Table 3. The confusion matrix on duct level p63 immunohistochemistry images.

Prediction
Actual	Normal	UDH	LG-DCIS	HG-DCIS
Normal	13	0	0	1
UDH	1	12	2	1
LG-DCIS	0	3	13	5
HG-DCIS	2	2	2	13

4 groups: Accuracy 72.9% (kappa index 0.64). Normal/Benign vs DCIS: Accuracy 84.3% (kappa index 0.68).