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

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.

2014 ◽  
Vol 9 (1) ◽  
pp. 19-24
Author(s):  
MR Alam ◽  
MA Wahab ◽  
MM Rahman ◽  
AKM Asaduzzaman ◽  
MAS Al-Azad ◽  
...  

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


Author(s):  
Citra Dwi Novastuti ◽  
Nyilo Purnami ◽  
Nugraenny Affianti

Background and Objectives The airport ground handling workers are most vulnerable to noise exposure from the sound of aircraft engines that are quite loud and, if exposed continuously, they may experience hearing loss. This study describes the profile of noise induced hearing loss in ground handling workers at Juanda Airport Surabaya.Subjects and Method The descriptive cross sectional approach is employed, and the noise level in the work environment is measured by airport apron, physical ear examination, distortion product otoacoustic emission (DPOAE) and pure tone audiometry, which were conducted for 89 ground handling workers at the airport.Results The age range that experienced hearing loss the most is 50-59 years (19.10%). The male: female ratio of subjects who experienced hearing loss was 50%:53.24%. The highest percentage of subjects with hearing loss was found in the Area II (export-import cargo) with 68%. Workers who experience hearing loss the most have been working for 17-21 years (76%). The ratio of hearing loss between continuous users of ear protectors and occasional or non-users of protectors was 22.47%:30.34%. Of the 89 total research subjects, 47 were found with hearing based on the DPOAE refer results; of these subjects, 30 (33.7%) experienced hearing loss due to noise (NIHL), 9 suffered in the right ear (10.11%), 9 in the left ear (10.11%) and 12 in both ears (13.48%).Conclusion Based on the DPOAE results, 52.81% of the ground handling workers at Juanda airport Surabaya were found with hearing loss; of these workers, 33.7% workers experienced NIHL with 10.11% observed in each ear and 13.48% in both ears.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Qixuan Wang ◽  
Xueling Wang ◽  
Lu Yang ◽  
Kun Han ◽  
Zhiwu Huang ◽  
...  

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.


Author(s):  
Azmat Tahira ◽  
Warris Ali ◽  
Ambreen Sadaf ◽  
Maria Shahzadi ◽  
Umair Ahsan ◽  
...  

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.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ahmed Kh. Mohammed Almaawi

Objective: To assess CKD prevalence and risk factors including socio-demography among diabetics by estimating GFR rather than serum creatinine (sCr). Methods: A cross-sectional study was conducted in Dec. 15 2019 through Aug. 15 2020, among 800 diabetics attending tertiary diabetes centers, Baghdad. Data was collected by self-administered questionnaire. SPSS was used for data analysis by (mean, standard deviation and T-test) for quantitative variables and (frequency, percentage, Chi-square test and Kappa index) for qualitative variables. P-Value less than 0.05 was considered significant.  Results: 800 diabetics for last 5-40 years, 95.6% with type2. Aged 52.1±13.2 years, with male: female ratio 1.03:1, 63.6% were with no income, sCr level was 0.86±0.3 mg/dl, and eGFR by Cockcroft Gault (CG) and CKD-EPI equations was 100.4±36.5 & 92.2±25.5 ml/min/1.73m2 respectively. CKD prevalence based on sCr, and eGFR assessed by above equations was 13.3%, 20% and 15.9% respectively (p<0.001). Those with CKD were hypertensive, females, and living in peripheries. Conclusions: Diabetic patients, mainly those with risk factors are more likely to develop CKD. It is better to detect CKD intially by estimating the GFR, rather than serum creatinine level alone. Furthermore, using CKD-EPI equation might be better than the CG formula to estimate the GFR.


2012 ◽  
Vol 19 (Number 2) ◽  
pp. 7-11
Author(s):  
Md. M Rahman ◽  
Md. Daulatuzzaman ◽  
N Khan

A cross sectional study was done in the department of otolaryngology of Central Police Hospital. Rajarbagh, Dhaka., during the period of January 2005 to December 2007 to find out noise induced hearing loss of traffic polices and to raise awareness for early diagnosis and treatment and also preventive measures of noise induced hearing loss. 'Thirty patients who were diagnosed as a case of hearing impairment by detailed history, clinical examination and related investigations were included in the study who were exposed to noise 0-20 years. Common chief complaints of the patients were impairment of hearing (100%), Minims (50%), dizziness (20%), aural discharge (6.66)%. Medical history of 11w patients were diabetes (6.66%) and hypertension (26.66 %). 40 % patients were smoker and 60 % patients were non smoker. A ssoc jar ed other disease like chronic supporative otitis media (CSOM) t vas present in 13.33 %. Pure tone audiometry revealed normal hearing 3.3 %, conductive hearing loss 10 %, sensorineural hearing loss 73.33 %, mixed hearing loss 13.33 % and normal hearing 6.66 %, mild hearing loss 50 To, moderate type of hearing loss 36.66 % and moderately severe 3.33 %, severe hearing loss were 3.33 %. Treatment of the patients were given by vitamin 13,, Lli, B6, cochlear vasodilators such as vinpocetine and hearing aids. Patients were advised to Hume to other department of police service. those traffic police persons are vulnerable of noise induced hearing loss determined by patients complain, clinical examination and investigations like PTA, were advised to be changed to other department of police service.


2012 ◽  
Vol 9 (4) ◽  
pp. 274-278 ◽  
Author(s):  
I Shrestha ◽  
B L Shrestha ◽  
M Pokharel ◽  
R C M Amatya ◽  
D R Karki

Background Noise induced hearing loss (NIHL) is a major preventable occupational health hazard. Objective To measure permanent threshold shift in traffic police personnel due to noise exposure and to examine whether it was associated with duration of noise exposure, years of work and risk factors. Methods Cross sectional, descriptive study conducted at Dhulikhel hospital, Kathmandu University Hospital in 110 responding traffic police personnel. Detailed history and clinical examination of ear, impedence audiometry and pure tone audiometry was performed. Results Mean age group was 29.82 years; 82(74.5%) were males and 28 (25.5%) were females. Mean duration of service is 11.86 years. Twenty six (23.6%) had tinnitus and 39(35.5%) had blocked sensation in ear. Sixty five (59.1%) worked between 10-19 years. Alcohol and smoking shows positive impact on NIHL (p value =0.00). Odds ratio with 95% confidence interval were 4.481 (1.925-10.432) and 6.578 (2.306-18.764) respectively. Among 73(66.4%) noise induced hearing loss positive cases, bilateral involvement was seen in 45 (40.9%) and unilateral in 28(25.4 %) cases. Among unilateral cases most were left sided. Hearing threshold at 4 kHz increased according to age and duration of service. Conclusion Traffic police personnel are in constant risk of noise induced hearing loss. Screening for hearing loss is recommended for people exposed to noise.DOI: http://dx.doi.org/10.3126/kumj.v9i4.6343 Kathmandu Univ Med J 2011;9(4):274-8


BDJ Open ◽  
2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Bander M Alabdulwahhab ◽  
Raneem I Alduraiby ◽  
May A Ahmed ◽  
Lamya I Albatli ◽  
Maram S Alhumain ◽  
...  

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