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Occupational noise exposure and sensorineural hearing loss among workers of a steel rolling mill

  • Otology
  • Published:
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Abstract

Hearing loss is one of the most common chronic health conditions and has important implications for the patient’s quality of life. However, hearing loss is substantially underestimated and under treated. The purpose of this study was to determine the prevalence of sensorineural hearing loss among the workers in a steel rolling mill in Nigeria. Each of the 150 randomly selected subjects had a structured questionnaire administered to them, followed by a full otological examination. Of these, 116 had tympanometry and pure-tone audiometry. Also a noise mapping of their respective work units was done. The workers were exposed to noise levels varying from 49  to 93 dBA. About 28.2% of the 103 who had their audiogram analysed had mild to moderate sensorineural hearing loss in their better ear and 56.8% of them had mild to moderate sensorineural hearing loss in their worse ear. The pure-tone average and the average hearing thresholds at 4 kHz for the groups significantly increased with an increasing noise exposure level. The prevalence of sensorineural hearing loss among the study population is high; and noise exposure is at least contributory. Pre-employment and regular audiometry while on the job is highly recommended.

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Authors and Affiliations

  1. Department of Otorhinolaryngology, College of Medicine, University of Ilorin, Ilorin, Nigeria

    Foluwasayo E. Ologe & Toye G. Olajide

  2. Department of Epidemiology/Community Medicine, College of Medicine, University of Ilorin, Ilorin, Nigeria

    Tanimola M. Akande

Authors
  1. Foluwasayo E. Ologe
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  2. Tanimola M. Akande
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  3. Toye G. Olajide
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Correspondence to Foluwasayo E. Ologe.

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Ologe, F.E., Akande, T.M. & Olajide, T.G. Occupational noise exposure and sensorineural hearing loss among workers of a steel rolling mill. Eur Arch Otorhinolaryngol 263, 618–621 (2006). https://doi.org/10.1007/s00405-006-0043-9

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  • DOI: https://doi.org/10.1007/s00405-006-0043-9

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