The overall prevalence of hearing loss (defined as a pure‐tone average threshold across frequencies 1000, 2000, 3000, and 4000 Hz of 25 dB or more in either ear) was 15% but that rate was exceeded in several of the subsectors of those industries. Prevalences were highest among workers in Forest Nurseries and Gathering of Forest Products at  36% and Timber Tract Operations at 22%. The Aquaculture sub‐sector had the highest adjusted risk (adjusted probability ratio of 1.7) of all sub‐sectors of the Agriculture, Forestry, Fishing, and Hunting industries. The same methodology was used to estimate the prevalence of hearing loss for noise-exposed U.S. workers within the Health Care and Social Assistance  sector. The prevalence of hearing loss in the Medical Laboratories subsector was 31% and in the Offices of All Other Miscellaneous Health Practitioners subsector was 24%. The Child Day Care Services subsector had a 52% higher risk than the reference industry.While the overall HSA sector prevalence for hearing loss was 19%, the prevalence in the Medical Laboratories subsector and the Offices of All Other Miscellaneous Health Practitioners subsector were 31% and 24%, respectively. The Child Day Care Services subsector had a 52% higher risk than the reference industry of workers who are not exposed to noise at work (Couriers and Messengers). Overall, audiometric records show that about 33% of working-age adults with a history of occupational noise exposure have evidence of noise-induced hearing damage, and 16% of noise-exposed workers have material hearing impairment.
See also
List of Munchausen by proxy cases
Folie à deux
Hypochondria
Munchausen by Internet
Psychosomatic illness
Run (2020 American film)


== References ==