Identifying Equitable Screening Mammography Strategies for Black Women in the United States Using Simulation Modeling.
Identifying Equitable Screening Mammography Strategies for Black Women in the United States Using Simulation Modeling.
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DOI:
10.7326/m20-6506
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发表时间:
2021-12
影响因子:
39.2
通讯作者:
Mandelblatt, Jeanne S.
中科院分区:
文献类型:
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作者:
Chapman, Christina Hunter;Schechter, Clyde B.;Cadham, Christopher J.;Trentham-Dietz, Amy;Gangnon, Ronald E.;Jagsi, Reshma;Mandelblatt, Jeanne S.
Screening mammography guidelines do not explicitly consider racial differences in breast cancer epidemiology, treatment, and survival. To compare tradeoffs of screening strategies in Black women to those of White women screened under current guidelines. An established Cancer Intervention and Surveillance Modeling Network model simulated screening outcomes using race-specific inputs for subtype distribution, breast density, mammogram performance, age-, stage-, and subtype-specific treatment effects, and non-breast cancer mortality. United States. 1980 US birth cohort of Black and White women. Screening strategies until age 74 with varying initiation ages and intervals. Outcomes included benefits (life-years gained, breast cancer deaths averted, and mortality reduction), harms (mammograms, false positives, and overdiagnoses), and benefits-to-harm ratios (tradeoffs) by race. We evaluated efficiency (resources per unit benefit), mortality disparity reduction, and equity in tradeoffs. Equitable strategies for Black women were defined as those with tradeoffs closest to benchmark values for screening White women biennially from 50–74. Biennial screening from 45–74 was the most efficient for Black women, while biennial screening from 40–74 was the most equitable. Initiating screening ten-years earlier in Black vs. White women reduced Black-White mortality disparities by 57% with comparable life-years gained/mammogram for both populations. Selection of the most equitable strategy was sensitive to assumptions about disparities in real world treatment effectiveness: the less effective treatment was for Black women, the more intensively Black women could be screened before tradeoffs fell short of those experienced by White women. Single model. Initiating biennial screening in Black women at age 40 yields reduces breast cancer mortality disparities and yields benefit-to-harm ratios that are comparable to tradeoffs of White women screened biennially from 50–74.