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Environ Health Perspect. 2009 Nov;117(11):1713-7. doi: 10.1289/ehp.0900933. Epub 2009 Jul 20.

Saliva cortisol and exposure to aircraft noise in six European countries.

Author information

1
Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden. jenny.selander@ki.se

Abstract

BACKGROUND:

Several studies show an association between exposure to aircraft or road traffic noise and cardiovascular effects, which may be mediated by a noise-induced release of stress hormones.

OBJECTIVE:

Our objective was to assess saliva cortisol concentration in relation to exposure to aircraft noise.

METHOD:

A multicenter cross-sectional study, HYENA (Hypertension and Exposure to Noise near Airports), comprising 4,861 persons was carried out in six European countries. In a subgroup of 439 study participants, selected to enhance the contrast in exposure to aircraft noise, saliva cortisol was assessed three times (morning, lunch, and evening) during 1 day.

RESULTS:

We observed an elevation of 6.07 nmol/L [95% confidence interval (CI), 2.32-9.81 nmol/L] in morning saliva cortisol level in women exposed to aircraft noise at an average 24-hr sound level (L(Aeq,24h)) > 60 dB, compared with women exposed to L(Aeq,24h) < or = 50 dB, corresponding to an increase of 34%. Employment status appeared to modify the response. We found no association between noise exposure and saliva cortisol levels in men.

CONCLUSIONS:

Our results suggest that exposure to aircraft noise increases morning saliva cortisol levels in women, which could be of relevance for noise-related cardiovascular effects.

KEYWORDS:

cardiovascular disease; gender differences

PMID:
20049122
PMCID:
PMC2801169
DOI:
10.1289/ehp.0900933
[Indexed for MEDLINE]
Free PMC Article

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