3 ), albeit with borderline significance, implying that additional factors beyond pathological stage contribute to the divergent clinical outcome of AA patients with BasalMyo tumors compared to EA patients.
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Ancestry-associated transcriptomic profiles of breast cancer in patients of African, Arab, and European ancestry.
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Compared to AsA patients, ArA patients showed a trend towards lower enrichment scores of the Treg and AMPK signature (Fig. 5a ).
Furthermore, we observed an increase in the proportion of BasalMyo tumors in ArA patients (25.0 vs 16.5% in EA, χ 2 = 1.0E − 4, n.s.), although this did not reach statistical significance as a likely result of the small cohort size.
In multivariate analysis, AA remained significantly associated with worse survival when adjusted for tumor stage, and reached borderline significance when adjusted for tumor stage and age (Supplementary Fig. 3 ).