Table 2.

Agreement and accuracy of model versus pathologist grading of no special type (NST) tumors.

Model targets	Cohen’s Kappa (SD)	Accuracy (SD)
Tumor grade only	0.54 (± 0.10)	0.77 (± 0.05)
Tumor grade and component grades	0.61 (± 0.09)	0.80 (± 0.05)
Tumor grade, component grades and HR and HER2 status	0.58 (± 0.09)	0.79 (± 0.05)

The results for three models trained on different sets of targets are shown on the validation set (n = 142). The standard deviation (SD) was calculated using bootstrapping.

HR hormone receptor.