Importance Disproportionately aggressive tumor biology among non-Hispanic Black women
with early-stage, estrogen receptor (ER)–positive breast cancer contributes to racial …

Importance Black women with hormone receptor–positive breast cancer experience the
greatest racial disparity in survival of all breast cancer subtypes. The relative contributions of …

Purpose Previous research has found significant survival disparities between Black and
White women among select stages and subtypes of breast cancer, however other …

Abstract Purpose Studies of Black–White differences in breast cancer subtype often
emphasize potential ancestry-associated genetic or lifestyle risk factors without fully …

Purpose Cutoffs of the 21-gene recurrence score (RS), a commonly used genomic assay for
hormone receptor-positive breast cancer, have been updated. Little is known about …

Abstract Background African American (AA) women with breast cancer have persistently
higher mortality compared to whites. We evaluated racial disparities in mortality among …

Importance Given the widespread use of the 21-gene recurrence score for identifying
candidates for adjuvant chemotherapy, it is important to examine the performance of the …

Purpose Disparities in breast cancer survival have been observed within marginalized
racial/ethnic groups and within the rural–urban continuum for decades. We examined …

Background Racial disparities in breast cancer survival have been well documented. This
study examines the association of race/ethnicity and socioeconomic status (SES) on breast …

Background Black women are more likely than white women to have an aggressive subtype
of breast cancer that is associated with higher mortality and this may contribute to the …