Fig. 4: Breast cancer with a high allograft rejection score was significantly associated with aggressive pathological grade, advanced stage, and lymph node metastasis.

Boxplots of the score by Nottingham pathological grade, American joint cancer commit (AJCC) stage, and lymph node metastasis status in the METABRIC and GSE96058 cohorts. p-values were calculated by Kruskal–Wallis and Mann–Whitney U test. Boxplots were of Tukey type, with boxes depicting median and inter-quartile range.