TY - JOUR
T1 - Breast Cancer Incidence in Relation to Long-Term Low-Level Exposure to Air Pollution in the ELAPSE Pooled Cohort
AU - Hvidtfeldt, Ulla Arthur
AU - Chen, Jie
AU - Rodopoulou, Sophia
AU - Strak, Maciej
AU - de Hoogh, Kees
AU - Andersen, Zorana J.
AU - Bellander, Tom
AU - Brandt, Jørgen
AU - Fecht, Daniela
AU - Forastiere, Francesco
AU - Gulliver, John
AU - Hertel, Ole
AU - Hoffmann, Barbara H.
AU - Katsouyanni, Klea
AU - Ketzel, Matthias
AU - Brynedal, Boel
AU - Leander, Karin
AU - Ljungman, Petter L.S.
AU - Magnusson, Patrik K.E.
AU - Nagel, Gabriele
AU - Pershagen, Göran
AU - Rizzuto, Debora
AU - Boutron-Ruault, Marie Christine
AU - Samoli, Evangelia
AU - So, Rina
AU - Stafoggia, Massimo
AU - Tjønneland, Anne
AU - Vermeulen, Roel
AU - Verschuren, W. M.Monique
AU - Weinmayr, Gudrun
AU - Wolf, Kathrin
AU - Zhang, Jiawei
AU - Zitt, Emanuel
AU - Brunekreef, Bert
AU - Hoek, Gerard
AU - Raaschou-Nielsen, Ole
N1 - Publisher Copyright:
©2022 American Association for Cancer Research.
PY - 2023
Y1 - 2023
N2 - BACKGROUND: Established risk factors for breast cancer include genetic disposition, reproductive factors, hormone therapy, and lifestyle-related factors such as alcohol consumption, physical inactivity, smoking, and obesity. More recently a role of environmental exposures, including air pollution, has also been suggested. The aim of this study, was to investigate the relationship between long-term air pollution exposure and breast cancer incidence. METHODS: We conducted a pooled analysis among six European cohorts (n = 199,719) on the association between long-term residential levels of ambient nitrogen dioxide (NO2), fine particles (PM2.5), black carbon (BC), and ozone in the warm season (O3) and breast cancer incidence in women. The selected cohorts represented the lower range of air pollutant concentrations in Europe. We applied Cox proportional hazards models adjusting for potential confounders at the individual and area-level. RESULTS: During 3,592,885 person-years of follow-up, we observed a total of 9,659 incident breast cancer cases. The results of the fully adjusted linear analyses showed a HR (95% confidence interval) of 1.03 (1.00-1.06) per 10 μg/m³ NO2, 1.06 (1.01-1.11) per 5 μg/m³ PM2.5, 1.03 (0.99-1.06) per 0.5 10-5 m-1 BC, and 0.98 (0.94-1.01) per 10 μg/m³ O3. The effect estimates were most pronounced in the group of middle-aged women (50-54 years) and among never smokers. CONCLUSIONS: The results were in support of an association between especially PM2.5 and breast cancer. IMPACT: The findings of this study suggest a role of exposure to NO2, PM2.5, and BC in development of breast cancer.
AB - BACKGROUND: Established risk factors for breast cancer include genetic disposition, reproductive factors, hormone therapy, and lifestyle-related factors such as alcohol consumption, physical inactivity, smoking, and obesity. More recently a role of environmental exposures, including air pollution, has also been suggested. The aim of this study, was to investigate the relationship between long-term air pollution exposure and breast cancer incidence. METHODS: We conducted a pooled analysis among six European cohorts (n = 199,719) on the association between long-term residential levels of ambient nitrogen dioxide (NO2), fine particles (PM2.5), black carbon (BC), and ozone in the warm season (O3) and breast cancer incidence in women. The selected cohorts represented the lower range of air pollutant concentrations in Europe. We applied Cox proportional hazards models adjusting for potential confounders at the individual and area-level. RESULTS: During 3,592,885 person-years of follow-up, we observed a total of 9,659 incident breast cancer cases. The results of the fully adjusted linear analyses showed a HR (95% confidence interval) of 1.03 (1.00-1.06) per 10 μg/m³ NO2, 1.06 (1.01-1.11) per 5 μg/m³ PM2.5, 1.03 (0.99-1.06) per 0.5 10-5 m-1 BC, and 0.98 (0.94-1.01) per 10 μg/m³ O3. The effect estimates were most pronounced in the group of middle-aged women (50-54 years) and among never smokers. CONCLUSIONS: The results were in support of an association between especially PM2.5 and breast cancer. IMPACT: The findings of this study suggest a role of exposure to NO2, PM2.5, and BC in development of breast cancer.
U2 - 10.1158/1055-9965.EPI-22-0720
DO - 10.1158/1055-9965.EPI-22-0720
M3 - Journal article
C2 - 36215200
AN - SCOPUS:85141487630
VL - 32
SP - 105
EP - 113
JO - Cancer Epidemiology, Biomarkers & Prevention
JF - Cancer Epidemiology, Biomarkers & Prevention
SN - 1055-9965
IS - 1
ER -