Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine
Background: Noise is one of the most pervasive hazards in industrial settings. This retrospective study was carried out to assess the effects of noise exposure on hearing status, blood lipids and blood pressure of employees of a local fireclay mine.Methods: Two hundred and forty male workers were st...
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| Format: | Article |
| Language: | English |
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Shiraz University of Medical Sciences
2014-07-01
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| Series: | Journal of Health Sciences and Surveillance System |
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| Online Access: | http://jhsss.sums.ac.ir/article_42758_df80bc3f4fb1bb0b542ebc09d5e51e76.pdf |
| _version_ | 1818987981923418112 |
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| author | Masoud Neghab Hamid Karimi Sayed Hamidreza Tabatabaee Esmaeel Soleimani Abas Ali Kasaeinasab |
| author_facet | Masoud Neghab Hamid Karimi Sayed Hamidreza Tabatabaee Esmaeel Soleimani Abas Ali Kasaeinasab |
| author_sort | Masoud Neghab |
| collection | DOAJ |
| description | Background: Noise is one of the most pervasive hazards in industrial settings. This retrospective study was carried out to assess the effects of noise exposure on hearing status, blood lipids and blood pressure of employees of a local fireclay mine.Methods: Two hundred and forty male workers were studied. Data on audiometric measurements, blood lipids and blood pressure were derived from the workers’ medical records and analyzed. Furthermore, area noise measurements were performed. Data were analyzed using SPSS version 16.0.Results: Workers were exposed to a mean noise level of 91±15 dB. The means of triglyceride (TG), total cholesterol (TC), systolic and diastolic blood pressure (SBP and DBP) were within the normal range for the first three years of the study. However, a slight, non-significant increase in TG level was noted in 2010. Most of the participants (63.6%) suffered from moderate hearing loss (HL). About 23.6% and 12.7% of the employees had developed severe and mild HL, respectively. A statistically significant difference was noted in the number of workers with high-frequency noise-induced HL. Furthermore, a statistically significant association was found between the mean of high frequency HL and log-transformed TG values in 2009 and 2010.Conclusions: High frequency HL could be used as a biomarker for identifying workers exposed to excessive noise levels. High frequency HL developed over a 4-year exposure to noise was associated with hyper triglyceridemia. Implementing a hearing conservation program seems to be mandatory to prevent further increases in the number of workers who are already in the severe HL group. |
| first_indexed | 2024-12-20T19:15:20Z |
| format | Article |
| id | doaj.art-1f4d3851672148408198ad70036b94e4 |
| institution | Directory Open Access Journal |
| issn | 2345-2218 2345-3893 |
| language | English |
| last_indexed | 2024-12-20T19:15:20Z |
| publishDate | 2014-07-01 |
| publisher | Shiraz University of Medical Sciences |
| record_format | Article |
| series | Journal of Health Sciences and Surveillance System |
| spelling | doaj.art-1f4d3851672148408198ad70036b94e42022-12-21T19:29:07ZengShiraz University of Medical SciencesJournal of Health Sciences and Surveillance System2345-22182345-38932014-07-012310711242758Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay MineMasoud Neghab0Hamid Karimi1Sayed Hamidreza Tabatabaee2Esmaeel Soleimani3Abas Ali Kasaeinasab4Department of Occupational Health Engineering, School of Health, and Research Center for Health Sciences, Shiraz University of Medical Sciences, Shiraz, Iran;Student’s Research Committee, Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, IranStudent’s Research Committee, Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;Student’s Research Committee, Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;Background: Noise is one of the most pervasive hazards in industrial settings. This retrospective study was carried out to assess the effects of noise exposure on hearing status, blood lipids and blood pressure of employees of a local fireclay mine.Methods: Two hundred and forty male workers were studied. Data on audiometric measurements, blood lipids and blood pressure were derived from the workers’ medical records and analyzed. Furthermore, area noise measurements were performed. Data were analyzed using SPSS version 16.0.Results: Workers were exposed to a mean noise level of 91±15 dB. The means of triglyceride (TG), total cholesterol (TC), systolic and diastolic blood pressure (SBP and DBP) were within the normal range for the first three years of the study. However, a slight, non-significant increase in TG level was noted in 2010. Most of the participants (63.6%) suffered from moderate hearing loss (HL). About 23.6% and 12.7% of the employees had developed severe and mild HL, respectively. A statistically significant difference was noted in the number of workers with high-frequency noise-induced HL. Furthermore, a statistically significant association was found between the mean of high frequency HL and log-transformed TG values in 2009 and 2010.Conclusions: High frequency HL could be used as a biomarker for identifying workers exposed to excessive noise levels. High frequency HL developed over a 4-year exposure to noise was associated with hyper triglyceridemia. Implementing a hearing conservation program seems to be mandatory to prevent further increases in the number of workers who are already in the severe HL group.http://jhsss.sums.ac.ir/article_42758_df80bc3f4fb1bb0b542ebc09d5e51e76.pdfFireclay MineNoiseOccupational ExposureHypertensionBlood Lipids |
| spellingShingle | Masoud Neghab Hamid Karimi Sayed Hamidreza Tabatabaee Esmaeel Soleimani Abas Ali Kasaeinasab Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine Journal of Health Sciences and Surveillance System Fireclay Mine Noise Occupational Exposure Hypertension Blood Lipids |
| title | Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine |
| title_full | Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine |
| title_fullStr | Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine |
| title_full_unstemmed | Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine |
| title_short | Effects of Occupational Noise Exposure on Hearing Status, Blood Lipid and Hypertension Levels in Workers of a Fireclay Mine |
| title_sort | effects of occupational noise exposure on hearing status blood lipid and hypertension levels in workers of a fireclay mine |
| topic | Fireclay Mine Noise Occupational Exposure Hypertension Blood Lipids |
| url | http://jhsss.sums.ac.ir/article_42758_df80bc3f4fb1bb0b542ebc09d5e51e76.pdf |
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