HER2 in gastric cancer: Comparative analysis of three different antibodies using whole-tissue sections and tissue microarrays

Table 5 Accuracy of the three antibodies in the whole-tissue sections and the tissue microarrays

		HercepTest	4B5	SP3
Whole-tissue sections	AUC	0.73	0.91	0.78
	HercepTest	-	P = 0.002	P = 0.035
	4B5	P = 0.002	-	P = 0.265
	SP3	P = 0.035	P = 0.265	-
TMAs	AUC	0.71	0.79	0.8
	HercepTest	-	P = 0.058	P = 0.075
	4B5	P = 0.058	-	P = 0.714
	SP3	P = 0.075	P = 0.714	-

AUC: Area under the receiver operating characteristic curve; TMA: Tissue microarray.