Key result
Long-term NO2 exposure is linked to ~8% higher incident AF risk per 10 μg/m³.
Why the study?
Does long-term exposure to traffic-related air pollution increase the incidence of atrial fibrillation in the general adult population?
Cohort (n=50,399)
Does long-term exposure to traffic-related air pollution increase the incidence of atrial fibrillation in the general adult population?
Answers are grounded in this paper and cite their sources.
Long-term residential exposure to traffic-related air pollution is associated with a modestly increased risk of incident atrial fibrillation in adults.
BACKGROUND: Atrial fibrillation is the most common sustained arrhythmia and is associated with cardiovascular morbidity and mortality. The few studies conducted on short-term effects of air pollution on episodes of atrial fibrillation indicate a positive association, though not consistently. OBJECTIVES: The aim of this study was to evaluate the long-term impact of traffic-related air pollution on incidence of atrial fibrillation in the general population. METHODS: and risk of atrial fibrillation, after adjusting for lifestyle and socioeconomic position. RESULTS: and atrial fibrillation by sex, smoking, hypertension or myocardial infarction. CONCLUSION: We found long-term residential traffic-related air pollution to be associated with higher risk of atrial fibrillation. Accordingly, the present findings lend further support to the demand for abatement of air pollution. Citation: Monrad M, Sajadieh A, Christensen JS, Ketzel M, Raaschou-Nielsen O, Tjønneland A, Overvad K, Loft S, Sørensen M. 2017. Long-term exposure to traffic-related air pollution and risk of incident atrial fibrillation: a cohort study. Environ Health Perspect 125:422-427; http://dx.doi.org/10.1289/EHP392.
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Monrad et al. (2016) conducted a cohort in Incident Atrial Fibrillation (n=50,399). Long-term residential traffic-related air pollution (NO2 and NOx) vs. Lower levels of traffic-related air pollution (lowest quintile or continuous comparison) was evaluated on Incident atrial fibrillation (first hospitalization) (IRR 1.08, 95% CI 1.01-1.14). A 10 μg/m³ higher 10-year time-weighted mean exposure to NO2 increased the risk of incident atrial fibrillation by 8% (IRR 1.08, 95% CI 1.01-1.14).
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