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In a study Stefan Willich and other researchers from the
Universitätsklinikum der Berliner Charité find out,
that people permanently exposed to noise at work or at home have a high
risk of myocardial infarction. The effect of subjectively felt noise
burden and also the effect of objective levels of noise are investigated
in their study.
The subjective annoyance by noise is only a marginally increased risk.
Only the objective dB-values are relevant. Women and men, who are
exposed to an objectively strong noise in their environment, have both
an increased infarction risk (odds ratios 1.46, 1.02-2.09, P = 0.040 and
3.36, 1.40-8.06, P = 0.007). In respect to work noise men have an
increased risk (odds ratio 1.31, 1.01-1.70, P ¼ 0.045), but not the
women.
The cause of this negative effect of noise on the human heart is not yet
completely known.
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Increased risk of myocardial infarction by noise burden
The study was published in the European Heart Journal, Online-issue from
November 24th 2005 .
Further information about the term Odds Ratio .
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