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Validation of noise induced hearing loss questionnaire among Malay sawmill workers in Kelantan Malaysia

Mohd Rus, Razman and Naing, Lin and Daud, Aziah and Musa, Kamarul Imran (2010) Validation of noise induced hearing loss questionnaire among Malay sawmill workers in Kelantan Malaysia. International Medical Journal Malaysia, 9 (2). pp. 51-56. ISSN 1823-4631

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Introduction: Exposure to excessive noise is the major avoidable cause of permanent hearing impairment. Sawmill is one of the workplaces where workers are exposed to hazardous noise level. This study was conducted to determine the reliability and validity of noise-induced hearing loss questionnaire among sawmill workers. Materials and Methods: This cross sectional study was conducted in March 2007 among 35 consented sawmill workers. A total of 40 items; 10 items for knowledge (8 areas), 20 items for attitude (7 areas) and 10 items for practice (2 areas) were assessed. Statistical analysis for reliability analysis was test by internal consistency and construct validity by exploratory factor analysis using principal components and Varimax rotation method. Results: Cronbach’s alpha coeffi cients were acceptable for attitude (0.90) and practice (0.75). However, it was low for knowledge (0.67). Exploratory factor analysis showed three meaningful exploratory factors that could explain the three dimensions in the questionnaire. Conclusion: The results of the validation study suggested that the noise-induced hearing loss questionnaire is reliable and valid tool for assessing knowledge, attitude and practice among sawmill workers.

Item Type: Article (Journal)
Additional Information: 5819/3303
Uncontrolled Keywords: Reliability, validity, noise, questionnaire, sawmill workers
Subjects: R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Medicine > Department of Community Health & Family Medicine
Depositing User: Dr Razman Mohd Rus
Date Deposited: 06 Oct 2011 09:15
Last Modified: 18 Jan 2012 14:15
URI: http://irep.iium.edu.my/id/eprint/3303

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