Neighborhood Social Environmental Factors and Breast Cancer Subtypes among Black Women.
Neighborhood Social Environmental Factors and Breast Cancer Subtypes among Black Women.
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DOI:
10.1158/1055-9965.epi-20-1055
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Llanos AAM
中科院分区:
文献类型:
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作者:
Qin B;Babel RA;Plascak JJ;Lin Y;Stroup AM;Goldman N;Ambrosone CB;Demissie K;Hong CC;Bandera EV;Llanos AAM
The disproportionate burden of more aggressive breast cancer subtypes among African American/Black women may stem from multilevel determinants. However, data are limited regarding the impacts of neighborhood social environmental characteristics among Black women. We evaluated the association between neighborhood-level socioeconomic status (nSES) and breast cancer subtypes in the Women’s Circle of Health and Women’s Circle of Health Follow-up Study, which included 1,220 Black women diagnosed from 2005 to 2017 with invasive breast cancer. nSES at diagnosis was measured using NCI’s census tract-level SES index. We used multilevel multinomial logistic regression models to estimate the association of nSES with breast cancer subtypes [triple-negative breast cancer (TNBC), HER2-positive vs. luminal A], adjusting for individual-level SES, body mass index, and reproductive factors. We tested for interactions by neighborhood racial composition. Compared to census tracts characterized as high nSES, the relative risk ratios (RRR) for TNBC were 1.81 (95% CI: 1.20–2.71) and 1.95 (95% CI: 1.27–2.99) for women residing in areas with intermediate and low nSES, respectively (p-trend: .002). Neighborhood racial composition modified the association between nSES and TNBC; the highest relative risk of TNBC was among women residing in low nSES areas with low proportions of Black residents. Black women residing in socioeconomically disadvantaged neighborhoods may have an increased risk of TNBC, particularly among areas with lower proportions of Black residents. Places people live may influence breast tumor biology. A deeper understanding of multilevel pathways contributing to tumor biology is needed.