The brand new constant visibility off audio in office environment, the high frequency out of blood pressure internationally, the biological plausibility of your own organization between audio publicity and you will highest blood pressure together with dependence on alot more training examining the brand new non-auditory negative effects of exposures so you can lower than 85 dB(A), was in fact the reason why that provided us to establish this research.
Research structure and populace
To handle a portion of the case of the new connection anywhere between sounds publicity and you can hypertension, we performed a mix-sectional studies type of existent additional health and audio coverage research regarding 2007 about workers out-of a great petrochemical and you can energy refinery inside Rio de Janeiro, Brazil.
The newest read device keeps two types of work force: contractors (specialists paid off of the authorities) and you can sandwich-builders (workers paid down of the outsourcing companies). Both workforces is susceptible to other labor rules as well as contracted out firms have to would pre-entryway and you will yearly fitness examination in any personnel. Subcontracted work force was concentrating on new bush repair and you can expansion, when you are government gurus was indeed much more involved in management work throughout the bush. We used the six-week schedule in order to guarantee the very least age of appears exposure till the analysis off hypertension. Continue Reading