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Cancer Causes & Control
Published in: Cancer Causes & Control 8/2018

01-08-2018 | Original paper

Mapping hot spots of breast cancer mortality in the United States: place matters for Blacks and Hispanics

Authors: Justin Xavier Moore, Kendra J. Royston, Marvin E. Langston, Russell Griffin, Bertha Hidalgo, Henry E. Wang, Graham Colditz, Tomi Akinyemiju

Published in: Cancer Causes & Control | Issue 8/2018

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Abstract

Purpose

The goals of this study were to identify geographic and racial/ethnic variation in breast cancer mortality, and evaluate whether observed geographic differences are explained by county-level characteristics.

Methods

We analyzed data on breast cancer deaths among women in 3,108 contiguous United States (US) counties from years 2000 through 2015. We applied novel geospatial methods and identified hot spot counties based on breast cancer mortality rates. We assessed differences in county-level characteristics between hot spot and other counties using Wilcoxon rank-sum test and Spearman correlation, and stratified all analysis by race/ethnicity.

Results

Among all women, 80 of 3,108 (2.57%) contiguous US counties were deemed hot spots for breast cancer mortality with the majority located in the southern region of the US (72.50%, p value < 0.001). In race/ethnicity-specific analyses, 119 (3.83%) hot spot counties were identified for NH-Black women, with the majority being located in southern states (98.32%, p value < 0.001). Among Hispanic women, there were 83 (2.67%) hot spot counties and the majority was located in the southwest region of the US (southern = 61.45%, western = 33.73%, p value < 0.001). We did not observe definitive geographic patterns in breast cancer mortality for NH-White women. Hot spot counties were more likely to have residents with lower education, lower household income, higher unemployment rates, higher uninsured population, and higher proportion indicating cost as a barrier to medical care.

Conclusions

We observed geographic and racial/ethnic disparities in breast cancer mortality: NH-Black and Hispanic breast cancer deaths were more concentrated in southern, lower SES counties.
Appendix
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Metadata
Title
Mapping hot spots of breast cancer mortality in the United States: place matters for Blacks and Hispanics
Authors
Justin Xavier Moore
Kendra J. Royston
Marvin E. Langston
Russell Griffin
Bertha Hidalgo
Henry E. Wang
Graham Colditz
Tomi Akinyemiju
Publication date
01-08-2018
Publisher
Springer International Publishing
Published in
Cancer Causes & Control / Issue 8/2018
Print ISSN: 0957-5243
Electronic ISSN: 1573-7225
DOI
https://doi.org/10.1007/s10552-018-1051-y

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