Volume 8, Issue 3 (9-2018)                   JHSW 2018, 8(3): 223-236 | Back to browse issues page

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Abbasi M, Nassiri P, Jaffari Talaar poshti R, Taghavi S M, Aarabi S, Fallah Madvari R, et al . Investigation the relationship between occupational noise exposure and noise annoyance with blood pressure, serum cholesterol and triglyceride levels among workers of a textile industry. JHSW. 2018; 8 (3) :223-236
URL: http://jhsw.tums.ac.ir/article-1-5904-en.html
1- M.Sc., Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran. M.Sc., Student’s Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
2- Professor, Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3- B.Sc., Department of Occupational Health, School of Public Health, Mazandaran, University of Medical Sciences, Sari, Iran
4- M.Sc., Audiology Department, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
5- M.Sc., Student Research Committee, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
6- Associated Professor, Environmental and Occupational Health Research Center Shahroud University of Medical Sciences, Shahroud, Iran
7- Instructor, Department of Occupational Health, School of Public Health, Zabol University of Medical Sciences, Zabol, Iran , occmgh@gmail.com
Abstract:   (579 Views)

Introduction: Chronic occupational noise exposure may constitute a risk factor for cardiovascular disease for workers. The aim of this study was to investigate the relationship between occupational noise exposure and noise annoyance with blood pressure, serum cholesterol and triglyceride levels in workers of a textile industry.

Material and Method: This cross-sectional study was carried out among 220 employees of Savadkouh textile industry complex in Mazandaran province, Iran in 2017. To achieve the study objectives, the 8 -hour equivalent sound exposure level was measured and the cumulative noise exposure was calculated. Based on noise exposure level, workers were divided into control and case groups. Then, blood pressure was measured and blood samples were collected from each individual for determination of the serum cholesterol and triglyceride levels and they were transfered to the laboratory for further analysis. The noise annoyance scale and socio-demographic questionnaire were used to collect noise annoyance and other background and demographic information, respectively. Finally, Paired t-test, one-way ANOVA and multivariate regression were used to study the relationship between variables using SPSS Version 20.

Result: In total, 159 workers participated in this study considering the inclusion and exclusion criteria. Eighty-three participants were exposed to more than or equal to 85 dBA, and 76 person were exposed to less than 85 dBA noise level, respectively. The results showed that mean blood pressure and cholesterol were significantly different between the control and case groups (P-value< 0.05). Based on multivariate regression results, noise exposure, cumulative noise exposure (CNE) and noise annoyance had a significant effect on blood pressure (P-value< 0.001).  Cholesterol was also significantly affected by noise exposure and noise annoyance (P-value< 0.005).

Conclusion: Based on the results of current study, noise can be considered as a risk factor for cardiovascular disease ampong workers. Actually, high intensity noise affect serum cholesterol and blood pressure directly, and may do indirectly by causing noise annoyance which acts as a mediator. Therefore, it seems necessary to conduct a controlled cohort study to investigating the interactions among whole variables of interest.

Full-Text [PDF 549 kb]   (222 Downloads)    
Type of Study: Research | Subject: Special
Received: 2018/09/26 | Accepted: 2018/09/26 | Published: 2018/09/26

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