Air pollution and green spaces in relation to breast cancer risk among pre and postmenopausal women : A mega cohort from Catalonia

Copyright © 2022 Elsevier Inc. All rights reserved..

BACKGROUND: The association between air pollution and green spaces with breast cancer risk stratified by menopausal status has not been frequently investigated despite its importance given the different impact of risk factors on breast cancer risk depending on menopausal status.

OBJECTIVES: To study the association between air pollution, green spaces and pre and postmenopausal breast cancer risk.

METHODS: We conducted a population-based cohort study using electronic primary care records in Catalonia. We included women aged 17-85 years free of cancer at study entry between 2009 and 2017. Our exposures were particulate matter <2.5 μm (PM2.5) & <10 μm (PM10), nitrogen dioxide (NO2), normalized difference vegetation index (NDVI), and percentage of green spaces estimated at the census tract level. Breast cancer was identified with ICD-10 code C50. We estimated cause-specific hazard ratios (HR) for the relationship between each individual exposure and pre and postmenopausal breast cancer risk, using linear and non-linear models.

RESULTS: Of the 1,054,180 pre and 744,658 postmenopausal women followed for a median of 10 years, 6,126 and 17,858 developed breast cancer, respectively. Among premenopausal women, only very high levels of PM10 (≥46 μg/m3) were associated with increased cancer risk (compared to lower levels) in non-linear models. Among postmenopausal women, an interquartile range increase in PM2.5 (HR:1.03; 95%CI:1.01-1.04), PM10 (1.03; 1.01-1.05), and NO2 (1.05; 1.02-1.08) were associated with higher cancer risk. NDVI was negatively associated with decreased cancer risk only among postmenopausal women who did not change residence during follow-up (0.84; 0.71-0.99) or who were followed for at least three years (0.82; 0.69-0.98).

DISCUSSION: Living in areas with high concentrations of PM2.5, PM10, and NO2 increases breast cancer risk in postmenopausal women while long-term exposure to green spaces may decrease this risk. Only very high concentrations of PM10 increase breast cancer risk in premenopausal women.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:214

Enthalten in:

Environmental research - 214(2022), Pt 1 vom: 01. Nov., Seite 113838

Sprache:

Englisch

Beteiligte Personen:

Terre-Torras, Isaura [VerfasserIn]
Recalde, Martina [VerfasserIn]
Díaz, Yesika [VerfasserIn]
de Bont, Jeroen [VerfasserIn]
Bennett, Matthew [VerfasserIn]
Aragón, María [VerfasserIn]
Cirach, Marta [VerfasserIn]
O'Callaghan-Gordo, Cristina [VerfasserIn]
Nieuwenhuijsen, Mark J [VerfasserIn]
Duarte-Salles, Talita [VerfasserIn]

Links:

Volltext

Themen:

Air Pollutants
Air pollution
Breast cancer
Green spaces
Journal Article
Malignant neoplasm
Nitrogen Dioxide
Particulate Matter
Research Support, Non-U.S. Gov't
S7G510RUBH
Urban environment

Anmerkungen:

Date Completed 30.08.2022

Date Revised 29.09.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.envres.2022.113838

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM343312859