The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis
Background: Chemical substances can negatively affect the auditory system. Chemical substances alone or combined with high-level noise have recently become a major concern as a cause of occupational hearing loss. Objective: To assess the combined effect of solvents and noise versus solvents only, o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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AOSIS
2019-05-01
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| Series: | South African Journal of Communication Disorders |
| Subjects: | |
| Online Access: | https://sajcd.org.za/index.php/sajcd/article/view/568 |
| _version_ | 1818304666736263168 |
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| author | Faatima Nakhooda Benn Sartorius Samantha M. Govender |
| author_facet | Faatima Nakhooda Benn Sartorius Samantha M. Govender |
| author_sort | Faatima Nakhooda |
| collection | DOAJ |
| description | Background: Chemical substances can negatively affect the auditory system. Chemical substances alone or combined with high-level noise have recently become a major concern as a cause of occupational hearing loss.
Objective: To assess the combined effect of solvents and noise versus solvents only, or noise only, on the auditory function of workers.
Method: Published articles which included noise and/or solvent exposure or combined effects of solvents and noise, studies conducted on human beings only and the use of audiological tests on participants.
Results: Thirteen papers were eligible for inclusion. The participants’ ages ranged from 18 to 68 years. Results revealed that 24.5% presented with hearing loss as a result of noise exposure only; 18% presented with hearing loss owing to solvent exposure only; and a total of 43.3% presented with hearing loss owing to combined noise and solvent exposure. Furthermore, the prevalence of hearing loss in the noise and solvent group was significantly (p < 0.001) higher than the other groups in 10 out of the 13 studies analysed, with a pooled odds ratio (OR) of 2.754. Of the 178 participants (total of all participants exposed to solvents), a total of 32 participants presented with auditory pathology as a result of exposure to solvents only. There was a significantly higher pooled odds of hearing loss in noise and solvent-exposed group compared to solvent-only group (pooled OR = 2.15, 95% CI: 1.24–3.72, p = 0.006).
Conclusion: The findings revealed significantly higher odds of acquiring hearing loss when workers were exposed to a combination of solvents and noise as opposed to solvents only, motivating for its inclusion into hearing conservation programmes. |
| first_indexed | 2024-12-13T06:14:20Z |
| format | Article |
| id | doaj.art-3fa9528f2263433bafe3933e4efe0683 |
| institution | Directory Open Access Journal |
| issn | 0379-8046 2225-4765 |
| language | English |
| last_indexed | 2024-12-13T06:14:20Z |
| publishDate | 2019-05-01 |
| publisher | AOSIS |
| record_format | Article |
| series | South African Journal of Communication Disorders |
| spelling | doaj.art-3fa9528f2263433bafe3933e4efe06832022-12-21T23:57:00ZengAOSISSouth African Journal of Communication Disorders0379-80462225-47652019-05-01661e1e1110.4102/sajcd.v66i1.568498The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysisFaatima Nakhooda0Benn Sartorius1Samantha M. Govender2Discipline of Audiology, School of Health Sciences, University of KwaZulu-Natal, DurbanSchool of Nursing and Public Health, University of KwaZulu-Natal, DurbanDiscipline of Audiology, School of Health Sciences, University of KwaZulu-Natal, DurbanBackground: Chemical substances can negatively affect the auditory system. Chemical substances alone or combined with high-level noise have recently become a major concern as a cause of occupational hearing loss. Objective: To assess the combined effect of solvents and noise versus solvents only, or noise only, on the auditory function of workers. Method: Published articles which included noise and/or solvent exposure or combined effects of solvents and noise, studies conducted on human beings only and the use of audiological tests on participants. Results: Thirteen papers were eligible for inclusion. The participants’ ages ranged from 18 to 68 years. Results revealed that 24.5% presented with hearing loss as a result of noise exposure only; 18% presented with hearing loss owing to solvent exposure only; and a total of 43.3% presented with hearing loss owing to combined noise and solvent exposure. Furthermore, the prevalence of hearing loss in the noise and solvent group was significantly (p < 0.001) higher than the other groups in 10 out of the 13 studies analysed, with a pooled odds ratio (OR) of 2.754. Of the 178 participants (total of all participants exposed to solvents), a total of 32 participants presented with auditory pathology as a result of exposure to solvents only. There was a significantly higher pooled odds of hearing loss in noise and solvent-exposed group compared to solvent-only group (pooled OR = 2.15, 95% CI: 1.24–3.72, p = 0.006). Conclusion: The findings revealed significantly higher odds of acquiring hearing loss when workers were exposed to a combination of solvents and noise as opposed to solvents only, motivating for its inclusion into hearing conservation programmes.https://sajcd.org.za/index.php/sajcd/article/view/568Solventssolvent induced hearing LossSIHLototoxicitynoise Induced hearing loss. |
| spellingShingle | Faatima Nakhooda Benn Sartorius Samantha M. Govender The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis South African Journal of Communication Disorders Solvents solvent induced hearing Loss SIHL ototoxicity noise Induced hearing loss. |
| title | The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis |
| title_full | The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis |
| title_fullStr | The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis |
| title_full_unstemmed | The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis |
| title_short | The effects of combined exposure of solvents and noise on auditory function – A systematic review and meta-analysis |
| title_sort | effects of combined exposure of solvents and noise on auditory function a systematic review and meta analysis |
| topic | Solvents solvent induced hearing Loss SIHL ototoxicity noise Induced hearing loss. |
| url | https://sajcd.org.za/index.php/sajcd/article/view/568 |
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