TABLE 1

Immunohistochemistry Scores for EGFR Staining in Cohort of Breast Cancer

VariableAllEGFR+EGFR−P*
Grade10622 (21%)84 (79%)
130 (0%)3 (100%)
2224 (18%)18 (82%)
38017 (21%)63 (79%)
Not applicable†110
TNBC status0.005
TNBC2811 (39%)17 (61%)
Non-TNBC7811 (14%)67 (86%)
Non-TNBC0.029
ER/PR+ HER2−231 (4%)22 (96%)
HER2+5510 (18%)45 (82%)

  • ↵* χ2 test.

  • ↵† Grade not available for 1 case.

  • ER/PR = estrogen receptor/progesterone receptor.

  • Data are N, followed by percentage in parentheses.