Table 1.

Scores of HER2 IHC and HER2 DISH separately 1 analyzed by GPA

HER2 status	No. of patients	%
	(n = 280)
HER2 IHC score
0	91	32.5
1+	112	40.0
2+	33	11.8
3+	44	15.7
HER2 DISH score
Negative	220	78.6
Positive	60	21.4

HER2 human epidermal growth factor receptor 2, IHC immunohistochemistry, DISH dual in situ hybridization, GPA gene-protein assay