Boxplots demonstrate the median and IQR expression of four representative immune metagenes, grouped by tumor subtype and patient race. TNBC cases are in the left panel and ER-positive cases in the right panel. Race is on the x-axis, and log2-transformed, normalized expression of the metagene is on the y-axis. Log2-transformed median values, available cases (n), Wilcoxon Rank Sum p-values, and Bonferroni adjusted p-values are displayed for each metagene.