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Associations between ambient air pollution and noise from road traffic with blood pressure and insulin resistance in children from Denmark

Pedersen, Marie, Halldorsson, Thorhallur I., Ketzel, Matthias, Grandström, Charlotta, Raaschou-Nielsen, Ole, Jensen, Steen S., Grunnet, Louise G., Vaag, Allan, Sørensen, Mette and Olsen, Sjurdur F. (2019) Associations between ambient air pollution and noise from road traffic with blood pressure and insulin resistance in children from Denmark Environmental Epidemiology, 3 (5), e069. pp. 1-7.

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Background: Road traffic is a major source of air pollution and noise. Both exposures may contribute to increased blood pressure and metabolic disease; however, few studies have examined these relationships in children.

Objectives: We aimed to investigate whether long-term exposures to air pollution and noise from road traffic were associated with increased blood pressure and insulin resistance in children.

Methods: Cardiometabolic outcomes were derived from a follow-up examination of 629 children (10–15 years old) enrolled in the Danish National Birth Cohort. We evaluated associations with prenatal and postnatal residential exposure to nitrogen dioxide (NO2) and noise from road traffic (Lden) using historical addresses and linear regression models.

Results: A 10-unit increase in postnatal exposure to NO2 and Lden was associated with a 0.31 (−0.87, 1.48) and 0.18 (−0.61, 0.96) mmHg changes in diastolic blood pressure, respectively. In contrast, both exposures were associated with decreased systolic blood pressure. After adjustment and mutual adjustment for NO2, exposure to Lden was associated with a statistical significant decrease in systolic blood pressure both during prenatal and postnatal life, but the majority of the associations evaluated did not reach statistical significance. Inverse associations were observed for plasma fasting glucose, insulin, and HOMA of insulin resistance for both exposures, exposure windows, before and after adjustment.

Conclusions: The findings do not support evidence of associations between long-term exposures to air pollution and road traffic noise, increased blood pressure, and a metabolic profile characteristic of increased risk for glucose intolerance or type 2 diabetes later in life.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
Pedersen, Marie
Halldorsson, Thorhallur I.
Grandström, Charlotta
Raaschou-Nielsen, Ole
Jensen, Steen S.
Grunnet, Louise G.
Vaag, Allan
Sørensen, Mette
Olsen, Sjurdur F.
Date : 30 September 2019
DOI : 10.1097/EE9.0000000000000069
Copyright Disclaimer : This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0, where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially.
Depositing User : Clive Harris
Date Deposited : 08 Nov 2019 13:01
Last Modified : 08 Nov 2019 13:01

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