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Long-term air pollution exposure and risk factors for cardiovascular diseases among the elderly in Taiwan
Ist Teil von
Occupational and environmental medicine (London, England), 2011-01, Vol.68 (1), p.64-68
Ort / Verlag
London: BMJ Publishing Group Ltd
Erscheinungsjahr
2011
Quelle
BMJ Journals Archiv - DFG Nationallizenzen
Beschreibungen/Notizen
ObjectivesTo investigate changes in blood pressure, blood lipids, blood sugar and haematological markers of inflammation associated with changes in long-term exposure to ambient air pollutants.MethodsWe conducted secondary analyses of data on blood pressure and blood biochemistry markers from the Social Environment and Biomarkers of Aging Study in Taiwan and air pollution data from the Taiwan Environmental Protection Administration in 2000. Associations of 1-year averaged criteria air pollutants (particulate matter with aerodynamic diameters <10 μm (PM10) and <2.5 μm (PM2.5), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide and carbon monoxide) with systolic blood pressure, diastolic blood pressure, total cholesterol, triglycerides, high-density lipoprotein cholesterol, fasting glucose, haemoglobin A1c (HbA1c), interleukin 6 (IL-6) and neutrophils were explored by applying generalised additive models.ResultsAfter controlling for potential confounders, we observed that increased 1-year averaged particulate air pollutants (PM10 and PM2.5) and NO2 were associated with elevated blood pressure, total cholesterol, fasting glucose, HbA1c, IL-6 and neutrophils. Associations of increased 1-year averaged O3 with elevated blood pressure, total cholesterol, fasting glucose, HbA1c and neutrophils were also observed. In particular, our two-pollutant models showed that PM2.5 was more significantly associated with end-point variables than two gaseous pollutants, O3 and NO2.ConclusionsChanges in blood pressure, blood lipids, blood sugar and haematological markers of inflammation are associated with long-term exposure to ambient air pollutants. This might provide a link between air pollution and atherosclerotic cardiovascular diseases.