Majumder Joydeep, Patel Ramanlal C, Kotadiya Sanjay, Shah Priyanka
Division of Physiology and Ergonomics, ICMR-National Institute of Occupational Health, Ahmedabad, Gujarat, India.
Occupational Psychology, ICMR-National Institute of Occupational Health, Ahmedabad, Gujarat, India.
Indian J Occup Environ Med. 2018 Jan-Apr;22(1):11-16. doi: 10.4103/ijoem.IJOEM_22_18.
Administrative workers working in quieter environment workplace are considered unaffected by noise-induced hearing loss (NIHL).
To create a baseline data of the administrative workers so as to monitor them with prospective years of exposure with the hypothesis that workers working in the administrative jobs may not be affected by NIHL.
The study was conducted among men and women administrative workers working in an office in Ahmedabad city, India. The design of the study was prospective cross-sectional study.
In all, 64 men and 33 women administrative workers were recruited. Pure tone air conduction (AC) and unmasked bone conduction (BC) audiometry of both ears was performed. Pure tone averages (PTAs) and air-bone gap (ABG) were calculated. Excess risk of hearing impairment was estimated using five model equations.
Descriptive statistics was used for analysis. For calculation of excess risk of hearing impairment, models in online calculator were used.
AC for men depicted 4 and 6 kHz notch, whereas 6 kHz for women, for both ears. Around three-fourth men and nine-tenth women recorded hearing threshold <25 dB (A) for PTA. ABG was <15 dB at all frequencies except 6 kHz, for both groups. Highest values of average estimated excess risk were 4.89% and 1.21% for men and women, respectively. Estimated excess risk ranged up to 1% for 50%-77% men and 82%-91% women.
Administrative workers are minimally risked of developing NIHL; however, with progressive age, hearing ability may deteriorate.
在较为安静的工作环境中工作的行政人员被认为不会受到噪声性听力损失（NIHL）的影响。
创建行政人员的基线数据，以便在未来几年的暴露期间对他们进行监测，假设从事行政工作的人员可能不会受到噪声性听力损失的影响。
该研究在印度艾哈迈达巴德市一家办公室工作的男性和女性行政人员中进行。研究设计为前瞻性横断面研究。
共招募了64名男性和33名女性行政人员。对双耳进行纯音气导（AC）和非掩蔽骨导（BC）听力测定。计算纯音平均值（PTA）和气骨导差（ABG）。使用五个模型方程估计听力损伤的超额风险。
采用描述性统计进行分析。为计算听力损伤的超额风险，使用了在线计算器中的模型。
男性双耳的AC在4kHz和6kHz处出现切迹，而女性双耳在6kHz处出现切迹。约四分之三的男性和十分之九的女性PTA听力阈值<25dB（A）。两组在除6kHz以外的所有频率处ABG均<15dB。男性和女性平均估计超额风险的最高值分别为4.89%和1.21%。50%-77%的男性和82%-91%的女性估计超额风险高达1%。
行政人员患噪声性听力损失的风险极小；然而，随着年龄的增长，听力可能会下降。
