Work in brief
Work in brief
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The relationship between road traffic noise and blood pressure is controversial. Theory has it that stress, arising from persistent exposure to vehicle noise, could cause permanent vascular changes leading to established hypertension, but the evidence supporting this hypothesis is fairly weak. Bluhm et al1 report new findings in a population sample of adults from a Swedish municipality near Stockholm. The diagnosis of hypertension was established by postal questionnaire, while the outdoor equivalent traffic noise level (Leq 24 h) at the residence of each respondent was determined using noise-dispersion models and manual noise assessments. The odds of hypertension increased almost 1.4 fold per 5 A-weighted decibels of increasing noise exposure, associations being stronger in women and in residents living at their current address for more than 10 years. Other associations were found with having a bedroom window facing the street (odds ratio 2.47) and not having triple glazed windows. The findings
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