Table 3.

Distribution of WSI for training, validation, and test of four of the datasets. Italicized numbers indicate added slides with extra-nodal tissue containing features of fat necrosis and foreign body tissue reaction.

Dataset	Summary			Training			Validation			Testing
	N	Neg	Pos	N	Neg	Pos	N	Neg	Pos	N	Neg	Pos
CAMELYON16	399	239	160	216	127	89	54	32	22	129	80	49 (1)
CAMELYON17	344	310	34	55	40	15	19	10	9	270	260	10
LocalSentinel	161	107	54	88	58	30	22	15	7	51	34	17 (2)
LocalAxillary	48 + 9	24 + 9	24	24 + 6	11 + 6	13	7 + 3	3 + 3	4	17	10	7 (3)
Total	961	689	272	389	242	147	105	63	42	467	384	83

⁽¹⁾ Consists of 6 ILC slides (12%) and 43 NST slides (88%); ⁽²⁾ Consists of 6 ILC slides (35%) and 11 NST slides (65%); ⁽³⁾ Consists of 2 ILC slides (28%) and 5 NST slides (72%).