Team McCallum

R&D for Lifetime of Life

Noise v heart.

Dr Wen Qi Gan has found that extended exposure to noise at work is linked to an increased rate of a variety of heart illnesses. Previous small studies had suggested this link, but this was the first large scale survey to replicate the findings. 

The researchers analysed 6,300 people in a US National Health and Nutrition Examination Survey.

Loud noise was taken to be where you had to raise your voice to be heard. The researchers compared those currently in noisy jobs to those never in a noisy job (ignoring those who had been in a noisy job but weren’t any longer).

Being in a noisy job raised the risk of coronary heart disease two-fold and angina three-fold.

Most of the people in noisy jobs were men, and men under 50 were particularly at risk.

For men under 50 in noisy jobs, the risk of coronary heart disease increased to 4.3 times that of never noisy, angina to 3.7 times, and heart attack to 4.3 times.

Medical examinations found only one marker that was different for those in noisy jobs.  They were 2.2 times more likely to have isolated diastolic high blood pressure, which has been shown to independently predict coronary heart disease.

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October 11, 2010 - Posted by | CVD - cardiovascular disease, High blood pressure, Success, United States, Work

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