Relationship between cumulative noise exposure and hypertension among iron and steel production workers
10.11763/j.issn.2095-2619.2016.04.012
- Author:
Xiang-Wen LI
1
;
Jun-Wang TONG
1
;
Jing-Bo YANG
;
Feng CHAI
1
;
Yong-Bin WANG
1
;
Ju-Xiang YUAN
1
Author Information
1. College of Public Health,North China University of Science and Technology Tangshan,Hebei 063000,China
- Publication Type:Journal Article
- Keywords:
Iron and steel enterprise;
Noise;
Hypertension;
Cumulative noise exposure
- From:
China Occupational Medicine
2016;43(04):451-455
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To analyze the relationship between the cumulative noise exposure( CNE) and prevalence of hypertension in iron and steel production workers. METHODS: By convenience sampling method,2 253 workers,whose workplace in an iron and steel enterprise with wet bulb globe temperature index less than 25. 0 ℃,were selected as study subjects. The blood pressure and workplace noise exposure level were measured. According to the equal energy principle,the normalized continuous A-weighted sound pressure level equivalent to an 8 h-working-day and workers' length of service were used to calculate the CNE level. The workers with CNE≥75 d B( A) ·year were regarded as the exposure group,and those with CNE < 75 d B( A) ·year were deemed as the control group. RESULTS: The prevalence rate of hypertension in the exposure group was higher than that of the control group( 32. 3% vs 21. 5%,P < 0. 01). With the increased CNE level,the prevalence rate of hypertension increased( P < 0. 01). The multiple logistic regression analysis results showed that the prevalence risk of hypertension disputed an upward trend of the dose-response relationship following the increasing CNE among the iron and steel production workers( P < 0. 01) after controlling the confounding factors of age,body mass index,educational background,family history of hypertension,smoking,alcohol drinking,salt intake,fried barbecue food intake and so on. CONCLUSION: CNE is a vital factor which influences hypertension prevalence in iron and steel production workers. Strengthen the noise protection is helpful for the prevention and treatment of hypertension in the steel workers.
