Table 2.

Intrinsic subtype distribution by immunohistochemistry and PAM50 (n = 348)

Intrinsic subtypes by IHC/FISH
Intrinsic subtypes by PAM50Luminal ALuminal BLuminal/HER-2+HER-2+/ERPRCore basalTotal
 Luminal A101 (78%)20 (15%)8 (6%)01 (1%)130
 Luminal B23 (33%)39 (57%)7 (10%)0069
 HER-2-E9 (12%)14 (19%)26 (35%)23 (31%)3 (4%)75
 Basal-like1 (1%)2 (3%)02 (3%)69 (93%)74
Total13475412573348