Air pollution and incidence of cancers of the stomach and the upper aerodigestive tract in the European Study of Cohorts for Air Pollution Effects (ESCAPE)

Gabriele Nagel*, Massimo Stafoggia, Marie Pedersen, Zorana J. Andersen, Claudia Galassi, Jule Munkenast, Andrea Jaensch, Johan Sommar, Bertil Forsberg, David Olsson, Bente Oftedal, Norun H. Krog, Geir Aamodt, Andrei Pyko, Göran Pershagen, Michal Korek, Ulf De Faire, Nancy L. Pedersen, Claes Göran Östenson, Laura FratiglioniMette Sørensen, Anne Tjønneland, Petra H. Peeters, Bas Bueno-de-Mesquita, Roel Vermeulen, Marloes Eeftens, Michelle Plusquin, Timothy J. Key, Hans Concin, Alois Lang, Meng Wang, Ming Yi Tsai, Sara Grioni, Alessandro Marcon, Vittorio Krogh, Fulvio Ricceri, Carlotta Sacerdote, Andrea Ranzi, Giulia Cesaroni, Francesco Forastiere, Ibon Tamayo-Uria, Pilar Amiano, Miren Dorronsoro, Kees de Hoogh, Rob Beelen, Paolo Vineis, Bert Brunekreef, Gerard Hoek, Ole Raaschou-Nielsen, Gudrun Weinmayr

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Air pollution has been classified as carcinogenic to humans. However, to date little is known about the relevance for cancers of the stomach and upper aerodigestive tract (UADT). We investigated the association of long-term exposure to ambient air pollution with incidence of gastric and UADT cancer in 11 European cohorts. Air pollution exposure was assigned by land-use regression models for particulate matter (PM) below 10 μm (PM10), below 2.5 μm (PM2.5), between 2.5 and 10 μm (PMcoarse), PM2.5 absorbance and nitrogen oxides (NO2 and NOX) as well as approximated by traffic indicators. Cox regression models with adjustment for potential confounders were used for cohort-specific analyses. Combined estimates were determined with random effects meta-analyses. During average follow-up of 14.1 years of 305,551 individuals, 744 incident cases of gastric cancer and 933 of UADT cancer occurred. The hazard ratio for an increase of 5 μg/m3 of PM2.5 was 1.38 (95% CI 0.99; 1.92) for gastric and 1.05 (95% CI 0.62; 1.77) for UADT cancers. No associations were found for any of the other exposures considered. Adjustment for additional confounders and restriction to study participants with stable addresses did not influence markedly the effect estimate for PM2.5 and gastric cancer. Higher estimated risks of gastric cancer associated with PM2.5 was found in men (HR 1.98 [1.30; 3.01]) as compared to women (HR 0.85 [0.5; 1.45]). This large multicentre cohort study shows an association between long-term exposure to PM2.5 and gastric cancer, but not UADT cancers, suggesting that air pollution may contribute to gastric cancer risk.

Original languageEnglish
Pages (from-to)1632-1643
Number of pages12
JournalInternational Journal of Cancer
Volume143
Issue number7
Early online date26 Apr 2018
DOIs
Publication statusPublished - 1 Oct 2018

Keywords

  • Air pollution
  • Epidemiology
  • ESCAPE
  • Gastric cancer
  • Upper aerodigestive tract cancer
  • epidemiology
  • gastric cancer
  • air pollution
  • upper aerodigestive tract cancer

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