Hailu, Ashenafi (2015) Assessment of Noise Induced Hearing Loss and Associated Factors among Workers in Akaki Basic Metal Industry, Addis Ababa, Ethiopia. Masters thesis, Addis Ababa University.
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Abstract
Background: - Excessive occupational exposure to noise results in a well-recognized occupational hearing loss and now is taken as a global problem. Worldwide, approximately 600 million workers are exposed and 16% of disabling hearing loss in adults is attributed to occupational noise. However, in developing countries including Ethiopia there is no systematized recording and reporting of noise induced health problems. Objectives: - To assess the magnitude and associated factors of noise induced hearing loss among Akaki basic metal Industry workers, between March and April, 2015. Methodology: - Institutional based cross-sectional study was conducted in Akaki Basic metal Industry. A total of 244 eligible workers were included in study by using simple random sampling from workers` attendance sheet of respective sections. A pre-tested interviewing questionnaire, Environment noise survey, audiometric test were conducted. Epi-Info version 7 software was used for data entry and cleaning and then data exported to SPSS version 21 software for further analysis. Logistic regression model was used to identify factors associated with outcome variable. Results:- Audiometric measurement revealed that the prevalence of noise induced hearing loss in Akaki Basic Metal Industry was 22% (95% CI 17- 27). Previous exposure of noise (AOR = 2.8, 95% CI: 1.032-7.923), service year 11-20 years (AOR = 2.3, 95% CI: 1.078- 6.262) and service years 21-30 years (AOR = 5.2, 95% CI: 2.317- 11.507) when compared with 1-10 years’ service respectively were significantly associated with noise induced hearing loss. But, drinking alcohol (AOR= 1.6, 0.740-3.236) and being hypertensive (AOR = 1.7, CI: 0.800 – 3.776) respectively were not significantly associated with NIHL. The environmental noise level measurement was Mean (SD) of 89 + 13.65 dB A. Conclusion: - The prevalence of hearing loss in Akaki basic metal industry shows significant number with association of level of exposure, previously exposure to noise and duration of exposure. This shows as great effort is needed from administrative of the industry to provide appropriate hearing protective devices based on noise level of sections and change the behavior of workers towards using it, monitor noise level according to the country`s standard and installation of acoustics materials with in the industry to protect the health of workers from noise hazard.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine R Medicine > RA Public aspects of medicine > RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine |
| Divisions: | Africana |
| Depositing User: | Vincent Mpoza |
| Date Deposited: | 02 Jul 2018 10:06 |
| Last Modified: | 02 Jul 2018 10:06 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/6402 |
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