Relationship between occupational noise exposure and the risk factors of cardiovascular disease in China

Abstract

Background:At present, occupational noise exposure has become one of the risk factors of occupational workers and attracted serious concerned of most of occupational disease researchers. To assess associations of occupational noise exposure and cardiovascular disease by meta-analysis.Methods and analysis:Results from primary studies about occupational noise and cardiovascular disease (2000–2017) were retrieved from literatures, which were conducted in China only. Both random and fixed effect model were used to calculate pooled odds ratio (OR) and their corresponding 95% confidence interval (CI). Review Manager and Stata software were used to perform data analysis. This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statements.Results:After applying stringent inclusion and exclusion criteria, 4771 exposures and 3068 controls from 11 primary studies were used to analyze the relationship between occupational noise exposure and cardiovascular disease. The risk of developing high blood pressure for workers exposed to noise is 2.55 times higher than the controls (I2 = 52%, 95% CI: 1.94–3.36), and electrocardiograph (ECG) abnormality is 2.27 times higher than the control groups (I2 = 22%, 95% CI: 1.96–2.62). The bias analysis suggested that there is publication bias, but it didn’t affect the conclusions from trim test.Conclusion:The impact of high-intensity noise exposure on the worker's cardiovascular system is much greater than that of the unexposed control group, and the effect on hypertension of the exposed group is greater than that of the ECG.

Occupational Noise and Hypertension Risk: A Systematic Review and Meta-Analysis

“…In the last decade, four systematic reviews with varying results were published. Pooled risk estimates for the development of arterial hypertension of occupational noise exposed employees were reported to be 1.08 (95% CI 1.05–1.11) [ 28 ], 1.37 (95% CI 1.01–1.87) [ 29 ], 2.55 (95% CI 1.94–3.36) [ 30 ], and 2.56 (95% CI 2.01–3.27) [ 31 ]. None of the studies examined whether workplace noise exposure has a different effect on the risk of hypertension for women and men.…”

“…None of the studies examined whether workplace noise exposure has a different effect on the risk of hypertension for women and men. Furthermore, the following methodological shortcomings may diminish the quality of this summarized evidence [ 31 , 32 , 33 ]: no publication of a study protocol prior to conducting the review [ 28 , 29 , 30 , 31 ]; no doubled screening of studies [ 28 , 29 , 30 , 31 ]; no doubled data extraction [ 29 , 30 , 31 ]; no assessment of study quality [ 29 , 30 , 31 ]; no consideration of study quality in the meta-analysis [ 28 , 29 , 30 , 31 ]; no consideration of the funding agencies [ 29 , 31 ]; no definition of hypertension [ 28 ]; no estimate of publication bias [ 29 , 31 ]; limited publication languages included [ 28 , 29 , 30 ]; limited to studies conducted in certain countries [ 28 , 30 ]; no inclusion of unpublished reports [ 29 , 31 ]; or, no information on conflicts of interest [ 33 ]. Therefore, we decided to conduct an updated systematic review on this topic, and to use methods currently recommended to ensure the quality of summarized evidence [ 34 ].…”

Is it worth to continue to analyse the factors of cardiovascular risk among the sailors? Review of literature

“…Although the authors did not find any research on the population of seafarers that would document an increased cardiovascular risk caused by physical factors, numerous studies on other professional groups confirm the adverse impact of the above factors on the overall risk of CVD [27,30]. During work seafarers are exposed to harmful physical factors [5,31].…”

“…As shown by a Swedish study based on an online questionnaire and covering populations of almost 2000 Swedish seafarers [31], harmful factors most frequently reported by the respondents include noise (83% of employees on the machine deck and over 70% of other employees) and vibrations (over 60% of employees machine deck). It is worth noting that in the case of noise, the adverse effect of exposure involves increasing the risk of obesity, diabetes, depression, sleep disorders and hypertension [27,30]; and in the case of vibrations increasing the risk of sleep disorders and depression [27].…”

Regulation of TGF‑β1 on PI3KC3 and its role in hypertension‑induced vascular injuries

“…Primary hypertension is a common chronic disease of the circulatory system, with an incidence rate of 25.2% in China 2017 (1), which is also a key factor in the mortality of patients with cardiovascular and cerebrovascular diseases. If not properly controlled, primary hypertension may induce stroke, myocardial infarction, heart failure and chronic kidney diseases, leading to high mortality rates and seriously endangering public health (2,3).…”