Table 3.

The distribution of the types of polyps classified by the CNN.

	White light images (n = 783)
		The CNN classification (%)
		Adenoma	Hyperplastic	SSAP	Cancer	The others
True histology	Adenoma (n = 582)	562 (97)	14 (2)	0 (0)	4 (1)	2 (0)
	Hyperplastic (n = 125)	64 (51)	59 (47)	0 (0)	0 (0)	2 (2)
	SSAP (n = 23)	6 (26)	12 (52)	5 (22)	0 (0)	0 (0)
	Cancer (n = 29)	6 (21)	0 (0)	0 (0)	23 (79)	0 (0)
	The others (n = 24)	14 (58)	7 (29)	0 (0)	0 (0)	3 (13)
	Narrow band images (n = 290)
		The CNN classification (%)
		Adenoma	Hyperplastic	SSAP	Cancer	The others
True histology	Adenoma (n = 203)	197 (97)	5 (2)	0 (0)	1 (0)	0 (0)
	Hyperplastic (n = 68)	31 (46)	37 (54)	0 (0)	0 (0)	0 (0)
	SSAP (n = 6)	2 (33)	4 (67)	0 (0)	0 (0)	0 (0)
	Cancer (n = 3)	3 (100)	0 (0)	0 (0)	0 (0)	0 (0)
	The others (n = 10)	3 (30)	7 (70)	0 (0)	0 (0)	0 (0)

CNN, convolutional neural network; SSAP, sessile serrated adenoma/polyp.