Exposure to road traffic and railway noise and associations with blood pressure and self-reported hypertension: a cohort study
Open Access
- 28 October 2011
- journal article
- research article
- Published by Springer Science and Business Media LLC in Environmental Health
- Vol. 10 (1), 92
- https://doi.org/10.1186/1476-069x-10-92
Abstract
Epidemiological studies suggest that long-term exposure to transport noise increases the risk for cardiovascular disorders. The effect of transport noise on blood pressure and hypertension is uncertain. In 1993-1997, 57,053 participants aged 50-64 year were enrolled in a population-based cohort study. At enrolment, systolic and diastolic blood pressure was measured. Incident hypertension during a mean follow-up of 5.3 years was assessed by questionnaire. Residential long-term road traffic noise (Lden) was estimated for 1- and 5-year periods preceding enrolment and preceding diagnosis of hypertension. Residential exposure to railway noise was estimated at enrolment. We conducted a cross-sectional analysis of associations between road traffic and railway noise and blood pressure at enrolment with linear regression, adjusting for long-term air pollution, meteorology and potential lifestyle confounders (N = 44,083). Incident self-reported hypertension was analyzed with Cox regression, adjusting for long-term air pollution and potential lifestyle confounders. We found a 0.26 mm Hg higher systolic blood pressure (95% confidence intervals (CI): -0.11; 0.63) per 10 dB(A) increase in 1-year mean road traffic noise levels, with stronger associations in men (0.59 mm Hg (CI: 0.13; 1.05) per 10 dB(A)) and older participants (0.65 mm Hg (0.08; 1.22) per 10 dB(A)). Road traffic noise was not associated with diastolic blood pressure or hypertension. Exposure to railway noise above 60 dB was associated with 8% higher risk for hypertension (95% CI: -2%; 19%, P = 0.11). While exposure to road traffic noise was associated with systolic blood pressure in subgroups, we were not able to identify associations with hypertension.Keywords
This publication has 44 references indexed in Scilit:
- Transportation Noise and Blood Pressure in a Population-Based Sample of AdultsEnvironmental Health Perspectives, 2012
- Road traffic noise and hypertension: results from a cross-sectional public health survey in southern SwedenEnvironmental Health, 2009
- Acute Effects of Ambient Particulate Matter on Blood PressureHypertension, 2009
- Associations between Recent Exposure to Ambient Fine Particulate Matter and Blood Pressure in the Multi-Ethnic Study of Atherosclerosis (MESA)Environmental Health Perspectives, 2008
- Hypertension and Exposure to Noise Near Airports: the HYENA StudyEnvironmental Health Perspectives, 2008
- Road traffic noise and hypertensionOccupational and Environmental Medicine, 2006
- Choice of time‐scale in Cox's model analysis of epidemiologic cohort data: a simulation studyStatistics in Medicine, 2004
- Dose-Response and Trend Analysis in EpidemiologyEpidemiology, 1995
- Traffic Noise and Cardiovascular Risk: The Speedwell Study, First Phase. Outdoor Noise Levels and Risk FactorsArchives of environmental health, 1993
- Traffic Noise and Cardiovascular Risk. The Caerphilly Study, First Phase. Outdoor Noise Levels and Risk FactorsArchives of environmental health, 1988