Concordance between Immunohistochemistry and Microarray Gene Expression Profiling for Estrogen Receptor, Progesterone Receptor, and HER2 Receptor Statuses in Breast Cancer Patients in Lebanon

Table 2

Microarray gene expression Values of ER, PR, and HER2 compared to Immunohistochemistry.

	IHC
	Positive	Negative	Total (%)
Microarray Analysis
Microarray-ER
Positive	65	2	67 (82.7)
Negative	0	14	14 (17.3)
Total (%)	65 (80.2)	16 (19.8)	81
Microarray-PR
Positive	54	7	61 (75.3)
Negative	4	16	20 (24.7)
Total (%)	58 (71.6)	23 (28.4)	81
Microarray-HER2
Positive	7	0	7 (8.6)
Negative	2	72	74 (91.4)
Total (%)	9 (11.1)	72 (88.9)	81