Long-term air pollution exposure and diabetes in a population-based Swiss cohort

Eze, Ikenna C. and Schaffner, Emmanuel and Fischer, Evelyn and Schikowski, Tamara and Adam, Martin and Imboden, Medea and Tsai, Ming and Carballo, David and von Eckardstein, Arnold and Künzli, Nino and Schindler, Christian and Probst-Hensch, Nicole. (2014) Long-term air pollution exposure and diabetes in a population-based Swiss cohort. Environment international : a journal of environmental science, risk and health, 70. pp. 95-105.

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Official URL: http://edoc.unibas.ch/dok/A6271936

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Air pollution is an important risk factor for global burden of disease. There has been recent interest in its possible role in the etiology of diabetes mellitus. Experimental evidence is suggestive, but epidemiological evidence is limited and mixed. We therefore explored the association between air pollution and prevalent diabetes, in a population-based Swiss cohort. We did cross-sectional analyses of 6392 participants of the Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults [SAPALDIA], aged between 29 and 73years. We used estimates of average individual home outdoor PM10 [particulate matter >10μm in diameter] and NO2 [nitrogen dioxide] exposure over the 10years preceding the survey. Their association with diabetes was modeled using mixed logistic regression models, including participants' study area as random effect, with incremental adjustment for confounders. There were 315 cases of diabetes (prevalence: 5.5% [95% confidence interval (CI): 2.8, 7.2%]). Both PM10 and NO2 were associated with prevalent diabetes with respective odds ratios of 1.40 [95% CI: 1.17, 1.67] and 1.19 [95% CI: 1.03, 1.38] per 10μg/m(3) increase in the average home outdoor level. Associations with PM10 were generally stronger than with NO2, even in the two-pollutant model. There was some indication that beta blockers mitigated the effect of PM10. The associations remained stable across different sensitivity analyses. Our study adds to the evidence that long term air pollution exposure is associated with diabetes mellitus. PM10 appears to be a useful marker of aspects of air pollution relevant for diabetes. This association can be observed at concentrations below air quality guidelines.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Chronic Disease Epidemiology > Air Pollution and Health (Künzli)
03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Air Pollution and Health (Künzli)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
UniBasel Contributors:Fischer, Evelyn and Schindler, Christian and Probst Hensch, Nicole and Künzli, Nino and Eze, Ikenna C.
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:20 Oct 2017 13:58
Deposited On:18 Jul 2014 09:10

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