Table 2.

The correlation between human epidermal growth factor receptor 2 digital image analysis scores and pathologists’ scores

Pathologists	Visiopharm
	Negative (0/1+)	Equivocal (2+)	Positive (3+)	Total
Negative(0/1+)	407	25	0	432
Equivocal(2+)	41	54	6	101
Positive(3+)	0	6	73	79
Total	448	85	79	612

HER2 DIA scores were categorized into four categories with the following cutoff values: 0: connectivity=0; 1+: 0 <connectivity ≤0.12; 2+: 0.12<connectivity ≤0.49; 3+: Connectivity >0.49. HER2: Human epidermal growth factor receptor 2, DIA: Digital image analysis