Auditory characteristics of noise-exposed memberscrossing age-related groups
Liu Chenqing
Ding Daxiong
Zhu Yuhua
Wang Hongyang
Cheng Xiaoting
Zhao Zhenhua
Cao Juyang
Zhai Suoqiang
Yu Ning
摘要：Objective:To report audiological characteristics in a group of noise-exposed crew members on board ships.
Methods and materials:Clinical and audiological measurements including pure-tone thresholds,acoustic immittance results and tinnitus questionnaires were collected from both the ship crew members(study subjects)and their land based colleagues(controls).
Results:1)Noise exposed crew members showed not only high frequency,but also low frequency hearing loss;2)Hearing impairment increased with age,with 65.5%of crew members younger than 50 years showing normal hearing while only 14.9%of those older than 50 years had normal hearing;3)hearing loss gradually increased with the extension of on board career time;and 4)Most study subjects reported high pitch tinnitus,significantly more than the control group although not significantly different among different age groups.
Conclusion:Noise induced hearing impairment from working on board ships shows specific frequency and age characteristics.Understanding these characteristics is important for advancing relevant studies and for effective prevention of noise-induced hearing loss in ship crew members.
机标关键词：characteristicsage-relatedauditorygroupsmemberscrossingnoise-exposed
论文发表日期：2018-01-01
页数：5( 75-79 )
英文信息