Table 2.

Performance of the hierarchical deep learning system in different confidence regions on validation datasets 1 and 2.

		Number of images				% (95% CI)
Datasets	Regions	True	False	True	False	Sensitivity	Specificity
		Positive	Negative	Negative	Positive
	Overall region	2770	114	3210	207	0.9605 (0.953-0.968)	0.9394 (0.931-0.947)
validation dataset 1	Reliable region	2019	48	2455	55	0.9768 (0.970-0.983)	0.9781 (0.972-0.984)
	Suspicious region	751	66	755	152	0.9192 (0.900-0.938)	0.8324 (0.808-0.857)
	Overall region	592	27	1265	80	0.9564 (0.940-0.973)	0.9405 (0.928-0.953)
validation dataset 2	Reliable region	493	8	929	17	0.9840 (0.973-0.995)	0.9820 (0.974-0.991)
	Suspicious region	99	19	336	63	0.8390 (0.772-0.906)	0.8421 (0.806-0.878)