Long-term exposure to particulate matter 2.5 μm (PM2.5) air pollution is associated with an increased risk of lung cancer. However, the evidence is limited in low-income and middle-income countries. We estimated the association between the incidence of lung cancer and PM2.5 air pollution exposure in the Urban Employee Basic Medical Insurance (UEBMI) beneficiaries in China. A total of 16 483 new lung cancer cases diagnosed from 12 966 137 UEBMI beneficiaries from 36 cities between 2013 and 2016. The relative risk for lung cancer associated with a 10 µg/m3 increase in 3-year PM2.5 exposure was 1.12 (95% CI 1.00 to 1.26). The population attributable risk estimated for a reduction in PM2.5 concentration to 35 µg/m3 corresponded to a decrease of 14% in cases of lung cancer. Reducing PM2.5 air pollution has a significant public health benefit.
- lung cancer
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XS and PH are joint senior authors.
ZZ and DZ contributed equally.
Funding This work was supported by the Peking University’s Start-up Fund (BMU2018YJ004)
Competing interests None declared.
Patient consent for publication Not required.
Ethics approval The study was deemed as exempt from ethical approval by the institutional review board of the Beijing University of Chinese medicine (No.2019BZHYLL0201).
Provenance and peer review Not commissioned; externally peer reviewed.