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LITERATURE UPDATE Table of Contents   
Year : 2005  |  Volume : 7  |  Issue : 29  |  Page : 42
Environmental noise induced hearing loss in Nepal


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How to cite this article:
Joshi S K, Devkota S, Chamling S, Shrestha S. Environmental noise induced hearing loss in Nepal. Noise Health 2005;7:42

How to cite this URL:
Joshi S K, Devkota S, Chamling S, Shrestha S. Environmental noise induced hearing loss in Nepal. Noise Health [serial online] 2005 [cited 2023 Mar 22];7:42. Available from: https://www.noiseandhealth.org/text.asp?2005/7/29/42/31884
INTRODUCTION: Noise pollution in urban cities is a serious problem and steadily increasing over the years. This has direct and indirect affect to the people that can lead to the health hazard. OBJECTIVES: To find out environmental noise induced health effect on people residing in an urban community and to predict the risk of the environmental noise induced hearing loss. MATERIALS AND METHODS: One hundred fifty questionnaires were filled up for the environmental noise pollution survey. For the case control study, 36 exposed and 25 non-exposed residents of Kupondole were included. Based on the place of residence (main road and 20 min. walking distance from the main road), subjects were divided into exposed and non-exposed group concerning environmental noise. Demographic data and information about health problems was obtained by a structured interview. Audiometric test was performed using manual audiometer. Odds ratios (OR) and their 95% confidence intervals (95% CI) for noise induced hearing loss were estimated using logistic regression. Adjustment for occupational noise was done. RESULTS: The major health effect induced by the environmental noise was observed as lack of concentration followed by irritation, fatigue and headache. The crude OR and 95% CI for the exposed subjects was 4.2 (1.4, 12). After adjustment for occupational noise, the OR (95% CI) was 4.0 (1.2, 13). CONCLUSION: This study shows that exposure to noise causes wide range of health effects. For the exposed subjects there was an increased risk of noise induced hearing loss. The risk was significantly increased also after adjusting for occupational noise.

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S K Joshi

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Source of Support: None, Conflict of Interest: None

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