Conference_programme: 10: Health effects of sound
Lecture: Transportation noise and incidence of hypertension
Author(s): Pyko Andrei, Lind Tomas, Mitkovskaya Natalya, Pershagen Göran, Ögren Mikael, Östenson Claes-Göran, Wallas Alva
Summary:
Background: The evidence on exposure to transportation noise and development of hypertension is inconclusive, mostly because of a lack of good quality studies of longitudinal design. \nObjectives: This cohort study aimed to investigate the association between exposure to road traffic, railway or aircraft noise and incidence of hypertension. We also assessed the effects of varying lengths of the exposure as well as of multiple sources of exposure.\nMethods: Based on the residential histories of a cohort of 4,854 men and women from Stockholm County, we estimated the individual exposure to road traffic, railway and aircraft noise in 1, 5 and 10 year time-periods. Hypertension was assessed by information from blood pressure measurements, questionnaires and hospital diagnoses. Extensive information on potential confounders was available from repeated questionnaires and registers. Hazard Ratios (HR) and 95% confidence intervals (CI) of hypertension related to noise exposure was computed from Cox regression models.\nResults: We observed a positive association between aircraft noise exposure and incidence of hypertension with a HR of 1.16 (95% CI 1.08-1.24) per 10 dB Lden 5-years preceding the event. No clear differences in risk were identified between the three exposure time windows. Road traffic and railway noise were not associated with incidence of hypertension. However, there appeared to be a particularly high risk of hypertension among persons exposed to both aircraft and road traffic noise ≥45 dB Lden with a HR of 1.39 (95% CI 1.14-1.70). \nConclusions: Our results support an association between aircraft noise exposure and incidence of hypertension. \n
Corresponding author
Name: Dr Charlotta Eriksson
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Country: Sweden
