Grant Details
Grant Number: |
5R01CA266377-04 Interpret this number |
Primary Investigator: |
Lee, Christoph |
Organization: |
University Of Washington |
Project Title: |
Racial and Socioeconomic Disparities in Breast Cancer Diagnostic Work Up and Outcomes |
Fiscal Year: |
2024 |
Abstract
Project Summary
U.S. women of minority race/ethnicity, lower education, lower income, rural residence, and the underinsured
experience higher breast cancer disease burden and lower survival rates than women without these
characteristics, despite recent improvements in screening access and treatments. The majority of efforts to
mitigate these disparities have focused on screening mammography access, but women must navigate
multiple additional steps when cancer is suspected, including more imaging, biopsies, and specialist
consultations. Each year, >12 million U.S. women enter this diagnostic care continuum. Failure to receive
timely, quality evaluation leads to delayed diagnosis, more invasive procedures, advanced cancer stage at
diagnosis, and greater mortality. Compared to screening, surprisingly little is known about disparities during
this diagnostic period. It is estimated that up to 30% of women with abnormalities detected by mammography
fail to obtain appropriate or timely follow-up, and up to 50% of racial/ethnic minorities and socioeconomically
disadvantaged women experience such failures. A clearer understanding of disparities along the diagnostic
continuum is hindered by the decentralized nature of breast cancer screening and diagnosis in the U.S., with
disparities in care likely due to a complex combination of individual, residential, and healthcare delivery factors.
We propose to conduct the largest U.S. observational study of disparities in diagnostic breast imaging to date.
Specifically, we aim to 1) identify specific subpopulations of women with lower access to and use of key
diagnostic imaging technologies; 2) determine differences in diagnostic outcomes that can serve as quality of
care indicators based on race/ethnicity and socioeconomic status; and 3) identify differences in timeliness of
diagnostic evaluation among disparities populations. We will use multi-level statistical modeling and mediation
analyses to account for multifactorial interactions that likely influence inequitable diagnostic care. Our team, the
Breast Cancer Surveillance Consortium, consists of national experts in breast cancer epidemiology,
biostatistics, health services research, medicine, and radiology. The BCSC represents the largest longitudinal
breast cancer imaging data resource linked to long-term outcomes that is representative of the general U.S.
population by race/ethnicity. We systematically collect woman-, exam-, residential-, practice-, provider- and
tumor-level data across seven regional registries and more than 200 individual practices. With data collected
for 13 million breast imaging exams, 5.5 million of which were performed among traditional disparities
populations, our team is well-positioned to carry out the proposed analyses. Our study will help shift the breast
cancer disparities research paradigm from focusing on screening access to evaluating the entire diagnostic
episode. By identifying novel quality of care metrics and “early warning” indicators of disparities, our results will
inform both practice-level interventions aimed at closing local disparities gaps and national practice guidelines
and policies directed towards more equitable breast cancer diagnostic evaluation.
Publications
Toward More Equitable Breast Cancer Outcomes.
Authors: Elmore J.G.
, Lee C.I.
.
Source: Jama, 2024-04-30 00:00:00.0; , .
EPub date: 2024-04-30 00:00:00.0.
PMID: 38687474
Related Citations
Using Machine Learning to Predict Adherence to Recommended Imaging Follow-Up.
Authors: Lawson M.B.
, Lee C.I.
.
Source: Journal Of The American College Of Radiology : Jacr, 2024-03-08 00:00:00.0; , .
EPub date: 2024-03-08 00:00:00.0.
PMID: 38461916
Related Citations
Population Attributable Risk of Advanced-Stage Breast Cancer by Race and Ethnicity.
Authors: Kerlikowske K.
, Chen S.
, Bissell M.C.S.
, Lee C.I.
, Tice J.A.
, Sprague B.L.
, Miglioretti D.L.
.
Source: Jama Oncology, 2024-02-01 00:00:00.0; 10(2), p. 167-175.
PMID: 38060241
Related Citations
Racial and ethnic variation in diagnostic mammography performance among women reporting a breast lump.
Authors: Nyante S.J.
, Abraham L.
, Aiello Bowles E.J.
, Lee C.I.
, Kerlikowske K.
, Miglioretti D.L.
, Sprague B.L.
, Henderson L.M.
.
Source: Cancer Epidemiology, Biomarkers & Prevention : A Publication Of The American Association For Cancer Research, Cosponsored By The American Society Of Preventive Oncology, 2023-07-13 00:00:00.0; , .
EPub date: 2023-07-13 00:00:00.0.
PMID: 37440458
Related Citations
Risk of cancer versus risk of cancer diagnosis? Accounting for diagnostic bias in predictions of breast cancer risk by race and ethnicity.
Authors: Gard C.C.
, Lange J.
, Miglioretti D.L.
, O'Meara E.S.
, Lee C.I.
, Etzioni R.
.
Source: Journal Of Medical Screening, 2023-06-12 00:00:00.0; , p. 9691413231180028.
EPub date: 2023-06-12 00:00:00.0.
PMID: 37306245
Related Citations
Addressing Racial Inequities in Access to State-of-the-Art Breast Imaging.
Authors: Lee C.I.
, Lawson M.B.
.
Source: Radiology, 2023 Feb; 306(2), p. e222405.
EPub date: 2022-10-11 00:00:00.0.
PMID: 36219120
Related Citations
Improving Health Equity in Adherence to Diagnostic Breast Imaging Workup Recommendations.
Authors: Lopez E.J.
, Lee C.I.
.
Source: Journal Of The American College Of Radiology : Jacr, 2022 Dec; 19(12), p. 1310-1311.
EPub date: 2022-10-05 00:00:00.0.
PMID: 36208840
Related Citations
Multilevel Factors Associated With Time to Biopsy After Abnormal Screening Mammography Results by Race and Ethnicity.
Authors: Lawson M.B.
, Bissell M.C.S.
, Miglioretti D.L.
, Eavey J.
, Chapman C.H.
, Mandelblatt J.S.
, Onega T.
, Henderson L.M.
, Rauscher G.H.
, Kerlikowske K.
, et al.
.
Source: Jama Oncology, 2022-08-01 00:00:00.0; 8(8), p. 1115-1126.
PMID: 35737381
Related Citations
Diagnostic Mammography Performance across Racial and Ethnic Groups in a National Network of Community-Based Breast Imaging Facilities.
Authors: Nyante S.J.
, Abraham L.
, Aiello Bowles E.J.
, Lee C.I.
, Kerlikowske K.
, Miglioretti D.L.
, Sprague B.L.
, Henderson L.M.
, Breast Cancer Surveillance Consortium
.
Source: Cancer Epidemiology, Biomarkers & Prevention : A Publication Of The American Association For Cancer Research, Cosponsored By The American Society Of Preventive Oncology, 2022-07-01 00:00:00.0; 31(7), p. 1324-1333.
PMID: 35712862
Related Citations
Tackling Health Disparities in Radiology: A Practical Conceptual Framework.
Authors: Lawson M.B.
, Scheel J.R.
, Onega T.
, Carlos R.C.
, Lee C.I.
.
Source: Journal Of The American College Of Radiology : Jacr, 2022 02; 19(2 Pt B), p. 344-347.
PMID: 35152959
Related Citations