Publications

These publications are examples of research made possible with data from CanPath and its regional cohorts.

2021

Long-term exposure to air pollution and mortality in a prospective cohort: The Ontario Health Study

Authors: Zhang, Z., Wang, J., Kwong, J. C., Burnett, R. T., van Donkelaar, A., Hystad, P., Martin, R. V., Bai, L., McLaughlin, J., & Chen, H.

The researchers investigated the association between long-term exposure to air pollution and mortality using data from 88,615 participants in the Ontario Health Study from 2009 to 2017. They assessed exposure to fine particulate matter (PM2.5) and nitrogen dioxide (NO2) at participants’ residences and analyzed non-accidental, cardiovascular, and respiratory mortality risks using Cox proportional hazard models. Stronger associations were observed among physically active participants, smokers, and individuals with lower household income. These findings suggest that further improvements in air quality may reduce mortality risk, even in regions with low air pollution levels.

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