Abstract
Background: Little information exists on the lipidemic effects of air pollution, particularly in developing countries. We aimed to investigate the associations of long-term exposure to ambient air pollutants with lipid levels and dyslipidemias in China. Methods: In 2009, a total of 15,477 participants aged 18-74 years were recruited from the 33 Communities Chinese Health Study conducted in three Northeastern China cities. Total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were measured in participants' blood specimens. Three year (2006-08) average air pollution concentrations were assessed using data from 33 communities (particles with diameters <= 1.0 mu m (PM1) and <= 2.5 mu m (PM2.5) were predicted using a spatial statistical model) or 11 air monitoring stations (particles with diameters <= 10 mu m (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), and ozone (O-3)). Associations were evaluated by two-level logistic and generalized linear regression models. Results: We detected many significant associations between exposure to air pollutants (especially for PM1 and PM2.5) and blood lipid levels. Most of the associations suggested deleterious effects on blood lipid markers (e.g., a 10 mu g/m(3) increase in PM1 was associated with 1.6% (95% confidence interval (CI): 1.1, 2.0), 2.9% (95% CI: - 3.3, 9.3), and 3.2% (95% CI: 2.6, 3.9) higher levels of TC, TG, and LDL-C, respectively, but 1.4% (95% CI: - 1.8, -0.9) lower HDL-C levels), although beneficial associations were found for O-3. In analysis with dyslipidemias, all the observed associations suggested deleterious lipidemic effects of air pollutants, and no significant beneficial association was observed for O-3. Stratified analyses showed that the associations were stronger in overweight or obese participants;sex and age modified the associations, but the pattern of effects was mixed. Conclusions: Long-term ambient air pollution was associated with both altered lipid profiles and dyslipidemias, especially among overweight or obese participants.
Dokumententyp: | Zeitschriftenartikel |
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Fakultät: | Medizin > Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin |
Themengebiete: | 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit |
ISSN: | 0160-4120 |
Sprache: | Englisch |
Dokumenten ID: | 65162 |
Datum der Veröffentlichung auf Open Access LMU: | 19. Jul. 2019, 12:16 |
Letzte Änderungen: | 23. Jul. 2024, 09:20 |