scholarly journals Audiometric profile of civilian pilots according to noise exposure

2014 ◽  
Vol 48 (5) ◽  
pp. 790-796 ◽  
Author(s):  
Taiana Pacheco Falcão ◽  
Ronir Raggio Luiz ◽  
Gabriel Eduardo Schütz ◽  
Márcia Gomide da Silva Mello ◽  
Volney de Magalhães Câmara
Keyword(s):  
Hearing Loss ◽  
Pure Tone ◽  
Noise Exposure ◽  
Acoustic Stimulus ◽  
Cross Sectional Study ◽  
Exposure Level ◽  
Noise Induced Hearing Loss ◽  
Length Of Service ◽  
Cross Sectional ◽  
Air Conduction

OBJECTIVE To evaluate the audiometric profile of civilian pilots according to the noise exposure level. METHODS This observational cross-sectional study evaluated 3,130 male civilian pilots aged between 17 and 59 years. These pilots were subjected to audiometric examinations for obtaining or revalidating the functional capacity certificate in 2011. The degree of hearing loss was classified as normal, suspected noise-induced hearing loss, and no suspected hearing loss with other associated complications. Pure-tone air-conduction audiometry was performed using supra-aural headphones and acoustic stimulus of the pure-tone type, containing tone thresholds of frequencies between 250 Hz and 6,000 Hz. The independent variables were professional categories, length of service, hours of flight, and right or left ear. The dependent variable was pilots with suspected noise-induced hearing loss. The noise exposure level was considered low/medium or high, and the latter involved periods > 5,000 flight hours and > 10 years of flight service. RESULTS A total of 29.3% pilots had suspected noise-induced hearing loss, which was bilateral in 12.8% and predominant in the left ear (23.7%). The number of pilots with suspected hearing loss increased as the noise exposure level increased. CONCLUSIONS Hearing loss in civilian pilots may be associated with noise exposure during the period of service and hours of flight.

scholarly journals Prevalence of Hearing Loss in Military Aviators: The Audiometry and Risk Factors Analysis

2014 ◽  
Vol 9 (1) ◽  
pp. 19-24
Author(s):  
MR Alam ◽  
MA Wahab ◽  
MM Rahman ◽  
AKM Asaduzzaman ◽  
MAS Al-Azad ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hearing Loss ◽  
Noise Exposure ◽  
Health Hazard ◽  
Hearing Threshold ◽  
Armed Forces ◽  
Cross Sectional Study ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional ◽  
Medical Checkup

Introduction: Noise Induced Hearing Loss (NIHL) is an occupational health hazard linked with noise exposure of more than 85 dB. Aircraft noise and other occupational noise exposure cause military aviators more susceptible to NIHL than commercial jet pilots. Aim: To find out the prevalence of noise induced hearing loss among different military aircrew population with special emphasis on identifying the associated risk factors. Materials and Methods: This cross sectional study was conducted on Kuwait Air force pilots those who came for annual medical checkup from July 2010 to July 2012. Audiometry of all subjects was done by ENT specialist and necessary data were collected by structured questionnaires. All data were analyzed by SPSS (Statistical Package for the Social Sciences) version 17.0 Results: Out of 221 aircrew 32 (14.48%) developed NIHL. Hearing loss was mild to moderate and predominately at high frequencies. Most affected group was helicopter pilots. Pilots of more than 40 years of age and those who had more than 1000 flying hours had mean hearing threshold more than other groups. The right ear was affected in majority of cases than left ear. Conclusion: Noise exposure to aircrew is inevitable so hearing loss prevention strategies might play a pivotal role to save aircrew hearing. Active surveillance of hearing protection practices might have beneficiary effect. Steps can be taken for early detection of NIHL and hearing conservation program. DOI: http://dx.doi.org/10.3329/jafmc.v9i1.18721 Journal of Armed Forces Medical College Bangladesh Vol.9(1) 2013: 19-24

scholarly journals EFEK BISING MESIN ELEKTRONIKA TERHADAP GANGGUAN FUNGSI PENDENGARAN PADA PEKERJA DI KECAMATAN SARIO KOTA MANADO, SULAWESI UTARA

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Hardini Tjan ◽  
Fransiska Lintong ◽  
Wenny Supit
Keyword(s):  
Hearing Loss ◽  
Work Environment ◽  
Noise Exposure ◽  
Sensorineural Deafness ◽  
Bivariate Analysis ◽  
Fisher Exact Test ◽  
Exposure Level ◽  
Intensity Level ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional

Abstract: Noise induced hearing loss is caused by noise loud in the long period and a noisy work environment. Noisy work environment is a major problem in occupational health in various countries. The relationship between excessive noise exposure and hearing loss has been recognised since ancient times. Early epidemiological studies of noise induced hearing loss explored the damage risk relationship between occupational noise exposure level and the degree of hearing loss. The purpose of this study is to determine effect of engine noise electronics to auditory disfunction. The research methodeology used is an analytical method with a cross sectional approach. Samples were of 20 person taken from workers at the playground timezone and amazone. Data were obtained through questionnaires and examination of hearing function with the audiometri. Data were analyzed by using the Statistical Product and Service Solutions program (SPSS) and using the Fisher Exact test. Conclusion: The results showed that : There is a 75% hearing loss in all worker. The results of bivariate analysis showed there is no significant association between the hearing loss with the intensity level of noise (p = 0,032). The most common hearing loss is sensorineural deafness which generally occours in both ear. From the result of this study it can be concluded that the workers who work in a place that has the high intensity noise have greater risk of suffening from hearing loss. Keywords: Timezone and Amazone Workers, Noisy, Hearing.     Abstrak: Gangguan pendengaran akibat bising ialah gangguan pendengaran yang disebabkan akibat terpajan oleh bising yang cukup keras dalam jangka waktu yang cukup lama dan biasanya disebabkan oleh bising di lingkungan kerja. Bising lingkungan kerja merupakan masalah utama pada kesehatan kerja di berbagai negara. Hubungan antara paparan bising yang berlebihan dan kehilangan pendengaran telah dikenal sejak zaman kuno. Awal studi epidemiologi, gangguan pendengaran yang disebabkan oleh bising mengeksplorasi adanya hubungan atau faktor resiko antara pekerjaan, paparan tingkat kebisingan dan derajat gangguan pendengaran. Tujuan penelitian ini untuk mengetahui efek bising mesin elektronika terhadap gangguan fungsi pendengaran. Metode penelitian yang digunakan yaitu metode analitik dengan menggunakan rancangan cross sectional study. Sampel berjumlah 20 orang yang diambil dari pekerja di tempat bermain timezone dan amazone. Data diperoleh melalui kuisioner dan pemeriksaan fungsi pendengaran dengan menggunakan Audiometri. Data dianalisis dengan menggunakan Statistical Program Product and Service Solution (SPSS) dan menggunakan uji Fisher Exact. Simpulan: Hasil penelitian menunjukkan bahwa : Terdapat gangguan pendengaran sebesar 75 % pada seluruh pekerja. Hasil analisis bivariat menunjukan ada hubungan yang bermakna antara gangguan pendengaran dengan tingkat intensitas bising (p =  0,032).  Gangguan pendengaran yang paling banyak diderita oleh pekerja adalah tuli sensorineural (persepsi) yang umumnya terjadi pada kedua telinga. Dari hasil penelitian ini dapat disimpulkan bahwa pekerja yang bekerja pada intensitas bising yang tinggi memiliki resiko lebih besar menderita gangguan pendengaran. Kata Kunci: Pekerja Timezone & Amazone, Bising, Pendengaran

scholarly journals Prevalensi dan Faktor Risiko Tuli Akibat Bising pada Operator Mesin Kapal Feri

2013 ◽  
Vol 7 (12) ◽  
pp. 545
Author(s):  
Jumali Jumali ◽  
Sumadi Sumadi ◽  
Sylvia Andriani ◽  
Misbahul Subhi ◽  
Damianus Suprijanto ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Pure Tone ◽  
Noise Intensity ◽  
Noise Exposure ◽  
Noise Induced Hearing Loss ◽  
Affecting Factors ◽  
Cross Sectional ◽  
Intensity Measurements ◽  
Study Results ◽  
Cross Sectional Design

Kebisingan ruang mesin dapat menyebabkan gangguan pendengaran. Tujuan penelitian ini adalah menganalisis prevalensi tuli akibat bising Noise Induced Hearing Loss (NIHL) dan faktor yang memengaruhi pada operator mesin kapal feri penyeberangan Ketapang-Gilimanuk. Penelitian observasional dengan pendekatan cross sectional ini menggunakan metode pengumpulan data dengan wawancara, pengukuran intensitas kebisingan ruang mesin dan pemeriksaan audiometri terhadap operator. Besar sampel adalah 66 operator dari 36 kapal feri yang memenuhi kriteria inklusi dipilih secara acak. Hasil studi menunjukkan 36% kapal memiliki intensitas kebisingan ² 85 dBA dan 64% > 85 dBA. Pemeriksaan audiometri dengan nada murni pada 66 operator didapatkan 34,85% responden mengalami NIHL. Hasil analisis regresi logistik menunjukkan faktor dominan yang memengaruhi NIHL adalah usia dan lama paparan (p < 0,05). Hasil uji kai kuadrat didapatkan intensitas kebisingan berpengaruh signifikan terhadap NIHL setelah dikoreksi dengan umur dan lama paparan (p < 0,05). Disarankan untuk mengurangi waktu paparan terhadap operator yang terpajan kebisingan tinggi dan menjaga jarak antara operator dengan sumber kebisingan untuk meminimalkan pajanan bising.Engine room noise can cause hearing loss. The objective of this research was to analyze the prevalence of Noise Induced Hearing Loss (NIHL) and its affecting factors on machinery ferry operators at Ketapang-Gilimanuk. This was an observational with cross sectional design, the techniques for collecting data were interviews, noise intensity measurements and audiometric examination.The sample was 66 operators who were selected randomly after inclusion. The study results showed that 36% of ferry have noise intensity ² 85 dBA and 64% have > 85 dBA. The audiometric examination with pure tone result of the 66 operators showed that 34.85% of respondent had NIHL. The age and length of exposure affected NIHL incidence (p < 0.05). While the noise intensity affected the incidence of NIHL (p > 0.05) together with age and lenght of exposure. It is important to reduce exposure time of noisy operations on workers, automation of activities and increase the distance between workers and noisy equipment to minimise the noise exposure.

scholarly journals Sex differences in noise-induced hearing loss: a cross-sectional study in China

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Qixuan Wang ◽  
Xueling Wang ◽  
Lu Yang ◽  
Kun Han ◽  
Zhiwu Huang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hearing Loss ◽  
Sex Differences ◽  
Noise Exposure ◽  
Low Frequency ◽  
Cross Sectional Study ◽  
Noise Induced Hearing Loss ◽  
Sectional Study ◽  
Cross Sectional ◽  
Exposure Levels

Abstract Background Significant sex differences exist in hearing physiology, while few human studies have investigated sex differences in noise-induced hearing loss (NIHL), and the sex bias in previous studies resulted in inadequate female data. The study aims to investigate sex differences in the characteristics of NIHL to provide insight into sex-specific risk factors, prevention strategies and treatment for NIHL. Methods This cross-sectional study included 2280 industrial noise-exposed shipyard workers (1140 males and 1140 females matched for age, job and employment length) in China. Individual noise exposure levels were measured to calculate the cumulative noise exposure (CNE), and an audiometric test was performed by an experienced technician in a soundproof booth. Sex differences in and influencing factors of low-frequency (LFHL) and high-frequency hearing loss (HFHL) were analyzed using logistic regression models stratified by age and CNE. Results At comparable noise exposure levels and ages, the prevalence of HFHL was significantly higher in males (34.4%) than in females (13.8%), and males had a higher prevalence of HFHL (OR = 4.19, 95% CI 3.18 to 5.52) after adjusting for age, CNE, and other covariates. Sex differences were constant and highly remarkable among subjects aged 30 to 40 years and those with a CNE of 80 to 95 dB(A). Alcohol consumption might be a risk factor for HFHL in females (OR = 3.12, 95% CI 1.10 to 8.89). Conclusions This study indicates significant sex differences in NIHL. Males are at higher risk of HFHL than females despite equivalent noise exposure and age. The risk factors for NIHL might be different in males and females.

scholarly journals OCCUPATIONAL NOISE INDUCED HEARING LOSS: IT’S FREQUENCY & RISK FACTORS

2021 ◽  
Vol 71 (Suppl-3) ◽  
pp. S607-11
Author(s):  
Muhammad Javid Iqbal Pattafi ◽  
Nazia Mumtaz ◽  
Ghulam Saqulain
Keyword(s):  
Risk Factors ◽  
Hearing Loss ◽  
Noise Exposure ◽  
Pure Tone Audiometry ◽  
Cross Sectional Study ◽  
P Value ◽  
Noise Induced Hearing Loss ◽  
Occupational Noise ◽  
Cross Sectional ◽  
Female Ratio

Objective: To determine the frequency and risk factors of occupational noise induced hearing loss. Study Design: Cross sectional study. Place and Duration of Study: Dispensary Unit of Jaith Bhuta Sugar Mill near Rahim Yar Khan, Southern Punjab.from Aug 2017 to Jan 2018. Methodology: This study was conducted using nonprobability consecutive sampling. n=300 workers of bothgenders aged 18-40 years were assessed. Basic demographic parameters, otoscopic examination and Pure Tone Audiometry were used for data collection. The Data was analyzed by using SPSS version 21. Results: Study included 215 (71.7%) males and 85 (28.3%) females with male to female ratio of 2.53: 1 and meanage of 28.34 ± 4.61 years. The frequency rate of hearing impairment (HI) was 90 (30%) out of 300 respondents inthis study. Out of 70 (100%) of respondents were affected with duration of job of 6-10 years. There was significant association between gender, age, education, duration of noise exposure with occupational noise induced hearing loss with p-value <0.001. Conclusion: There was high frequency of occupational noise induced hearing loss (ONIHL) with significantrisk factors being level and duration of exposure to noise (ETN), age, gender, education and hearing protectivedevices (HPD)’s.

scholarly journals Hubungan merokok dengan gangguan pendengaran akibat bising pada pekerja pabrik kelapa sawit X

2018 ◽  
Vol 47 (2) ◽  
pp. 95
Author(s):  
Maesyara Adinda Sari ◽  
Adlin Adnan ◽  
Delfitri Munir ◽  
Putri Chairani Eyanoer
Keyword(s):  
Hearing Loss ◽  
Cigarette Smoking ◽  
Noise Exposure ◽  
Smoking Habit ◽  
Organ Of Corti ◽  
Cross Sectional Study ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional ◽  
Occupational Noise Exposure ◽  
Study Results

Latar belakang: Paparan bising dapat mengakibatkan kerusakan pada organ korti, dan menurunkan aliran darah koklea yang mengakibatkan hipoksia koklea. Merokok diketahui sebagai ototoksik langsung dan pemicu iskemia koklea. Kebiasaan merokok dan paparan bising secara sendiri ataupun secara bersama-sama dapat menyebabkan gangguan pendengaran. Tujuan: Mengetahui hubungan merokok terhadap kejadian gangguan pendengaran akibat bising (GPAB). Metode: Penelitian analitik dengan pendekatan potong lintang. Hasil: Dari 122 pekerja, didapati sebanyak 89,3% pekerja mengalami GPAB. Tuli ringan paling banyak ditemukan (68,8%). Didapatkan adanya hubungan yang signifikan antara tipe perokok dengan derajat beratnya GPAB (p=0,000). Kemungkinan pekerja yg merokok untuk mengalami GPAB 1,224 kali lebih besar dibandingkan dengan pekerja yang tidak merokok (PR=1,224, p=0,002, CI 95%=1,077–1,392). Kesimpulan: Terdapat hubungan yang signifikan antara kebiasaan merokok dengan kejadian GPAB.Kata kunci: Merokok, gangguan pendengaran, gangguan pendengaran akibat bising, bising lingkungan kerja ABSTRACT Introduction: Noise exposure can lead to the organ of corti damage, and decrease the blood flow to the cochlea resulting in cochlear hypoxia. Cigarette smoking could be ototoxic to cochlea, and could evoke cochlear ischemia. Cigarette smoking habit and noise exposure, each or together can cause hearing loss. Objective: To identify the correlation between cigarette smoking and noise induced hearing loss (NIHL). Method: Analytic with a cross-sectional study. Results: From the 122 workers, we found that the proportion of NIHL was 89.3%. Mild deafness was most common (68.8%). We found that there was a significant correlation between type of smokers and grade of hearing loss (p=0.000). Workers who smoked likely to undergo NIHL 1.224 times greater than nonsmokers (PR=1.224, p=0.002, CI 95%=1.077–1.392). Conclusion: There was a significant correlation between cigarette smoking habit and noise induced hearing loss.Keywords : Cigarette smoking, hearing loss, noise induced hearing loss, occupational noise exposure

scholarly journals Screening for Noise-Induced Hearing Loss among Palm Oil Mill Workers in Peninsular Malaysia: A Comparison across Noise Exposure Levels

Standards ◽  
2022 ◽  
Vol 2 (1) ◽  
pp. 32-42
Author(s):  
Sirri Ammar ◽  
Aziah Daud ◽  
Ahmad Filza Ismail ◽  
Ailin Razali
Keyword(s):  
Hearing Loss ◽  
Palm Oil ◽  
Noise Exposure ◽  
High Risk Group ◽  
Vulnerable Groups ◽  
Exposure Level ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional ◽  
Exposure Levels ◽  
Palm Oil Mill

Background: Palm oil mill workers in Malaysia are exposed to hazardous levels of noise in the workplace, and thus are at risk of developing noise-induced hearing loss (NIHL). In 2019, Malaysia introduced a new noise regulation, which reduced the level of permissible noise exposure. Objectives: This study aims to determine the prevalence of NIHL among palm oil mill workers based on screening data and assess the effects of different noise exposure levels on NIHL. Methods: A cross-sectional study was conducted by analyzing data from noise risk assessment reports of selected mills and screening audiometric data from workers. NIHL was defined as bilateral high-frequency hearing loss. Results: The overall NIHL prevalence was 50.8%. Noise exposure level and age were significant predictors of NIHL among the workers. The risk of developing NIHL was high even for workers who were not categorized in the high-risk group. Conclusions: In view of the findings, a precautionary approach is needed when evaluating the risk of NIHL in the study population. Vulnerable groups of workers must be protected from occupational noise hazards through the implementation of effective hearing conservation programs in the workplace.

scholarly journals Prevention of the Evolution of Workers' Hearing Loss from Noise-Induced Hearing Loss in Noisy Environments through a Hearing Conservation Program

2015 ◽  
Vol 20 (01) ◽  
pp. 043-047 ◽  
Author(s):  
Vinicius Fonseca ◽  
Jair Marques ◽  
Flavio Panegalli ◽  
Claudia Gonçalves ◽  
Wesley Souza
Keyword(s):  
Hearing Loss ◽  
Medical Records ◽  
Noise Exposure ◽  
Cross Sectional Study ◽  
Noise Induced Hearing Loss ◽  
Noisy Environments ◽  
Cross Sectional ◽  
Hearing Conservation ◽  
Conservation Program ◽  
Hearing Damage

Introduction Noise-induced hearing loss (NIHL) is a serious problem for workers and therefore for businesses. The hearing conservation program (HCP) is a set of coordinated measures to prevent the development or evolution of occupational hearing loss, which involves a continuous and dynamic process of implementation of hearing conservation routines through anticipation, recognition, evaluation, and subsequent control of the occurrence of existing environmental risks or of those that may exist in the workplace and lead to workers' hearing damage. Objective The aim of this study was to evaluate the effectiveness of the HCP in preventing further hearing loss in workers with audiograms suggestive of NIHL. The audiometric tests and medical records of 28 furniture company workers exposed to noise were reviewed and monitored for 2 years. Methods This retrospective, cross-sectional study examined five audiometric tests in the medical records (on admission and every semester) of 28 workers in a furniture company (totaling 140 audiometric exams) following the introduction of the HCP. Results Data analysis showed no differences between the audiometric tests conducted on admission and those performed every semester. Conclusions The HCP implemented was effective in preventing the worsening of hearing loss in workers already with NIHL when exposed to occupational noise. Therefore, such a measure could be useful for the employment of workers with hearing loss in job sectors that have noise exposure.

Frequency of Noise Induced Hearing Loss in Textile Mill Workers

2021 ◽  
Author(s):  
Azmat Tahira ◽  
Warris Ali ◽  
Ambreen Sadaf ◽  
Maria Shahzadi ◽  
Umair Ahsan ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Cross Sectional Study ◽  
P Value ◽  
Noise Induced Hearing Loss ◽  
Textile Mill ◽  
Chi Square ◽  
Cross Sectional ◽  
Interpersonal Vulnerability

Hearing impairment is a natural ageing as well as the most common reason of disability in the world. Hearing loss can increase the worsening of health quality of life and damaged hearing, which can lead to social behavior, anxiety, interpersonal vulnerability and conflicts for the affected individuals Objectives: The objective of this study is to find out frequency of noise induced hearing loss and its association in textile mill workers. Methods: An analytical cross sectional study was conducted on 125 textile mill workers with nonprobability purposive sampling having 5 to 10 years working experience in spinning and weaving units of age 25 to 40 years (males). Data was collected by performing Otoscopy, tympanometry and pure tone audiometry in noise controlled room, analyzed and evaluated with the help of statistical package for social sciences version 25.00.Pearson chi square was used and P value was equal or less than 5% was taken as significant. Results: Total number of 125(100%) were tested to check their hearing levels by standard pure tone audiometry. Out of 125(100%) 14(11.2 %) were with normal hearing. 28(22.4%) with mild hearing, 36(29%) with mild to moderate hearing, 34(27%) with moderate hearing, 12(10%) with moderately severe hearing and 1(0.8%) with severe hearing levels. Out of 125(100%) 50 (40%) were diagnosed with low level of anxiety, 43(34%) were with moderate level of anxiety and 32(26%) were with severe level of anxiety in all the participants working in the textile mill. Conclusions: It is concluded that the mill workers are on the risk of developing hearing loss of different severity levels which also cause anxiety to them.

scholarly journals Contributions and limitations of using machine learning to predict noise-induced hearing loss

2021 ◽  
Author(s):  
Feifan Chen ◽  
Zuwei Cao ◽  
Emad M. Grais ◽  
Fei Zhao
Keyword(s):  
Machine Learning ◽  
Hearing Loss ◽  
Roc Curve ◽  
Prediction Error ◽  
Noise Exposure ◽  
Model Construction ◽  
Support Vector ◽  
Exposure Level ◽  
Noise Induced Hearing Loss ◽  
Current Review

Abstract Purpose Noise-induced hearing loss (NIHL) is a global issue that impacts people’s life and health. The current review aims to clarify the contributions and limitations of applying machine learning (ML) to predict NIHL by analyzing the performance of different ML techniques and the procedure of model construction. Methods The authors searched PubMed, EMBASE and Scopus on November 26, 2020. Results Eight studies were recruited in the current review following defined inclusion and exclusion criteria. Sample size in the selected studies ranged between 150 and 10,567. The most popular models were artificial neural networks (n = 4), random forests (n = 3) and support vector machines (n = 3). Features mostly correlated with NIHL and used in the models were: age (n = 6), duration of noise exposure (n = 5) and noise exposure level (n = 4). Five included studies used either split-sample validation (n = 3) or ten-fold cross-validation (n = 2). Assessment of accuracy ranged in value from 75.3% to 99% with a low prediction error/root-mean-square error in 3 studies. Only 2 studies measured discrimination risk using the receiver operating characteristic (ROC) curve and/or the area under ROC curve. Conclusion In spite of high accuracy and low prediction error of machine learning models, some improvement can be expected from larger sample sizes, multiple algorithm use, completed reports of model construction and the sufficient evaluation of calibration and discrimination risk.

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