This new study is based on a representative sample of the US population, that is 6307 participants of the National Health and Nutrition Examination Survey 1999-2004, older than 20 and employed. The exposure, or lack of, to significant noise nuisances in the workplace was assessed by the respondents.
The study shows that subjects chronically exposed to occupational noise have a 2-3-fold increased prevalence of angina pectoris, myocardial infarction, coronary heart disease and hypertension. This cause and effect link is particularly strong for participants younger than 50, men and smokers. Occupational noise must therefore be considered as a public health issue.
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