Long-term exposure to air pollution and chronic kidney disease-associated mortality - results from the pooled cohort of the European multicentre ELAPSE-study

Pauline Kadelbach, Gudrun Weinmayr, Jie Chen, Andrea Jaensch Dipl-Dok, Sophia Rodopoulou, Maciej Strak, Kees de Hoogh, Zorana J Andersen, Tom Bellander, Jørgen Brandt, Giulia Cesaroni, Daniela Fecht, Prof Francesco Forastiere, Prof John Gulliver, Ole Hertel, Barbara Hoffmann, Ulla Arthur Hvidtfeldt, Prof Klea Katsouyanni, Matthias Ketzel, Karin LeanderPetter Ljungman, Patrik K E Magnusson, Göran Pershagen, Debora Rizzuto, Evangelia Samoli, Gianluca Severi, Massimo Stafoggia, Prof Anne Tjønneland, Roel Vermeulen, Annette Peters, Kathrin Wolf, Prof Ole Raaschou-Nielsen, Bert Brunekreef, Gerard Hoek, Emanuel Zitt, Prof Gabriele Nage

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Despite the known link between air pollution and cause-specific mortality, its relation to chronic kidney disease (CKD)-associated mortality is understudied. Therefore, we investigated the association between long-term exposure to air pollution and CKD-related mortality in a large multicentre population-based European cohort. Cohort data were linked to local mortality registry data. CKD-death was defined as ICD10 codes N18-N19 or corresponding ICD9 codes. Mean annual exposure at participant's home address was determined with fine spatial resolution exposure models for nitrogen dioxide (NO 2), black carbon (BC), ozone (O 3), particulate matter ≤2.5μm (PM 2.5) and several elemental constituents of PM 2.5. Cox regression models were adjusted for age, sex, cohort, calendar year of recruitment, smoking status, marital status, employment status and neighbourhood mean income. Over a mean follow-up time of 20.4 years, 313 of 289 564 persons died from CKD. Associations were positive for PM 2.5 (hazard ratio (HR) with 95% confidence interval (CI) of 1.31 (1.03-1.66) per 5μg/m 3, BC (1.26 (1.03-1.53) per 0.5×10 - 5/m), NO 2 (1.13 (0.93-1.38) per 10μg/m 3) and inverse for O 3 (0.71 (0.54-0.93) per 10μg/m 3). Results were robust to further covariate adjustment. Exclusion of the largest sub-cohort contributing 226 cases, led to null associations. Among the elemental constituents, Cu, Fe, K, Ni, S and Zn, representing different sources including traffic, biomass and oil burning and secondary pollutants, were associated with CKD-related mortality. In conclusion, our results suggest an association between air pollution from different sources and CKD-related mortality.

Original languageEnglish
Article number118942
JournalEnvironmental Research
Volume252
Issue numberPt 3
Early online date20 Apr 2024
DOIs
Publication statusPublished - 1 Jul 2024

Bibliographical note

Publisher Copyright:
© 2024 The Authors

Funding

the research described in this article was conducted under contract to the Health Effects Institute (HEI), an organisation jointly funded by the United States Environmental Protection Agency (EPA) (Assistance Award No. R-82811201) and certain motor vehicle and engine manufacturers. The contents of this article do not necessarily reflect the views of HEI, or its sponsors, nor do they necessarily reflect the views and policies of the EPA or motor vehicle and engine manufacturers.

FundersFunder number
U.S. Environmental Protection AgencyR-82811201
U.S. Environmental Protection Agency

    Keywords

    • Air pollution
    • Chronic kidney disease
    • Long-term exposure
    • Mortality
    • PM
    • Particulate matter constituents

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