Table 4 Stage distribution of post-colonoscopy colorectal cancers (PCCRCs) in the different etiologic classifications.

Stage	All PCCRCs (n=432)	Etiologic classification
		Possible missed lesion with adequate examination (n=202)	Possible missed lesion with inadequate examination (n=28)	Detected lesion that was not removed (n=57)	Likely incomplete polyp resection (n=107)	Likely new CRC (n=32)	Unknown (n=6)
I	144 (33.3)	56 (27.7)	7 (25.0)	25 (43.9)	48 (44.9)	5 (15.6)	3 (50.0)
II	89 (20.6)	47 (23.3)	3 (10.7)	10 (17.5)	21 (19.6)	7 (21.9)	1 (16.7)
III	124 (28.7)	61 (30.2)	9 (32.1)	15 (26.3)	24 (22.4)	15 (46.9)	0
IV	69 (16.0)	37 (18.3)	8 (28.6)	5 (8.8)	13 (12.1)	5 (15.6)	1 (16.7)
Unknown	6 (1.4)	1 (0.5)	1 (3.6)	2 (3.5)	1 (0.9)	0	1 (16.7)