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Toxics 2017, 5(4), 27; doi:10.3390/toxics5040027

High Risk Subgroups Sensitive to Air Pollution Levels Following an Emergency Medical Admission

Medical Physics Department, St James’s Hospital (SJH), 8 Dublin, Ireland
Department of Internal Medicine, St James’s Hospital (SJH), 8 Dublin, Ireland
Envo-Geo Environmental Geoinformatics, Cork, Ireland
Authors to whom correspondence should be addressed.
Academic Editor: Gomes João Fernando Pereira
Received: 30 August 2017 / Revised: 4 October 2017 / Accepted: 6 October 2017 / Published: 16 October 2017
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For three cohorts (the elderly, socially deprived, and those with chronic disabling disease), the relationship between the concentrations of particulate matter (PM10), sulphur dioxide (SO2), or oxides of nitrogen (NOx) at the time of hospital admission and outcomes (30-day in-hospital mortality) were investigated All emergency admissions (90,423 episodes, recorded in 48,035 patients) between 2002 and 2015 were examined. PM10, SO2, and NOx daily levels from the hospital catchment area were correlated with the outcomes for the older admission cohort (>70 years), those of lower socio-economic status (SES), and with more disabling disease. Adjusted for acuity and complexity, the level of each pollutant on the day of admission independently predicted the 30-day mortality: for PM10–OR 1.11 (95% CI: 1.08, 1.15), SO2–1.20 (95% CI: 1.16, 1.24), and NOx–1.09 (1.06–1.13). For the older admission cohort (≥70 years), as admission day pollution increased (NOx quintiles) the 30-day mortality was higher in the elderly (14.2% vs. 11.3%: p < 0.001). Persons with a lower SES were at increased risk. Persons with more disabling disease also had worse outcomes on days with higher admission particulate matter (PM10 quintiles). Levels of pollutants on the day of admission of emergency medical admissions predicted 30-day hospital mortality. View Full-Text
Keywords: emergency medical admissions; high risk cohort; PM10; SO2; NOx emergency medical admissions; high risk cohort; PM10; SO2; NOx

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Cournane, S.; Conway, R.; Byrne, D.; O’Riordan, D.; Coveney, S.; Silke, B. High Risk Subgroups Sensitive to Air Pollution Levels Following an Emergency Medical Admission. Toxics 2017, 5, 27.

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