Overall, our results support that EGFR mRNA is elevated in TNBC, which is congruent with literature (Nielsen et al., 2004), but in the data examined as a whole across the 4 different BrCa subtypes, EGFR dichotomized high and low relative expression does not separate low from high progression-free interval or in summary no significant association between EGFR and our survival outcome, progression-free survival. This evidence concerns the gene EGFR and invasive breast carcinoma.