Record Details

Title Recent trends in breast cancer incidence in US white women by county-level urban/rural and poverty status
Author Hausauer, AK
Secondary Authors Keegan TH, Chang ET, Glaser SL, Howe H, Clarke CA
Publication Type (Help) article
Journal BMC Med
Month Jun 26
Year 2009
Pages 31
Volume 7
Number
Publisher
Address
Note doi: 10.1186/1741-7015-7-31
URL http://www.biomedcentral.com/1741-7015/7/31
PubMed ID 19558637
NCI Id
EPub Date
Citation Hausauer AK, Keegan TH, Chang ET, Glaser SL, Howe H, Clarke CA. Recent trends in breast cancer incidence in US white women by county-level urban/rural and poverty status. BMC Med. 2009 Jun 26;7:31. PMID 19558637. [http://www.biomedcentral.com/1741-7015/7/31.]
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Abstract

Unprecedented declines in invasive breast cancer rates occurred in the United States between 2001 and 2004, particularly for estrogen receptor-positive tumors among non-Hispanic white women over 50 years. To understand the broader public health import of these reductions among 47 previously unstudied populations, the authors utilized the largest available U.S. cancer registry resource to describe age-adjusted invasive and in situ breast cancer incidence trends for non-Hispanic white women aged 50 to 74 years overall and by county-level rural/urban and poverty status. They obtained invasive and in situ breast cancer incidence data for the years 1997 to 2004 from 29 NAACCR population-based cancer registries. Annual age-adjusted rates were examined overall and by rural/urban and poverty of patients’ counties of residence at diagnosis. Joinpoint regression was used to assess trends by annual quarter of diagnosis. Between 2001 and 2004, overall invasive breast cancer incidence fell 13.2%, with greater reductions among women living in urban (-13.8%) versus rural (-7.5%) and low- (-13.0%) or middle- (-13.8%) versus high- (-9.6%) poverty counties. Most incidence rates peaked around 1999 then declined after second quarter of 2002, although in rural counties, rates decreased monotonically after 1999. Similar but more attenuated patterns were seen for in situ cancers. Breast cancer rates fell more substantially in urban and low-poverty, affluent counties than in rural or high-poverty counties. These patterns likely reflect a major influence of reductions in hormone therapy use after July 2002 but cannot exclude possible effects due to screening patterns, particularly among rural populations where hormone therapy use was probably less prevalent.



Keywords

Keyword
breast
incidence
poverty
rural
trends
urban
women