Yi Wu , Chunqi Wang , Chunxiao Xu , Siming Wang , Rongshou Zheng , Chunying Lin , Xiaoyan Zhang , Bowang Chen , Yang Yang , Wei Li , Guangda He , Jianlan Cui , Wei Xu , Lijuan Song , Hao Yang , Wenyan He , Yan Zhang , Jing Wei , Tiantian Li , Xi Li
{"title":"Long-term exposure to ozone and incidence of lung cancer in China: data based on a national population cohort (ChinaHEART)","authors":"Yi Wu , Chunqi Wang , Chunxiao Xu , Siming Wang , Rongshou Zheng , Chunying Lin , Xiaoyan Zhang , Bowang Chen , Yang Yang , Wei Li , Guangda He , Jianlan Cui , Wei Xu , Lijuan Song , Hao Yang , Wenyan He , Yan Zhang , Jing Wei , Tiantian Li , Xi Li","doi":"10.1016/j.jncc.2025.06.005","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>Ozone (O<sub>3</sub>) is recognized as a predominant and increasingly prevalent gaseous pollutant contributing to the Global Burden of Disease. However, its effect on the development of lung cancer has not been adequately acknowledged.</div></div><div><h3>Methods</h3><div>Based on Health Evaluation And risk Reduction through nationwide Teamwork (ChinaHEART), a nationwide, population-based cohort study, 2,006,878 participants living in 20,159 communities or villages were passively followed for the incidence of lung cancer through a linkage of data with the National Central Cancer Registry. The average O<sub>3</sub> levels over ten years from the year of enrolment in their respective localities were determined based on geographic coordinates. We conducted Cox proportional-hazards regression models to assess the independent hazard ratios (HRs) associated with O<sub>3</sub> exposure and the development of lung cancer.</div></div><div><h3>Results</h3><div>During the follow-up of 4.93 million person-years, 4555 new cases of lung cancer were identified. After adjusting for participant characteristics and other environmental factors, we observed a significant positive association between ambient O<sub>3</sub> exposure and lung cancer. Compared with participants in the quartile 1 of O<sub>3</sub>, HRs and 95 % confidence intervals (CI) for the other three quartiles were 1.09 (95 % CI: 1.00–1.17), 1.17 (95 % CI: 1.06–1.29) and 1.42 (95 % CI: 1.26–1.59), respectively.</div></div><div><h3>Conclusions</h3><div>Long-term exposure to ambient O<sub>3</sub> is associated with a substantially higher risk of lung cancer. Further studies are needed to explore its pathogenic mechanisms, as well as to evaluate measures for exposure protection or harm mitigation at the individual or population level.</div></div>","PeriodicalId":73987,"journal":{"name":"Journal of the National Cancer Center","volume":"5 5","pages":"Pages 486-492"},"PeriodicalIF":9.4000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the National Cancer Center","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667005425000821","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective
Ozone (O3) is recognized as a predominant and increasingly prevalent gaseous pollutant contributing to the Global Burden of Disease. However, its effect on the development of lung cancer has not been adequately acknowledged.
Methods
Based on Health Evaluation And risk Reduction through nationwide Teamwork (ChinaHEART), a nationwide, population-based cohort study, 2,006,878 participants living in 20,159 communities or villages were passively followed for the incidence of lung cancer through a linkage of data with the National Central Cancer Registry. The average O3 levels over ten years from the year of enrolment in their respective localities were determined based on geographic coordinates. We conducted Cox proportional-hazards regression models to assess the independent hazard ratios (HRs) associated with O3 exposure and the development of lung cancer.
Results
During the follow-up of 4.93 million person-years, 4555 new cases of lung cancer were identified. After adjusting for participant characteristics and other environmental factors, we observed a significant positive association between ambient O3 exposure and lung cancer. Compared with participants in the quartile 1 of O3, HRs and 95 % confidence intervals (CI) for the other three quartiles were 1.09 (95 % CI: 1.00–1.17), 1.17 (95 % CI: 1.06–1.29) and 1.42 (95 % CI: 1.26–1.59), respectively.
Conclusions
Long-term exposure to ambient O3 is associated with a substantially higher risk of lung cancer. Further studies are needed to explore its pathogenic mechanisms, as well as to evaluate measures for exposure protection or harm mitigation at the individual or population level.