, ethnicity, socioeconomic status, health and lifestyle factors, and noise exposure were accounted for.
02Music workers did not have significantly higher odds of hearing difficulties than finance workers.
03Industry differences in tinnitus were no longer significant after occupational noise exposure, music noise exposure and age were accounted for.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study was retrospective and cross-sectional, so it can show associations at one time point but cannot show that noise exposure caused hearing difficulties or tinnitus. Only people who were currently employed or self-employed were included, and previous job history was not captured, so past occupational noise exposure may not match the industry listed. The U.K. Biobank sample had a 5.5% response rate and was healthier and more affluent than the general population, so rates may not represent all workers. Noise exposure was measured with self-report questions about shouting to be heard, which may miss moderate occupational noise exposure and does not give precise intensity or duration. Hearing and tinnitus measures were added part way through data collection, so not all participants had these outcomes; the music group was also small at 395 participants. The models accounted for only a small proportion of the variance in hearing difficulties and tinnitus, so important factors such as chemical exposure or detailed lifetime noise history may be missing.
Declared interests
The supplied text does not report author conflicts of interest. The article is listed as supported by non-U.S. government sources.
The easy way to misread this
Do not conclude that musicians have more hearing difficulties than finance workers. In this study, music workers did not have significantly higher hearing difficulties than finance workers, and their unadjusted hearing-difficulty percentage was lower than the finance percentage.