Non-optical polyp-based resect and discard strategy: A prospective clinical study

Table 1 The polyp-based resect and discard strategy

Scenario	Rule		If family history of CRC (first-degree relative)
		Surveillance interval recommendation based on 2012 guidelines, yr
1	No polyp	10	5
2	1–2 diminutive polyps (largest polyp max 5 mm)	10	5
3	1–3 small polyps (all polyps 1–9 mm and the largest polyp max < 10 mm)	5	5
4	≥ 4 polyps, any size	Follow-up pathology results	-
5	At least 1 polyp ≥ 10 mm	Follow-up pathology results	-
6	Insufficient or inadequate bowel preparation	1	-
7	Unclear	-	-
		Surveillance interval recommendation based on 2020 guidelines, yr
1	No polyp	10	5
2	1–3 diminutive polyps; or 2 diminutive polyps and 1 small polyp	10	5
3	1–2 small polyps exclusively	10	5
4	> 3 polyps, any size, or > 2 polyps 6–9 mm	Follow-up pathology results	–
5	≥ 1 polyp ≥ 10 mm	Follow-up pathology results	–
6	Insufficient or inadequate bowel preparation	1	1

CRC: Colorectal cancer.