Survey of Hearing Losses Among Armor Personnel

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Abstract
The hearing of 3099 persons in military service was tested by group audiometer and hearing losses related to age and previous noise exposure. Hearing losses increased with age, particularly at higher frequencies. Median hearing loss differences between negligibly and severely exposed individuals ranged from no difference to moderate difference, depending on frequency and age group. Difference tended to be greater for the poorest 25% of the 2 groups, especially for the older age ranges. The present results agreed quite well with other surveys utilizing group testing procedures; however, the differences were not as great as in previous studies.

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